Structural Floor and Roof Solutions€¦ · slab depth or profile gauge for UDL loadings of...
Transcript of Structural Floor and Roof Solutions€¦ · slab depth or profile gauge for UDL loadings of...
smdltd.co.uk2 The White Book V4
Contents Page Title
04. . . .INTRODUCTION08. . . .STEP 1, WHICH PROFILE AND GAUGE? 10. . . .TR50 FLOOR DECK PROFILE14. . . .R51+ FLOOR DECK PROFILE54. . . .TR60+ FLOOR DECK PROFILE94. . . .TR80+ FLOOR DECK PROFILE134. . .TR220 FLOOR DECK PROFILE138 INDEX143 CHANGES/UPDATE LOG
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Technical Guidance for H&S, Floor and Roof Deck, Studs and Concrete
Design information covering the relevant and most up to date British Standards, Eurocodes and industry guidance documents including: BS5950,
EC4 and SCI P300.
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05 Floor products to meet your specification06 The Three-step Process07 Technical Design Table Notes08 Step 1 - Which Profile and Gauge?
INTRODUCTION Page Title
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Floor products to meet your specificationChoosing the correct floor deck product to suit your project specification can be challenging. With a comprehensive product range and wealth of technical experience, SMD has the profile to suit your needs.
Whether you are looking for a formwork-only solution or a product to form part of a structural composite slab, we have a range of floor deck profiles to suit all project and design drivers.
When choosing the type of floor deck profile to use there are many factors that need to be considered. These include span, composite beam design, slab design, loadings and construction methods. The most suitable product will depend on which of these criteria is your driving factor.
Whatever your design driver, a common goal is to reduce the need for temporary propping on site as this sterilises working areas and can impact on programme.
Our range of profiles from 50mm to 220mm deep are available in varying grades and thicknesses providing design flexibility to minimise propping in all scenarios.
This ‘White Book’ has been developed as a quick reference tool to be used by architects, engineers and specifiers when looking for a quick concept design for a composite slab. By following 3 simple steps, a suitable deck type/slab/reinforcement specification can be determined for your project.
ProfileGauges Available mm Steel Grade N/mm2 TAB-Deck™
Fibre Concrete0.7 0.8 0.9 1.0 1.2 1.13 1.25 S250 S350 S450
TR50 - - - -
R51+ - - - -
TR60+ - - - - -
TR80+ - - - - -
TR220* - - - - - - - -
Product Options
Benefits• Provides the tensile reinforcement
requirements of the slab• Composite construction reduces
steelwork frame weight• Can achieve up to 4hr fire rating for
the slab• Reduced lead in periods• Proactive approach to late changes• Direct control of the manufacturing
process• Excellence Quality Management (BS
EN 1090)• Manufactured from steel strip to BS
EN 10143 and BS EN 10346• CE marked products
For comprehensive design data on all our floor profiles,
refer to The White Book or download
Elements® Span Check App for Apple and Android devices. To run calculations, download SMD
Elements® Design Software.Watch our YouTube tutorial how to use
the floor deck section of Elements® Design Software.
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smdltd.co.uk6 The White Book V4
Slab Depth (mm)
Span
Len
gth
(m)
150140130 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on A393 mesh. It may be possible to reduce mesh size by referencing load/span tables during Step 3.
Construction Stage
TR60+ 1.2mm
TR60+ 0.9mm
TR60+ 1.0mm
Min
for
1.5
hr F
ire
Min
for
2hr
Fire
10kN10kN
1hr 10kN1hr7.5kN5kN
7.5kN7.5kN
1hr Fire 1.5hr Fire 2hr Fire
Slab Depth (mm)
Span
Len
gth
(m)
150140130 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on 30kg/m3≥ HE++ 1/50 Fibres. It may be possible to change fibre type and/or reduce the dosage by referencing load/span tables during Step 3.
Construction Stage
TR60+ 1.2mm
TR60+ 0.9mm
TR60+ 1.0mm
Min
for
1.5
hr F
ire
Min
for
2hr
Fire
10
kN7.5
kN10kN
7.5kN
10kN
7.5kN
5kN
1hr Fire 1.5hr Fire 2hr Fire
The Three_step Process
Step 1, Which Profile and Gauge?Refer to Construction Stage graph on page 8.
Typically, spans are governed by the maximum 'unpropped' condition at Construction Stage. This graph considers the construction stage design and compares the different SMD profile/gauges based on decking sheets being double spans (unpropped).
By cross-referencing the slab depth / span, you can then determine which profile and slab depth best suits your proposed support configuration.
Note: Your product choice may also be governed by the stud requirements for your composite beam design.
Once you have reviewed this graph you should have confirmed profile type (TR50, R51+, TR60+, TR80+ or TR220), gauge and provisional slab depth.
All tables in this design guide are based on the standard S350 grade profiles. For S450 (or S250 for TR50) guidance download Elements® Design Software from www.smdltd.co.uk.
Step 2, Product specific composite slab graphsWith the profile confirmed from Step 1, refer to the relevant page for each profile, referencing the product graphs provides the Normal and Fire stage look-up check to ensure the slab depth proposed from step 1 meets your loading and fire rating requirement. The graph shows limits for loadings of 5 & 10kN/m² and fire ratings of 1.0, 1.5 & 2.0 hours.
By referring to this graph and checking the profile / slab depth from Step 1 you can determine suitability for the required loading and fire rating using either traditional mesh reinforcement or fibre reinforced concrete - in accordance with BS EN 1994-1-1.
Should the provisional slab depth from Step 1 not be appropriate for your required loading and fire rating, go back to Step 1 and increase the slab, profile and/or deck gauge.
After this step, you should have confirmed provisional profile, gauge and slab depth to suit the required design criteria.
Step 3, Confirm required reinforcement and maximum spans for your specific design criteriaHaving determined the slab depth required in Step 2, you can now determine the required reinforcement and maximum spans for your design (for both double and single span sheets, if required) using the product, fire rating and reinforcement or fibre concrete specific load/span tables. Each design table also enables you to assess the impact of increasing reinforcement, slab depth or profile gauge for UDL loadings of 3.5kN/m², 5kN/m², 7.5kN/m² and 10kN/m².
At the end of Step 3 you will now have a confirmed profile, gauge, slab depth and mesh reinforcement or fibre concrete for your slab. It should be noted that the design tables are based on minimum code requirements and the design assumptions on page 7.
In certain situations, increased reinforcement or slab depth will be required over and above that suggested within this guide, i.e. enhanced crack control, acoustic performance etc. This guide is provided as a design tool only and the ultimate design responsibility for the reinforcement / slab depth in the final condition remains that of the project structural engineer.
Situations not covered in The White BookFor situations not covered in The White Book (i.e. isolated single span slabs or slabs subjected to concentrated point or line loads), download SMD Elements® Design Software, available at www.smdltd.co.uk.
Mesh Reinforcement Steel Fibres
TR60+ 0.9mm
TR60+ 1.0mm
TR60+ 1.2mm
TR80+ 0.9mm
TR80+ 1.0mm
TR80+ 1.2mm
100Slab Depth (mm)
Span
Len
gth
(m)
150140130120110 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
R51+ 0.9mm
R51+ 0.8mm
R51+ 1.0mm
R51+ 1.2mm
Product Span/Slab Depth Graphs
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Technical Design Table NotesThe load/span tables in this document are based on the following design assumptions.
17. Concrete volumes indicated in sectional properties are based on the slab poured to a constant thickness (recommended), additional concrete volume of span/250 m³/m² can be added to account for additional concrete as a result of deck deflection.
Reinforcement18a. All reference to traditional mesh reinforcement is based on
BS 4483.
Step 2 graphs for mesh reinforcement are based on a single layer of A393 mesh as for shallow slabs double layers of mesh may be difficult to install. It may be possible to reduce mesh at Step 3 depending on the governing design stage.
18b. All reference to fibre reinforced concrete is based on steel fibres in accordance with BS EN 14889-1 of type HE or HE++ (where indicated in the tables) with a fibre size of 1/50, available from ArcelorMittal Sheffield Ltd.
Step 2 graphs for fibre reinforced concrete are based on HE++ 1/50 fibre type at a dosage of 30kg/m³. It may be possible to reduce the fibre type and dosage at Step 3 depending on the governing design stage.
19. BS EN 1994-1-1 specifies 0.2% of the concrete above the ribs, where the mesh or fibre concrete equivalent does not meet this requirement no span value (-) is shown.
20 Top mesh cover of 22mm – Where this is not achievable due to the shallow concrete cover above the profile, no span value (**) is shown. It may be possible to achieve slab design in these situations by reducing top mesh cover or providing special mesh laps to enable nesting. For more information refer to www.smdltd.co.uk/tgn.
Fire21. Tables are provided for fire ratings of 1, 1.5 and 2 hours.
22. Where the slab depth does not provide adequate concrete cover to meet fire insulation requirement, no span value (-) is shown.
23. The Eurocode NCCI (mesh or fibre concrete only) method is used, therefore the composite slab and reinforcement (not necessarily the metal deck) must be continuous over one or more internal supports (end bay condition).
24. Load category A/B (Residential/Office) is considered where the imposed load is less than 7.5kN/m².
25. Load Category E is considered where the imposed load is 7.5kN/m² or greater.
26. All tables assume the fire insulation thickness required is achieved by utilising the structural slab thickness only. It may be possible to reduce structural slab thickness where a non-combustible screed is applied and additional bottom reinforcement provided. Elements® Design Software should be used to check such designs.
Spans1. Indicated in meters, from centre to centre of supports.
2. Based on 127mm support widths.
3. Double spans assume adjacent spans differ by no more than 15%.
4. In all cases, slabs are designed as simply-supported and in accordance with BS EN 1994-1-1 and UK NAD.
Note: In some instances the maximum single span may be greater than the maximum double span. This occurs where the composite or fire stage govern design, for single spans the concrete section is often increased due to ponding.
Loading5. FW in the design tables indicates maximum spans where
the deck is used as formwork only based on the mesh size indicated in the tables.
6. Applied loads shown in the look-up tables are un-factored, however, appropriate load factors have been taken into account in the derivation of maximum permissible spans.
7. Should include consideration for partitions, ceiling, services and finishes etc., but not self-weight of the slab as this has been included (where necessary) in the preparation of these tables.
8. Consideration should be given to any loadings that may be applied to the slab during construction (i.e. from plant or material storage), as these may be more onerous than the design loadings for the intended building use.
Construction Stage Loading9. Considers wet weight of concrete and reinforcement for the
specified slab depth.
10. Construction Imposed load of 1.5kN/m² or, 0.75kN/m² generally plus 10% slab weight or 0.75kN/m² (whichever is greater) over a 3m x 3m 'working area' in accordance with BS EN 1991-1-1.
11. Concrete volume/weight tables consider concrete only, they do not include the weight of deck or reinforcement.
Deflection12. Construction stage is limited to the lesser of Span/180 or
20mm when deflection is less than slab depth/10.
13. Limit increased to the lesser of Span/130 or 30mm, when concrete ponding is considered for deflections greater than slab depth/10. In certain design situations governed by fire, the span may be increased by considering ponding.
14. Tables do not include for any additional concrete as a result of deflection of the steel frame.
Concrete15. Typical concrete grade C25/30 with 20mm aggregate size.
16. Density in accordance with Eurocodes:
Normal Weight: 2550kg/m³ (Wet) and 2450kg/m³ (Dry)
All tables in this design guide are based on the standard S350 grade profiles. For S450 guidance download Elements® Design Software from www.smdltd.co.uk.
smdltd.co.uk8 The White Book V4
Step 1, Which Profile and Gauge?
TR60+ 0.9mm
TR60+ 1.0mm
TR60+ 1.2mm
TR80+ 0.9mm
TR80+ 1.0mm
TR80+ 1.2mm
100Slab Depth (mm)
Span
Len
gth
(m)
150140130120110 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
R51+ 0.9mm
R51+ 0.8mm
R51+ 1.0mm
R51+ 1.2mm
Construction Stage GraphUse this graph to determine which profile and gauge provides an unpropped double span solution for the slab depth and spans required.
• Flat soffit• Flexible stud
positioning
• Shuttering only• S250 & S350
See Page 12 for TR50 Formwork only
For slab depths exceeding 300mm see TR220 on Page 136
• Economical option• Enhanced speed of
installation
• Reduced concrete volume
• Crushed ends available
• Large un-propped spans >6m
• Reduces structural floor zone
(Slim Floor deep deck)
Before you start
Formwork OnlyPg.12
MeshPg.16
MeshPg.56
MeshPg.96
MeshPg.136
FibresPg.17
FibresPg.57
FibresPg.97
smdltd.co.uk 9 The White Book V4
Download
Span information at your fingertipsAvailable for Apple and Android devices
This free-to-download app is a calculation tool enabling users to run simple span checks on our range of floor deck profiles
ELEMENTS® SPAN CHECK
Elements®
Span Check
El
SMDStructural Floor and Roof Solutions www.smdltd.co.uk/app
11 TR50 Product Information and Properties12 Step 2 TR50 formwork - Which gauge?13 Step 3 TR50 formwork span tables
FLOOR DECK PROFILE Page Title
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Profile Properties
DescriptionThis profile should only be used as formwork, where the reinforcement within the slab has been designed by the structural engineer, taking no account of the metal decking.
Benefits • Formwork for non-composite RCC floor and roof slabs
• Optimised cover width for speed of installation
• Flexible side-lap detail for control of cover width
950 Cover width
317
135
50
117
Section properties are calculated assisted by testing in accordance with Eurocode 3.
Thickness mm Steel Grade N/mm2 Coatings and Options Weight Moment of Inertia cm4/m
Height of Neutral
Axis mm
Area of Steel
mm2/mNominalDesign Thickness
(bare steel) S250 S350 S450Galv
(Z275)HD
(ZM310)Plastisol
(PF)InteriorLiner
Perfo-rated
Crushed Ends kg/m2 kN/m2
0.70 0.66 - - - - - 6.82 0.07 26.20 - 848
0.80 0.76 - - - - - 7.85 0.08 31.10 - 976
0.90 0.86 - - - - - 8.88 0.09 36.90 - 1104
1.00 0.96 - - - - - 9.92 0.1 42.30 - 1233
1.20 1.16 - - - - - 11.98 0.12 55.40 - 1490
Concrete Volume and Weight
This table is based upon concrete poured to a constant thickness and does not take account of deflection of the decking or supporting beams – as a guide, to account for the deflection of the decking, a volume of span/250 should be added to the figures indicate in the Concrete Volume and Weight table. Concrete weight indicated does not include the weight of the deck profile. Overall slab depth includes deck profile
Slab Depth Volume of Concrete Weight of Concrete (Normal Weight) Weight of Concrete (Lightweight)mm m³/m² Wet (kN/m²) Dry (kN/m²) Wet (kN/m²) Dry (kN/m²)
130 0.106 2.76 2.65 2.24 2.13
150 0.126 3.28 3.15 2.66 2.53
200 0.176 4.58 4.40 3.71 3.54
Fire DesignWith TR50 being a formwork-only profile, the fire design and reinforcement required must be determined by the structural engineer designing the slab. In the table below the concrete weight is based upon concrete density of 26kN/m³ allowing for 1kN/m³ of reinforcement.
smdltd.co.uk12 The White Book V4
FOR
MW
OR
KFO
RM
WO
RK
Step 3, Formwork Only Span Tables
TR50 1.2mm
TR50 1.0mm
TR50 0.9mm
TR50 0.8mm
TR50 0.7mm
100Slab Depth (mm)
Span
Len
gth
(m)
150140130120110 160 170 180 190 200 210 220 230 240 250
2.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
1.0
1.8
1.6
1.4
1.2
4.2
Span and slab depth guidance graphWith formwork only profile determined at step 1, review the graph below to consider the gauge required for your span and slab depth specification.
Step 2, Formwork decking, Which gauge?
See Page 8 for composite floor deck profiles
Pg.13
smdltd.co.uk 13 The White Book V4
FOR
MW
OR
KFO
RM
WO
RK
FORM
WO
RK
Sing
le S
pan
110 2.045 2.300 2.480 2.664 3.019
120 1.984 2.238 2.407 2.585 2.930
130 1.922 2.172 2.354 2.515 2.850
140 1.870 2.108 2.288 2.449 2.781
150 1.819 2.053 2.230 2.387 2.715
160 1.773 2.002 2.176 2.331 2.657
170 1.695 1.953 2.126 2.281 2.600
180 1.624 1.910 2.083 2.230 2.546
190 1.554 1.870 2.041 2.188 2.492
200 1.492 1.831 2.004 2.141 2.445
210 1.430 1.796 1.969 2.104 2.399
220 1.375 1.726 1.938 2.065 2.358
230 1.327 1.664 1.907 2.030 2.319
240 1.281 1.608 1.875 1.996 2.281
250 1.242 1.554 1.843 1.961 2.242
FORM
WO
RK
Doub
le S
pan
110 1.835 2.125 2.414 2.664 3.164
120 1.742 2.022 2.296 2.546 3.023
130 1.664 1.930 2.195 2.438 2.899
140 1.593 1.850 2.108 2.335 2.781
150 1.527 1.777 2.026 2.250 2.680
160 1.469 1.711 1.953 2.168 2.593
170 1.414 1.649 1.883 2.093 2.507
180 1.366 1.593 1.819 2.026 2.426
190 1.319 1.542 1.765 1.961 2.350
200 1.277 1.492 1.711 1.907 2.288
210 1.242 1.449 1.660 1.850 2.226
220 1.203 1.407 1.616 1.800 2.164
230 1.172 1.370 1.573 1.753 2.108
240 1.137 1.331 1.531 1.711 2.061
250 1.108 1.300 1.492 1.668 2.010
0.7mm 0.8mm 0.9mm 1.0mm 1.2mmDeck Span
SlabDepth FW FW FW FW FW
Table shows Gauge / FW = Formwork / Maximum Permissible Span (m)
FLOOR DECK PROFILE
15 R51+ Product Information and Properties16 Step 2 R51+ Composite Slab Graph (Mesh)17 Step 2 R51+ Composite Slab Graph (Steel Fibres)18 Step 3 R51+ 1.0 Hour fire rating (Mesh)24 Step 3 R51+ 1.5 Hour fire rating (Mesh)30 Step 3 R51+ 2.0 Hour fire rating (Mesh)36 Step 3 R51+ 1.0 Hour fire rating (Steel Fibres)42 Step 3 R51+ 1.5 Hour fire rating (Steel Fibres)48 Step 3 R51+ 2.0 Hour fire rating (Steel Fibres)
Page Title
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Profile Properties
Section properties are calculated assisted by testing in accordance with Eurocode 3.
Thickness mm Steel Grade N/mm2 Coatings and Options Weight Moment of Inertia cm4/m
Height of Neutral
Axis mm
Area of Steel
mm2/mNominalDesign Thickness
(bare steel) S250 S350 S450Galv
(Z275)HD
(ZM310)Plastisol
(PF)InteriorLiner
Perfo-rated
Crushed Ends kg/m2 kN/m2
0.80 0.76 - - - - - - 12.02 0.118 56.90 15.80 1464
0.90 0.86 - - - - - 13.54 0.133 61.27 16.20 1657
1.00 0.96 - - - - - 15.01 0.147 68.73 16.50 1845
1.20 1.16 - - - - - 17.98 0.176 85.60 17.00 2223
DescriptionUpdated from the original R51 product in 2018, this profile is available in S350 and S450 grades to provide the designer greater flexibility. R51+ is a traditional re-entrant profile commonly used on inner city multi-storey projects, where the structural zone and storey height is reduced, due to the relatively thin slab depth required to achieve a typical one hour fire rating.
Benefits • 102mm minimum slab depth
• Optimised to maximise structural efficiency of steel
• 150mm trough spacings provide flexibility for stud placement
52
600 Cover Width
15040
137
Concrete Volume and Weight
Fire Insulation ThicknessMinimum Insulation Thickness (x) of Concrete (mm)
Deflection – This table is based on concrete poured to a constant thickness and does not take account for deflection of the decking or supporting beams (as a guide, to account for the deflection of the decking, a concrete volume of span/250 should be added to the figures indicated). Concrete Weight – These tables indicate concrete weight only and do not include the weight of decking or reinforcement. Concrete weights are based on the concrete densities specified in BS EN 1991-1-1 as follows: Normal Weight Concrete – 2550kg/m³ (wet) and 2450 kg/m³ (dry). Lightweight Concrete – 2050kg/m³ (wet) and 1950 kg/m³ (dry).
The image and table above details the minimum insulation thickness required to suit fire design criteria in accordance with SCI PN005c-GB or BS5950 Part 8.
Fire Rating NWC LWC
1.0 Hour 100 100
1.5 Hour 110 105
2.0 Hour 125 115
3.0 Hour 150 135
4.0 Hour 170 150
Slab Depth Volume of Concrete Weight of Concrete (Normal Weight) Weight of Concrete (Lightweight)mm m³/m² Wet (kN/m²) Dry (kN/m²) Wet (kN/m²) Dry (kN/m²)
130 0.121 2.85 2.79 2.26 2.14
150 0.141 3.32 3.25 2.63 2.49
200 0.191 4.50 4.40 3.56 3.37
smdltd.co.uk16 The White Book V4
1.0 Hr Fire Rating
Slab Depth (mm)
Span
Len
gth
(m)
150140130120110 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on A393 mesh. It may be possible to reduce mesh size by referencing load/span tables during Step 3.
Construction Stage
R51+ 0.9mm
R51+ 0.8mm
R51+ 1.0mm
R51+ 1.2mm
Min
for
1.5h
r Fi
re
Min
for
2hr
Fire
10kN
10kN
7.5kN
7.5k
N
1hr Fire 1.5hr Fire 2hr Fire
1hr
10kN
Span and slab depth guidance graphWith proposed profile and gauge determined at step 1 on page 5, review the graph below to consider whether Load and Fire rating govern the design. Construction stage governs (shown dashed) except where solid lines representing the different Load/Fire limits are shown.
Step 2, Composite slab graph
A142Pg.18
A142Pg.24
A142Pg.30
A193Pg.19
A193Pg.25
A193Pg.31
2xA252Pg.22
2xA252Pg.28
2xA252Pg.34
A252Pg.20
A252Pg.26
A252Pg.32
2xA393Pg.23
2xA393Pg.29
2xA393Pg.35
A393Pg.21
A393Pg.27
A393Pg.33
*
MES
H R
EIN
FOR
CEM
ENT
MESH REINFORCEMENT
Step 3, Refer to the pages below for spans
1.5 Hr Fire Rating 2.0 Hr Fire Rating
* Refer to Note 13 on Page 7
SLAB
GR
APH
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1.0 Hr Fire Rating
Slab Depth (mm)
Span
Len
gth
(m)
150140130120110 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on 30kg/m3≥ HE++ 1/50 Fibres. It may be possible to change fibre type and/or reduce the dosage by referencing load/span tables during Step 3.
Construction Stage
R51+ 0.9mm
R51+ 0.8mm
R51+ 1.0mm
R51+ 1.2mm
Min
for
1.5h
r Fi
re
Min
for
2hr
Fire
10kN
10kN
7.5kN
10kN
7.5kN
1hr Fire 1.5hr Fire 2hr Fire
Span and slab depth guidance graphWith proposed profile and gauge determined at step 1 on page 5, review the graph below to consider whether Load and Fire rating govern the design. Construction stage governs (shown dashed) except where solid lines representing the different Load/Fire limits are shown.
Step 2, Composite slab graph
HE++ 20kgPg.39
HE++ 20kgPg.45
HE++ 20kgPg.51
HE 25kgPg.36
HE 25kgPg.42
HE 25kgPg.48
HE++ 25kgPg.40
HE++ 25kgPg.46
HE++ 25kgPg.52
HE 30kgPg.37
HE 30kgPg.43
HE 30kgPg.49
HE++ 30kgPg.41
HE++ 30kgPg.47
HE++ 30kgPg.53
HE 35kgPg.38
HE 35kgPg.44
HE 35kgPg.50
FIB
RE
CO
NC
RET
E
STEEL FIBRE CONCRETE
Step 3, Refer to the pages below for spans
1.5 Hr Fire Rating 2.0 Hr Fire Rating
SLAB
GR
APH
smdltd.co.uk18 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.046 3.046 3.046 2.953 3.319 3.319 3.319 3.108
120 2.553 2.553 2.553 2.553 2.777 2.777 2.777 2.777 2.969 2.969 2.969 2.969 3.238 3.238 3.238 3.238
130 - - - - - - - - - - - - - - - -
140 - - - - - - - - - - - - - - - -
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A142
Doub
le S
pan
110 3.062 3.062 2.875 2.596 3.281 3.281 2.969 2.680 3.507 3.507 3.054 2.757 3.938 3.938 3.219 2.899
120 2.976 2.976 2.969 2.688 3.216 3.216 3.069 2.773 3.422 3.422 3.157 2.854 3.835 3.835 3.327 3.007
130 - - - - - - - - - - - - - - - -
140 - - - - - - - - - - - - - - - -
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A142
1.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 19 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.042 3.042 3.042 3.042 3.315 3.315 3.315 3.234
120 2.552 2.552 2.552 2.552 2.773 2.773 2.773 2.773 2.965 2.965 2.965 2.965 3.234 3.234 3.234 3.234
130 2.534 2.534 2.534 2.534 2.707 2.707 2.707 2.707 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.160
140 2.469 2.469 2.469 2.469 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A193
Doub
le S
pan
110 3.062 3.062 2.945 2.660 3.281 3.281 3.031 2.738 3.507 3.507 3.116 2.812 3.930 3.930 3.273 2.953
120 2.969 2.969 2.969 2.804 3.214 3.214 3.188 2.883 3.414 3.414 3.414 2.961 3.835 3.835 3.633 3.108
130 2.891 2.891 2.891 2.891 3.180 3.180 3.180 3.015 3.335 3.335 3.335 3.093 3.742 3.742 3.742 3.250
140 2.819 2.819 2.819 2.819 3.100 3.100 3.100 3.089 3.300 3.300 3.300 3.172 3.649 3.649 3.649 3.335
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A193
1.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk20 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.550 2.550 2.550 2.550 2.773 2.773 2.773 2.773 2.961 2.961 2.961 2.961 3.230 3.230 3.230 3.230
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.157 3.157 3.157 3.157
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.970 2.970 2.970 2.970
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.922 2.922 2.922 2.922
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A252
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.969 2.969 2.969 2.866 3.212 3.212 3.212 2.945 3.414 3.414 3.414 3.015 3.827 3.827 3.750 3.157
130 2.891 2.891 2.891 2.891 3.172 3.172 3.172 3.085 3.327 3.327 3.327 3.164 3.734 3.734 3.734 3.312
140 2.819 2.819 2.819 2.819 3.093 3.093 3.093 3.093 3.298 3.298 3.298 3.298 3.649 3.649 3.649 3.649
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.242 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 2.626 2.626 2.626 2.626 2.887 2.887 2.887 2.887 3.100 3.100 3.100 3.100 3.472 3.472 3.472 3.472
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A252
1.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 21 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.545 2.545 2.545 2.545 2.765 2.765 2.765 2.765 2.953 2.953 2.953 2.953 3.226 3.226 3.226 3.226
130 2.527 2.527 2.527 2.527 2.703 2.703 2.703 2.703 2.883 2.883 2.883 2.883 3.153 3.153 3.153 3.153
140 2.465 2.465 2.465 2.465 2.637 2.637 2.637 2.637 2.819 2.819 2.819 2.819 3.085 3.085 3.085 3.085
150 2.407 2.407 2.407 2.407 2.577 2.577 2.577 2.577 2.757 2.757 2.757 2.757 3.027 3.027 3.027 3.027
160 2.350 2.350 2.350 2.350 2.523 2.523 2.523 2.523 2.703 2.703 2.703 2.703 2.969 2.969 2.969 2.969
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.253 2.253 2.253 2.253 2.426 2.426 2.426 2.426 2.596 2.596 2.596 2.596 2.866 2.866 2.866 2.866
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.546 2.546 2.546 2.546 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.053 2.053 2.053 2.053 2.226 2.226 2.226 2.226 2.383 2.383 2.383 2.383 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.633 2.633 2.633 2.633
250 - - - - - - - - - - - - - - - -
A393
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.969 2.969 2.969 2.969 3.206 3.206 3.206 3.062 3.407 3.407 3.407 3.133 3.827 3.827 3.827 3.500
130 2.887 2.887 2.887 2.887 3.172 3.172 3.172 3.172 3.327 3.327 3.327 3.327 3.734 3.734 3.734 3.719
140 2.812 2.812 2.812 2.812 3.093 3.093 3.093 3.093 3.293 3.293 3.293 3.293 3.649 3.649 3.649 3.649
150 2.746 2.746 2.746 2.746 3.015 3.015 3.015 3.015 3.242 3.242 3.242 3.242 3.562 3.562 3.562 3.562
160 2.684 2.684 2.684 2.684 2.945 2.945 2.945 2.945 3.164 3.164 3.164 3.164 3.492 3.492 3.492 3.492
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.468 3.468 3.468 3.468
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.519 2.519 2.519 2.519 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.569 2.569 2.569 2.569 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.304 2.304 2.304 2.304 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 - - - - - - - - - - - - - - - -
A393
1.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk22 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 2.523 2.523 2.523 2.523 2.695 2.695 2.695 2.695 2.883 2.883 2.883 2.883 3.149 3.149 3.149 3.149
140 2.461 2.461 2.461 2.461 2.633 2.633 2.633 2.633 2.815 2.815 2.815 2.815 3.081 3.081 3.081 3.081
150 2.403 2.403 2.403 2.403 2.577 2.577 2.577 2.577 2.757 2.757 2.757 2.757 3.023 3.023 3.023 3.023
160 2.350 2.350 2.350 2.350 2.523 2.523 2.523 2.523 2.695 2.695 2.695 2.695 2.965 2.965 2.965 2.965
170 2.296 2.296 2.296 2.296 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.914 2.914 2.914 2.914
180 2.250 2.250 2.250 2.250 2.420 2.420 2.420 2.420 2.593 2.593 2.593 2.593 2.866 2.866 2.866 2.866
190 2.207 2.207 2.207 2.207 2.379 2.379 2.379 2.379 2.546 2.546 2.546 2.546 2.819 2.819 2.819 2.819
200 2.164 2.164 2.164 2.164 2.335 2.335 2.335 2.335 2.500 2.500 2.500 2.500 2.777 2.777 2.777 2.777
210 2.125 2.125 2.125 2.125 2.296 2.296 2.296 2.296 2.457 2.457 2.457 2.457 2.738 2.738 2.738 2.738
220 2.089 2.089 2.089 2.089 2.257 2.257 2.257 2.257 2.418 2.418 2.418 2.418 2.699 2.699 2.699 2.699
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.379 2.379 2.379 2.379 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.153 2.153 2.153 2.153 2.308 2.308 2.308 2.308 2.593 2.593 2.593 2.593
2xA2
52
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 2.883 2.883 2.883 2.883 3.164 3.164 3.164 3.164 3.319 3.319 3.319 3.319 3.726 3.726 3.726 3.726
140 2.812 2.812 2.812 2.812 3.085 3.085 3.085 3.085 3.289 3.289 3.289 3.289 3.641 3.641 3.641 3.641
150 2.742 2.742 2.742 2.742 3.015 3.015 3.015 3.015 3.234 3.234 3.234 3.234 3.562 3.562 3.562 3.562
160 2.680 2.680 2.680 2.680 2.945 2.945 2.945 2.945 3.164 3.164 3.164 3.164 3.484 3.484 3.484 3.484
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.093 3.093 3.093 3.093 3.464 3.464 3.464 3.464
180 2.569 2.569 2.569 2.569 2.819 2.819 2.819 2.819 3.031 3.031 3.031 3.031 3.422 3.422 3.422 3.422
190 2.515 2.515 2.515 2.515 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.422 2.422 2.422 2.422 2.664 2.664 2.664 2.664 2.858 2.858 2.858 2.858 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.808 2.808 2.808 2.808 3.172 3.172 3.172 3.172
230 2.339 2.339 2.339 2.339 2.569 2.569 2.569 2.569 2.757 2.757 2.757 2.757 3.120 3.120 3.120 3.120
240 2.300 2.300 2.300 2.300 2.527 2.527 2.527 2.527 2.715 2.715 2.715 2.715 3.069 3.069 3.069 3.069
250 2.261 2.261 2.261 2.261 2.488 2.488 2.488 2.488 2.672 2.672 2.672 2.672 3.019 3.019 3.019 3.019
2xA2
52
1.
0 H
r Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 23 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
140 2.453 2.453 2.453 2.453 2.625 2.625 2.625 2.625 2.804 2.804 2.804 2.804 3.069 3.069 3.069 3.069
150 2.395 2.395 2.395 2.395 2.569 2.569 2.569 2.569 2.746 2.746 2.746 2.746 3.011 3.011 3.011 3.011
160 2.343 2.343 2.343 2.343 2.515 2.515 2.515 2.515 2.688 2.688 2.688 2.688 2.957 2.957 2.957 2.957
170 2.292 2.292 2.292 2.292 2.465 2.465 2.465 2.465 2.633 2.633 2.633 2.633 2.903 2.903 2.903 2.903
180 2.242 2.242 2.242 2.242 2.418 2.418 2.418 2.418 2.585 2.585 2.585 2.585 2.858 2.858 2.858 2.858
190 2.199 2.199 2.199 2.199 2.374 2.374 2.374 2.374 2.538 2.538 2.538 2.538 2.812 2.812 2.812 2.812
200 2.157 2.157 2.157 2.157 2.331 2.331 2.331 2.331 2.490 2.490 2.490 2.490 2.769 2.769 2.769 2.769
210 2.120 2.120 2.120 2.120 2.288 2.288 2.288 2.288 2.453 2.453 2.453 2.453 2.730 2.730 2.730 2.730
220 2.085 2.085 2.085 2.085 2.250 2.250 2.250 2.250 2.414 2.414 2.414 2.414 2.691 2.691 2.691 2.691
230 2.049 2.049 2.049 2.049 2.215 2.215 2.215 2.215 2.375 2.375 2.375 2.375 2.657 2.657 2.657 2.657
240 2.014 2.014 2.014 2.014 2.180 2.180 2.180 2.180 2.335 2.335 2.335 2.335 2.625 2.625 2.625 2.625
250 1.984 1.984 1.984 1.984 2.149 2.149 2.149 2.149 2.304 2.304 2.304 2.304 2.585 2.585 2.585 2.585
2xA3
93
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
140 2.804 2.804 2.804 2.804 3.077 3.077 3.077 3.077 3.279 3.279 3.279 3.279 3.633 3.633 3.633 3.633
150 2.734 2.734 2.734 2.734 3.007 3.007 3.007 3.007 3.226 3.226 3.226 3.226 3.554 3.554 3.554 3.554
160 2.672 2.672 2.672 2.672 2.938 2.938 2.938 2.938 3.157 3.157 3.157 3.157 3.476 3.476 3.476 3.476
170 2.616 2.616 2.616 2.616 2.875 2.875 2.875 2.875 3.085 3.085 3.085 3.085 3.456 3.456 3.456 3.456
180 2.562 2.562 2.562 2.562 2.812 2.812 2.812 2.812 3.023 3.023 3.023 3.023 3.414 3.414 3.414 3.414
190 2.511 2.511 2.511 2.511 2.757 2.757 2.757 2.757 2.961 2.961 2.961 2.961 3.350 3.350 3.350 3.350
200 2.461 2.461 2.461 2.461 2.703 2.703 2.703 2.703 2.907 2.907 2.907 2.907 3.288 3.288 3.288 3.288
210 2.418 2.418 2.418 2.418 2.657 2.657 2.657 2.657 2.850 2.850 2.850 2.850 3.226 3.226 3.226 3.226
220 2.375 2.375 2.375 2.375 2.608 2.608 2.608 2.608 2.804 2.804 2.804 2.804 3.168 3.168 3.168 3.168
230 2.335 2.335 2.335 2.335 2.562 2.562 2.562 2.562 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
240 2.294 2.294 2.294 2.294 2.523 2.523 2.523 2.523 2.711 2.711 2.711 2.711 3.062 3.062 3.062 3.062
250 2.255 2.255 2.255 2.255 2.484 2.484 2.484 2.484 2.664 2.664 2.664 2.664 3.015 3.015 3.015 3.015
2xA3
93
1.
0 H
r
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk24 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 2.616 2.616 2.327 2.100 2.850 2.850 2.395 2.164 3.046 3.046 2.461 2.226 3.319 3.319 2.585 2.335
120 2.553 2.553 2.422 2.191 2.777 2.777 2.492 2.257 2.969 2.969 2.562 2.319 3.238 3.238 2.695 2.438
130 - - - - - - - - - - - - - - - -
140 - - - - - - - - - - - - - - - -
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A142
Doub
le S
pan
110 3.062 3.062 2.327 2.100 3.281 3.281 2.395 2.164 3.507 3.484 2.461 2.226 3.938 3.649 2.585 2.335
120 2.976 2.976 2.422 2.191 3.216 3.216 2.492 2.257 3.422 3.422 2.562 2.319 3.835 3.796 2.695 2.438
130 - - - - - - - - - - - - - - - -
140 - - - - - - - - - - - - - - - -
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A142
1.5
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 25 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 2.616 2.616 2.422 2.188 2.850 2.850 2.484 2.246 3.042 3.042 2.546 2.300 3.315 3.315 2.664 2.407
120 2.552 2.552 2.511 2.273 2.773 2.773 2.773 2.335 2.965 2.965 2.883 2.391 3.234 3.234 2.992 2.507
130 2.534 2.534 2.534 2.362 2.707 2.707 2.707 2.430 2.891 2.891 2.891 2.488 3.160 3.160 3.157 2.608
140 2.469 2.469 2.469 2.457 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.781 3.093 3.093 3.093 2.711
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A193
Doub
le S
pan
110 3.062 3.062 2.422 2.188 3.281 3.281 2.484 2.246 3.507 3.507 2.546 2.300 3.930 3.858 2.664 2.407
120 2.969 2.969 2.511 2.273 3.214 3.214 2.577 2.335 3.414 3.414 2.645 2.391 3.835 3.835 2.765 2.507
130 2.891 2.891 2.608 2.362 3.180 3.180 2.676 2.430 3.335 3.335 2.742 2.488 3.742 3.742 2.875 2.608
140 2.819 2.819 2.703 2.457 3.100 3.100 2.781 2.523 3.300 3.300 2.850 2.589 3.649 3.649 2.984 2.711
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A193
1.5
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk26 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.550 2.550 2.550 2.358 2.773 2.773 2.773 2.414 2.961 2.961 2.961 2.469 3.230 3.230 3.203 2.577
130 2.531 2.531 2.531 2.441 2.703 2.703 2.703 2.500 2.891 2.891 2.891 2.796 3.157 3.157 3.157 2.672
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.046
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.970 2.970 2.970 2.970
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.922 2.922 2.922 2.922
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A252
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.969 2.969 2.604 2.358 3.212 3.212 2.668 2.414 3.414 3.414 2.730 2.469 3.827 3.827 2.843 2.577
130 2.891 2.891 2.695 2.441 3.172 3.172 2.757 2.500 3.327 3.327 2.827 2.562 3.734 3.734 2.945 2.672
140 2.819 2.819 2.788 2.531 3.093 3.093 2.858 2.596 3.298 3.298 2.922 2.657 3.649 3.649 3.054 2.773
150 2.750 2.750 2.750 2.633 3.023 3.023 2.965 2.695 3.242 3.242 3.031 2.757 3.569 3.569 3.164 2.883
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.804 3.172 3.172 3.149 2.870 3.492 3.492 3.281 2.992
170 2.626 2.626 2.626 2.626 2.887 2.887 2.887 2.887 3.100 3.100 3.100 2.976 3.472 3.472 3.399 3.100
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A252
1.5
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 27 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.545 2.545 2.545 2.527 2.765 2.765 2.765 2.765 2.953 2.953 2.953 2.953 3.226 3.226 3.226 3.108
130 2.527 2.527 2.527 2.527 2.703 2.703 2.703 2.703 2.883 2.883 2.883 2.883 3.153 3.153 3.153 3.153
140 2.465 2.465 2.465 2.465 2.637 2.637 2.637 2.637 2.819 2.819 2.819 2.819 3.085 3.085 3.085 3.085
150 2.407 2.407 2.407 2.407 2.577 2.577 2.577 2.577 2.757 2.757 2.757 2.757 3.027 3.027 3.027 3.027
160 2.350 2.350 2.350 2.350 2.523 2.523 2.523 2.523 2.703 2.703 2.703 2.703 2.969 2.969 2.969 2.969
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.253 2.253 2.253 2.253 2.426 2.426 2.426 2.426 2.596 2.596 2.596 2.596 2.866 2.866 2.866 2.866
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.546 2.546 2.546 2.546 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.053 2.053 2.053 2.053 2.226 2.226 2.226 2.226 2.383 2.383 2.383 2.383 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.633 2.633 2.633 2.633
250 - - - - - - - - - - - - - - - -
A393
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 2.969 2.969 2.792 2.527 3.206 3.206 2.850 2.577 3.407 3.407 2.899 2.625 3.827 3.827 3.007 2.719
130 2.887 2.887 2.875 2.604 3.172 3.172 2.930 2.657 3.327 3.327 2.992 2.711 3.734 3.734 3.100 2.812
140 2.812 2.812 2.812 2.688 3.093 3.093 3.023 2.742 3.293 3.293 3.085 2.800 3.649 3.649 3.195 2.907
150 2.746 2.746 2.746 2.746 3.015 3.015 3.015 2.839 3.242 3.242 3.180 2.895 3.562 3.562 3.562 3.007
160 2.684 2.684 2.684 2.684 2.945 2.945 2.945 2.938 3.164 3.164 3.164 3.000 3.492 3.492 3.492 3.108
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.093 3.468 3.468 3.468 3.211
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.304
190 2.519 2.519 2.519 2.519 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.569 2.569 2.569 2.569 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.304 2.304 2.304 2.304 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 - - - - - - - - - - - - - - - -
A393
1.5
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk28 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 2.523 2.523 2.523 2.523 2.695 2.695 2.695 2.695 2.883 2.883 2.883 2.883 3.149 3.149 3.149 3.149
140 2.461 2.461 2.461 2.461 2.633 2.633 2.633 2.633 2.815 2.815 2.815 2.815 3.081 3.081 3.081 3.081
150 2.403 2.403 2.403 2.403 2.577 2.577 2.577 2.577 2.757 2.757 2.757 2.757 3.023 3.023 3.023 3.023
160 2.350 2.350 2.350 2.350 2.523 2.523 2.523 2.523 2.695 2.695 2.695 2.695 2.965 2.965 2.965 2.965
170 2.296 2.296 2.296 2.296 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.914 2.914 2.914 2.914
180 2.250 2.250 2.250 2.250 2.376 2.376 2.376 2.376 2.593 2.593 2.593 2.593 2.866 2.866 2.866 2.866
190 2.207 2.207 2.207 2.207 2.379 2.379 2.379 2.379 2.546 2.546 2.546 2.546 2.819 2.819 2.819 2.819
200 2.164 2.164 2.164 2.164 2.335 2.335 2.335 2.335 2.500 2.500 2.500 2.500 2.777 2.777 2.777 2.777
210 2.125 2.125 2.125 2.125 2.296 2.296 2.296 2.296 2.457 2.457 2.457 2.457 2.738 2.738 2.738 2.738
220 2.089 2.089 2.089 2.089 2.257 2.257 2.257 2.257 2.418 2.418 2.418 2.418 2.699 2.699 2.699 2.699
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.379 2.379 2.379 2.379 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.153 2.153 2.153 2.153 2.308 2.308 2.308 2.308 2.593 2.593 2.593 2.593
2xA2
52
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 2.883 2.883 2.883 2.875 3.164 3.164 3.164 2.922 3.319 3.319 3.319 2.969 3.726 3.726 3.726 3.054
140 2.812 2.812 2.812 2.812 3.085 3.085 3.085 2.984 3.289 3.289 3.289 3.038 3.641 3.641 3.641 3.125
150 2.742 2.742 2.742 2.742 3.015 3.015 3.015 3.015 3.234 3.234 3.234 3.116 3.562 3.562 3.562 3.531
160 2.680 2.680 2.680 2.680 2.945 2.945 2.945 2.945 3.164 3.164 3.164 3.164 3.484 3.484 3.484 3.304
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.093 3.093 3.093 3.093 3.464 3.464 3.464 3.383
180 2.569 2.569 2.569 2.569 2.819 2.819 2.819 2.819 3.031 3.031 3.031 3.031 3.422 3.422 3.422 3.422
190 2.515 2.515 2.515 2.515 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.422 2.422 2.422 2.422 2.664 2.664 2.664 2.664 2.858 2.858 2.858 2.858 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.808 2.808 2.808 2.808 3.172 3.172 3.172 3.172
230 2.339 2.339 2.339 2.339 2.569 2.569 2.569 2.569 2.757 2.757 2.757 2.757 3.120 3.120 3.120 3.120
240 2.300 2.300 2.300 2.300 2.527 2.527 2.527 2.527 2.715 2.715 2.715 2.715 3.069 3.069 3.069 3.069
250 2.261 2.261 2.261 2.261 2.488 2.488 2.488 2.488 2.672 2.672 2.672 2.672 3.019 3.019 3.019 3.019
2xA2
52
1.
5 H
r Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 29 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
140 2.453 2.453 2.453 2.453 2.625 2.625 2.625 2.625 2.804 2.804 2.804 2.804 3.069 3.069 3.069 3.069
150 2.395 2.395 2.395 2.395 2.569 2.569 2.569 2.569 2.746 2.746 2.746 2.746 3.011 3.011 3.011 3.011
160 2.343 2.343 2.343 2.343 2.515 2.515 2.515 2.515 2.688 2.688 2.688 2.688 2.957 2.957 2.957 2.957
170 2.292 2.292 2.292 2.292 2.465 2.465 2.465 2.465 2.633 2.633 2.633 2.633 2.903 2.903 2.903 2.903
180 2.242 2.242 2.242 2.242 2.418 2.418 2.418 2.418 2.585 2.585 2.585 2.585 2.858 2.858 2.858 2.858
190 2.199 2.199 2.199 2.199 2.374 2.374 2.374 2.374 2.538 2.538 2.538 2.538 2.812 2.812 2.812 2.812
200 2.157 2.157 2.157 2.157 2.331 2.331 2.331 2.331 2.490 2.490 2.490 2.490 2.769 2.769 2.769 2.769
210 2.120 2.120 2.120 2.120 2.288 2.288 2.288 2.288 2.453 2.453 2.453 2.453 2.730 2.730 2.730 2.730
220 2.085 2.085 2.085 2.085 2.250 2.250 2.250 2.250 2.414 2.414 2.414 2.414 2.691 2.691 2.691 2.691
230 2.049 2.049 2.049 2.049 2.215 2.215 2.215 2.215 2.375 2.375 2.375 2.375 2.657 2.657 2.657 2.657
240 2.014 2.014 2.014 2.014 2.180 2.180 2.180 2.180 2.335 2.335 2.335 2.335 2.625 2.625 2.625 2.625
250 1.984 1.984 1.984 1.984 2.149 2.149 2.149 2.149 2.304 2.304 2.304 2.304 2.585 2.585 2.585 2.585
2xA3
93
Doub
le S
pan
110 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
120 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
130 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
140 2.804 2.804 2.804 2.804 3.077 3.077 3.077 3.077 3.279 3.279 3.279 3.279 3.633 3.633 3.633 3.633
150 2.734 2.734 2.734 2.734 3.007 3.007 3.007 3.007 3.226 3.226 3.226 3.226 3.554 3.554 3.554 3.554
160 2.672 2.672 2.672 2.672 2.938 2.938 2.938 2.938 3.157 3.157 3.157 3.157 3.476 3.476 3.476 3.476
170 2.616 2.616 2.616 2.616 2.875 2.875 2.875 2.875 3.085 3.085 3.085 3.085 3.456 3.456 3.456 3.456
180 2.562 2.562 2.562 2.562 2.812 2.812 2.812 2.812 3.023 3.023 3.023 3.023 3.414 3.414 3.414 3.414
190 2.511 2.511 2.511 2.511 2.757 2.757 2.757 2.757 2.961 2.961 2.961 2.961 3.350 3.350 3.350 3.350
200 2.461 2.461 2.461 2.461 2.703 2.703 2.703 2.703 2.907 2.907 2.907 2.907 3.288 3.288 3.288 3.288
210 2.418 2.418 2.418 2.418 2.657 2.657 2.657 2.657 2.850 2.850 2.850 2.850 3.226 3.226 3.226 3.226
220 2.375 2.375 2.375 2.375 2.608 2.608 2.608 2.608 2.804 2.804 2.804 2.804 3.168 3.168 3.168 3.168
230 2.335 2.335 2.335 2.335 2.562 2.562 2.562 2.562 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
240 2.294 2.294 2.294 2.294 2.523 2.523 2.523 2.523 2.711 2.711 2.711 2.711 3.062 3.062 3.062 3.062
250 2.255 2.255 2.255 2.255 2.484 2.484 2.484 2.484 2.664 2.664 2.664 2.664 3.015 3.015 3.015 3.015
2xA3
93
1.
5 H
r
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk30 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 - - - - - - - - - - - - - - - -
140 - - - - - - - - - - - - - - - -
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 - - - - - - - - - - - - - - - -
140 - - - - - - - - - - - - - - - -
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A142
2.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 31 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.534 2.534 2.370 2.149 2.707 2.707 2.430 2.203 2.891 2.891 2.488 2.257 3.160 3.160 2.596 2.358
140 2.469 2.469 2.445 2.226 2.645 2.645 2.645 2.281 2.827 2.827 2.788 2.335 3.093 3.093 2.680 2.438
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.370 2.149 3.180 3.180 2.430 2.203 3.335 3.335 2.488 2.257 3.742 3.657 2.596 2.358
140 2.819 2.819 2.445 2.226 3.100 3.100 2.507 2.281 3.300 3.300 2.569 2.335 3.649 3.649 2.680 2.438
150 - - - - - - - - - - - - - - - -
160 - - - - - - - - - - - - - - - -
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A193
2.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk32 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.531 2.531 2.469 2.242 2.703 2.703 2.703 2.292 2.891 2.891 2.875 2.339 3.157 3.157 2.680 2.434
140 2.469 2.469 2.469 2.308 2.641 2.641 2.641 2.362 2.827 2.827 2.827 2.414 3.093 3.093 3.077 2.511
150 2.410 2.410 2.410 2.383 2.585 2.585 2.585 2.438 2.765 2.765 2.765 2.492 3.031 3.031 3.031 2.593
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.970 2.970 2.970 2.970
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.922 2.922 2.922 2.922
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.469 2.242 3.172 3.172 2.523 2.292 3.327 3.327 2.577 2.339 3.734 3.734 2.680 2.434
140 2.819 2.819 2.538 2.308 3.093 3.093 2.600 2.362 3.298 3.298 2.657 2.414 3.649 3.649 2.765 2.511
150 2.750 2.750 2.620 2.383 3.023 3.023 2.680 2.438 3.242 3.242 2.738 2.492 3.569 3.569 2.850 2.593
160 2.688 2.688 2.688 2.469 2.953 2.953 2.765 2.523 3.172 3.172 2.827 2.577 3.492 3.492 2.938 2.680
170 2.626 2.626 2.626 2.554 2.887 2.887 2.858 2.608 3.100 3.100 2.922 2.668 3.472 3.472 3.038 2.773
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
A252
2.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 33 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.527 2.527 2.527 2.422 2.703 2.703 2.703 2.465 2.883 2.883 2.883 2.875 3.153 3.153 3.153 2.593
140 2.465 2.465 2.465 2.465 2.637 2.637 2.637 2.637 2.819 2.819 2.819 2.819 3.085 3.085 3.085 3.046
150 2.407 2.407 2.407 2.407 2.577 2.577 2.577 2.577 2.757 2.757 2.757 2.757 3.027 3.027 3.027 3.027
160 2.350 2.350 2.350 2.350 2.523 2.523 2.523 2.523 2.703 2.703 2.703 2.703 2.969 2.969 2.969 2.969
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.253 2.253 2.253 2.253 2.426 2.426 2.426 2.426 2.596 2.596 2.596 2.596 2.866 2.866 2.866 2.866
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.546 2.546 2.546 2.546 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.053 2.053 2.053 2.053 2.226 2.226 2.226 2.226 2.383 2.383 2.383 2.383 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.633 2.633 2.633 2.633
250 - - - - - - - - - - - - - - - -
A393
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.887 2.887 2.672 2.422 3.172 3.172 2.719 2.465 3.327 3.327 2.765 2.507 3.734 3.734 2.858 2.593
140 2.812 2.812 2.734 2.484 3.093 3.093 2.788 2.531 3.293 3.293 2.835 2.577 3.649 3.649 2.930 2.664
150 2.746 2.746 2.746 2.554 3.015 3.015 2.858 2.600 3.242 3.242 2.907 2.649 3.562 3.562 3.007 2.738
160 2.684 2.684 2.684 2.625 2.945 2.945 2.938 2.680 3.164 3.164 2.992 2.726 3.492 3.492 3.093 2.819
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.757 3.100 3.100 3.077 2.808 3.468 3.468 3.180 2.907
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 2.891 3.430 3.430 3.273 2.992
190 2.519 2.519 2.519 2.519 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.350 3.073
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.153
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.569 2.569 2.569 2.569 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.304 2.304 2.304 2.304 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 - - - - - - - - - - - - - - - -
A393
2.0
Hr
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk34 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.523 2.523 2.523 2.523 2.695 2.695 2.695 2.695 2.883 2.883 2.883 2.883 3.149 3.149 3.149 3.149
140 2.461 2.461 2.461 2.461 2.633 2.633 2.633 2.633 2.815 2.815 2.815 2.815 3.081 3.081 3.081 3.081
150 2.403 2.403 2.403 2.403 2.577 2.577 2.577 2.577 2.757 2.757 2.757 2.757 3.023 3.023 3.023 3.023
160 2.350 2.350 2.350 2.350 2.523 2.523 2.523 2.523 2.695 2.695 2.695 2.695 2.965 2.965 2.965 2.965
170 2.296 2.296 2.296 2.296 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.914 2.914 2.914 2.914
180 2.250 2.250 2.250 2.250 2.376 2.376 2.376 2.376 2.593 2.593 2.593 2.593 2.866 2.866 2.866 2.866
190 2.207 2.207 2.207 2.207 2.379 2.379 2.379 2.379 2.546 2.546 2.546 2.546 2.819 2.819 2.819 2.819
200 2.164 2.164 2.164 2.164 2.335 2.335 2.335 2.335 2.500 2.500 2.500 2.500 2.777 2.777 2.777 2.777
210 2.125 2.125 2.125 2.125 2.296 2.296 2.296 2.296 2.457 2.457 2.457 2.457 2.738 2.738 2.738 2.738
220 2.089 2.089 2.089 2.089 2.257 2.257 2.257 2.257 2.418 2.418 2.418 2.418 2.699 2.699 2.699 2.699
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.379 2.379 2.379 2.379 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.153 2.153 2.153 2.153 2.308 2.308 2.308 2.308 2.593 2.593 2.593 2.593
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.883 2.883 2.883 2.719 3.164 3.164 3.038 2.757 3.319 3.319 3.077 2.792 3.726 3.726 3.157 2.862
140 2.812 2.812 2.812 2.765 3.085 3.085 3.085 2.808 3.289 3.289 3.133 2.843 3.641 3.641 3.593 2.922
150 2.742 2.742 2.742 2.742 3.015 3.015 3.015 2.862 3.234 3.234 3.188 2.903 3.562 3.562 3.562 2.984
160 2.680 2.680 2.680 2.680 2.945 2.945 2.945 2.922 3.164 3.164 3.164 2.965 3.484 3.484 3.343 3.046
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.093 3.093 3.093 3.031 3.464 3.464 3.414 3.116
180 2.569 2.569 2.569 2.569 2.819 2.819 2.819 2.819 3.031 3.031 3.031 3.031 3.422 3.422 3.422 3.188
190 2.515 2.515 2.515 2.515 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.250
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.422 2.422 2.422 2.422 2.664 2.664 2.664 2.664 2.858 2.858 2.858 2.858 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.808 2.808 2.808 2.808 3.172 3.172 3.172 3.172
230 2.339 2.339 2.339 2.339 2.569 2.569 2.569 2.569 2.757 2.757 2.757 2.757 3.120 3.120 3.120 3.120
240 2.300 2.300 2.300 2.300 2.527 2.527 2.527 2.527 2.715 2.715 2.715 2.715 3.069 3.069 3.069 3.069
250 2.261 2.261 2.261 2.261 2.488 2.488 2.488 2.488 2.672 2.672 2.672 2.672 3.019 3.019 3.019 3.019
2xA2
52
2.
0 H
r Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0 FW 5.0 7.5 10.0
smdltd.co.uk 35 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
140 2.453 2.453 2.453 2.453 2.625 2.625 2.625 2.625 2.804 2.804 2.804 2.804 3.069 3.069 3.069 3.069
150 2.395 2.395 2.395 2.395 2.569 2.569 2.569 2.569 2.746 2.746 2.746 2.746 3.011 3.011 3.011 3.011
160 2.343 2.343 2.343 2.343 2.515 2.515 2.515 2.515 2.688 2.688 2.688 2.688 2.957 2.957 2.957 2.957
170 2.292 2.292 2.292 2.292 2.465 2.465 2.465 2.465 2.633 2.633 2.633 2.633 2.903 2.903 2.903 2.903
180 2.242 2.242 2.242 2.242 2.418 2.418 2.418 2.418 2.585 2.585 2.585 2.585 2.858 2.858 2.858 2.858
190 2.199 2.199 2.199 2.199 2.374 2.374 2.374 2.374 2.538 2.538 2.538 2.538 2.812 2.812 2.812 2.812
200 2.157 2.157 2.157 2.157 2.331 2.331 2.331 2.331 2.490 2.490 2.490 2.490 2.769 2.769 2.769 2.769
210 2.120 2.120 2.120 2.120 2.288 2.288 2.288 2.288 2.453 2.453 2.453 2.453 2.730 2.730 2.730 2.730
220 2.085 2.085 2.085 2.085 2.250 2.250 2.250 2.250 2.414 2.414 2.414 2.414 2.691 2.691 2.691 2.691
230 2.049 2.049 2.049 2.049 2.215 2.215 2.215 2.215 2.375 2.375 2.375 2.375 2.657 2.657 2.657 2.657
240 2.014 2.014 2.014 2.014 2.180 2.180 2.180 2.180 2.335 2.335 2.335 2.335 2.625 2.625 2.625 2.625
250 1.984 1.984 1.984 1.984 2.149 2.149 2.149 2.149 2.304 2.304 2.304 2.304 2.585 2.585 2.585 2.585
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **
140 2.804 2.804 2.804 2.804 3.077 3.077 3.077 3.077 3.279 3.279 3.279 3.164 3.633 3.633 3.633 3.633
150 2.734 2.734 2.734 2.734 3.007 3.007 3.007 3.007 3.226 3.226 3.226 3.211 3.554 3.554 3.554 3.554
160 2.672 2.672 2.672 2.672 2.938 2.938 2.938 2.938 3.157 3.157 3.157 3.157 3.476 3.476 3.476 3.335
170 2.616 2.616 2.616 2.616 2.875 2.875 2.875 2.875 3.085 3.085 3.085 3.085 3.456 3.456 3.456 3.399
180 2.562 2.562 2.562 2.562 2.812 2.812 2.812 2.812 3.023 3.023 3.023 3.023 3.414 3.414 3.414 3.414
190 2.511 2.511 2.511 2.511 2.757 2.757 2.757 2.757 2.961 2.961 2.961 2.961 3.350 3.350 3.350 3.350
200 2.461 2.461 2.461 2.461 2.703 2.703 2.703 2.703 2.907 2.907 2.907 2.907 3.288 3.288 3.288 3.288
210 2.418 2.418 2.418 2.418 2.657 2.657 2.657 2.657 2.850 2.850 2.850 2.850 3.226 3.226 3.226 3.226
220 2.375 2.375 2.375 2.375 2.608 2.608 2.608 2.608 2.804 2.804 2.804 2.804 3.168 3.168 3.168 3.168
230 2.335 2.335 2.335 2.335 2.562 2.562 2.562 2.562 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
240 2.294 2.294 2.294 2.294 2.523 2.523 2.523 2.523 2.711 2.711 2.711 2.711 3.062 3.062 3.062 3.062
250 2.255 2.255 2.255 2.255 2.484 2.484 2.484 2.484 2.664 2.664 2.664 2.664 3.015 3.015 3.015 3.015
2xA3
93
2.
0 H
r
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)0.8mm 0.9mm 1.0mm 1.2mm
Mesh Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
smdltd.co.uk36 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.046 3.046 3.046 3.046 3.319 3.319 3.319 3.288
120 2.552 2.552 2.552 2.552 2.773 2.773 2.773 2.773 2.965 2.965 2.965 2.965 3.234 3.234 3.234 3.234
130 2.534 2.534 2.534 2.534 2.707 2.707 2.707 2.707 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.160
140 2.469 2.469 2.469 2.469 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 3.062 3.062 3.046 2.750 3.281 3.281 3.273 2.823 3.507 3.507 3.211 2.899 3.938 3.938 3.500 3.031
120 2.976 2.976 2.976 2.945 3.215 3.215 3.215 3.023 3.414 3.414 3.414 3.093 3.835 3.835 3.788 3.234
130 2.891 2.891 2.891 2.891 3.180 3.180 3.180 3.180 3.335 3.335 3.335 3.335 3.742 3.742 3.742 3.608
140 2.819 2.819 2.819 2.819 3.100 3.100 3.100 3.100 3.299 3.299 3.299 3.299 3.649 3.649 3.649 3.649
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.242 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
25kg
1
.0 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 37 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.042 3.042 3.042 3.042 3.315 3.315 3.315 3.315
120 2.551 2.551 2.551 2.551 2.773 2.773 2.773 2.773 2.961 2.961 2.961 2.961 3.234 3.234 3.234 3.234
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.160
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.354 2.354 2.354 2.354 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.550 2.550 2.550 2.550 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 3.062 3.062 3.062 2.796 3.281 3.281 3.281 2.866 3.507 3.507 3.414 2.938 3.930 3.930 3.562 3.069
120 2.969 2.969 2.969 2.969 3.213 3.213 3.213 3.077 3.414 3.414 3.414 3.149 3.835 3.835 3.835 3.281
130 2.891 2.891 2.891 2.891 3.180 3.180 3.180 3.180 3.327 3.327 3.327 3.327 3.734 3.734 3.734 3.688
140 2.819 2.819 2.819 2.819 3.093 3.093 3.093 3.093 3.298 3.298 3.298 3.298 3.649 3.649 3.649 3.649
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.242 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.470 3.470 3.470 3.470
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.765 2.765 2.765 2.765 2.976 2.976 2.976 2.976 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.715 2.715 2.715 2.715 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
30kg
1
.0 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk38 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.846 2.846 2.846 2.846 3.038 3.038 3.038 3.038 3.312 3.312 3.312 3.312
120 2.550 2.550 2.550 2.550 2.773 2.773 2.773 2.773 2.961 2.961 2.961 2.961 3.234 3.234 3.234 3.234
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.157 3.157 3.157 3.157
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.823 2.823 2.823 2.823 3.089 3.089 3.089 3.089
150 2.407 2.407 2.407 2.407 2.585 2.585 2.585 2.585 2.761 2.761 2.761 2.761 3.027 3.027 3.027 3.027
160 2.354 2.354 2.354 2.354 2.527 2.527 2.527 2.527 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.426 2.426 2.426 2.426 2.596 2.596 2.596 2.596 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.546 2.546 2.546 2.546 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.500 2.500 2.500 2.500 2.777 2.777 2.777 2.777
210 2.125 2.125 2.125 2.125 2.296 2.296 2.296 2.296 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.089 2.089 2.089 2.089 2.257 2.257 2.257 2.257 2.418 2.418 2.418 2.418 2.699 2.699 2.699 2.699
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.379 2.379 2.379 2.379 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.153 2.153 2.153 2.153 2.304 2.304 2.304 2.304 2.593 2.593 2.593 2.593
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 3.054 3.054 3.054 2.835 3.281 3.281 3.281 2.907 3.507 3.507 3.476 2.976 3.930 3.930 3.624 3.108
120 2.969 2.969 2.969 2.969 3.212 3.212 3.212 3.120 3.414 3.414 3.414 3.188 3.827 3.827 3.827 3.327
130 2.891 2.891 2.891 2.891 3.172 3.172 3.172 3.172 3.327 3.327 3.327 3.327 3.734 3.734 3.734 3.734
140 2.819 2.819 2.819 2.819 3.093 3.093 3.093 3.093 3.296 3.296 3.296 3.296 3.649 3.649 3.649 3.649
150 2.750 2.750 2.750 2.750 3.019 3.019 3.019 3.019 3.242 3.242 3.242 3.242 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.469 3.469 3.469 3.469
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.519 2.519 2.519 2.519 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.422 2.422 2.422 2.422 2.664 2.664 2.664 2.664 2.858 2.858 2.858 2.858 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.172 3.172 3.172 3.172
230 2.339 2.339 2.339 2.339 2.569 2.569 2.569 2.569 2.761 2.761 2.761 2.761 3.120 3.120 3.120 3.120
240 2.300 2.300 2.300 2.300 2.527 2.527 2.527 2.527 2.715 2.715 2.715 2.715 3.069 3.069 3.069 3.069
250 2.259 2.259 2.259 2.259 2.484 2.484 2.484 2.484 2.672 2.672 2.672 2.672 3.015 3.015 3.015 3.015
HE
35kg
1
.0 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 39 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.046 3.046 3.046 3.046 3.319 3.319 3.319 3.319
120 2.553 2.553 2.553 2.553 2.777 2.777 2.777 2.777 2.969 2.969 2.969 2.969 3.238 3.238 3.238 3.238
130 2.538 2.538 2.538 2.538 2.711 2.711 2.711 2.711 2.895 2.895 2.895 2.895 3.164 3.164 3.164 3.164
140 2.472 2.472 2.472 2.472 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.707 2.707 2.707 2.707 2.976 2.976 2.976 2.976
170 2.304 2.304 2.304 2.304 2.480 2.480 2.480 2.480 2.653 2.653 2.653 2.653 2.922 2.922 2.922 2.922
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.875 2.875 2.875 2.875
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.554 2.554 2.554 2.554 2.827 2.827 2.827 2.827
200 2.172 2.172 2.172 2.172 2.343 2.343 2.343 2.343 2.507 2.507 2.507 2.507 2.784 2.784 2.784 2.784
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 3.062 3.062 3.062 2.788 3.281 3.281 3.281 2.866 3.515 3.515 3.414 2.938 3.938 3.938 3.562 3.069
120 2.976 2.976 2.976 2.976 3.216 3.216 3.216 3.069 3.422 3.422 3.422 3.141 3.835 3.835 3.835 3.281
130 2.891 2.891 2.891 2.891 3.180 3.180 3.180 3.180 3.335 3.335 3.335 3.335 3.742 3.742 3.742 3.680
140 2.819 2.819 2.819 2.819 3.100 3.100 3.100 3.100 3.301 3.301 3.301 3.301 3.657 3.657 3.657 3.657
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.250 3.250 3.250 3.250 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.500 3.500 3.500 3.500
170 2.629 2.629 2.629 2.629 2.891 2.891 2.891 2.891 3.100 3.100 3.100 3.100 3.474 3.474 3.474 3.474
180 2.577 2.577 2.577 2.577 2.827 2.827 2.827 2.827 3.038 3.038 3.038 3.038 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.773 2.773 2.773 2.773 2.976 2.976 2.976 2.976 3.366 3.366 3.366 3.366
200 2.476 2.476 2.476 2.476 2.719 2.719 2.719 2.719 2.922 2.922 2.922 2.922 3.296 3.296 3.296 3.296
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE+
+ 20
kg
1.0
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk40 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.046 3.046 3.046 3.046 3.319 3.319 3.319 3.319
120 2.552 2.552 2.552 2.552 2.773 2.773 2.773 2.773 2.965 2.965 2.965 2.965 3.234 3.234 3.234 3.234
130 2.534 2.534 2.534 2.534 2.707 2.707 2.707 2.707 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.160
140 2.469 2.469 2.469 2.469 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.922 2.922 2.922 2.922
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.554 2.554 2.554 2.554 2.827 2.827 2.827 2.827
200 2.172 2.172 2.172 2.172 2.343 2.343 2.343 2.343 2.507 2.507 2.507 2.507 2.781 2.781 2.781 2.781
210 2.129 2.129 2.129 2.129 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.742 2.742 2.742 2.742
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.057 2.057 2.057 2.057 2.226 2.226 2.226 2.226 2.383 2.383 2.383 2.383 2.668 2.668 2.668 2.668
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.250 2.250 2.250 2.250 2.633 2.633 2.633 2.633
250 1.992 1.992 1.992 1.992 2.157 2.157 2.157 2.157 2.312 2.312 2.312 2.312 2.596 2.596 2.596 2.596
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 3.062 3.062 3.062 2.850 3.281 3.281 3.281 2.922 3.507 3.507 3.500 2.992 3.938 3.938 3.641 3.124
120 2.976 2.976 2.976 2.976 3.215 3.215 3.215 3.141 3.414 3.414 3.414 3.203 3.835 3.835 3.835 3.343
130 2.891 2.891 2.891 2.891 3.180 3.180 3.180 3.180 3.335 3.335 3.335 3.335 3.742 3.742 3.742 3.742
140 2.819 2.819 2.819 2.819 3.100 3.100 3.100 3.100 3.299 3.299 3.299 3.299 3.649 3.649 3.649 3.649
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.242 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 2.626 2.626 2.626 2.626 2.887 2.887 2.887 2.887 3.100 3.100 3.100 3.100 3.472 3.472 3.472 3.472
180 2.573 2.573 2.573 2.573 2.827 2.827 2.827 2.827 3.038 3.038 3.038 3.038 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.769 2.769 2.769 2.769 2.976 2.976 2.976 2.976 3.366 3.366 3.366 3.366
200 2.472 2.472 2.472 2.472 2.719 2.719 2.719 2.719 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.866 2.866 2.866 2.866 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.573 2.573 2.573 2.573 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.304 2.304 2.304 2.304 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 2.263 2.263 2.263 2.263 2.492 2.492 2.492 2.492 2.672 2.672 2.672 2.672 3.023 3.023 3.023 3.023
HE+
+ 25
kg
1.0
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 41 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 2.616 2.616 2.616 2.616 2.850 2.850 2.850 2.850 3.042 3.042 3.042 3.042 3.315 3.315 3.315 3.315
120 2.551 2.551 2.551 2.551 2.773 2.773 2.773 2.773 2.961 2.961 2.961 2.961 3.234 3.234 3.234 3.234
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.160
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.354 2.354 2.354 2.354 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.550 2.550 2.550 2.550 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.383 2.383 2.383 2.383 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.157 2.157 2.157 2.157 2.308 2.308 2.308 2.308 2.593 2.593 2.593 2.593
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 3.062 3.062 3.062 2.883 3.281 3.281 3.281 2.953 3.507 3.507 3.507 3.023 3.930 3.930 3.688 3.149
120 2.969 2.969 2.969 2.969 3.213 3.213 3.213 3.180 3.414 3.414 3.414 3.242 3.835 3.835 3.835 3.546
130 2.891 2.891 2.891 2.891 3.180 3.180 3.180 3.180 3.327 3.327 3.327 3.327 3.734 3.734 3.734 3.734
140 2.819 2.819 2.819 2.819 3.093 3.093 3.093 3.093 3.298 3.298 3.298 3.298 3.649 3.649 3.649 3.649
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.242 3.569 3.569 3.569 3.569
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.470 3.470 3.470 3.470
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.765 2.765 2.765 2.765 2.976 2.976 2.976 2.976 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.715 2.715 2.715 2.715 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.569 2.569 2.569 2.569 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.300 2.300 2.300 2.300 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 2.261 2.261 2.261 2.261 2.488 2.488 2.488 2.488 2.672 2.672 2.672 2.672 3.023 3.023 3.023 3.023
HE+
+ 30
kg
1.0
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk42 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 2.616 2.616 2.426 2.191 2.850 2.850 2.492 2.250 3.046 3.046 2.554 2.308 3.319 3.319 2.676 2.418
120 2.552 2.552 2.552 2.366 2.773 2.773 2.773 2.422 2.965 2.965 2.938 2.484 3.234 3.234 3.054 2.593
130 2.534 2.534 2.534 2.534 2.707 2.707 2.707 2.707 2.891 2.891 2.891 2.827 3.160 3.160 3.160 2.922
140 2.469 2.469 2.469 2.469 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 3.062 3.062 2.426 2.191 3.281 3.281 2.492 2.250 3.507 3.507 2.554 2.308 3.938 3.765 2.676 2.418
120 2.976 2.976 2.612 2.366 3.215 3.215 2.680 2.422 3.414 3.414 2.742 2.484 3.835 3.835 2.862 2.593
130 2.891 2.891 2.796 2.538 3.180 3.180 2.866 2.593 3.335 3.335 2.926 2.653 3.742 3.742 3.046 2.765
140 2.819 2.819 2.819 2.707 3.100 3.100 3.046 2.765 3.299 3.299 3.108 2.827 3.649 3.649 3.234 2.938
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 2.945 3.242 3.242 3.242 3.000 3.569 3.569 3.569 3.108
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.288
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
25kg
1
.5 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 43 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 2.616 2.616 2.465 2.226 2.850 2.850 2.672 2.288 3.042 3.042 2.593 2.343 3.315 3.315 2.711 2.445
120 2.551 2.551 2.551 2.407 2.773 2.773 2.773 2.465 2.961 2.961 2.961 2.523 3.234 3.234 3.125 2.625
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.160 3.160 3.160 2.992
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.354 2.354 2.354 2.354 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.550 2.550 2.550 2.550 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 3.062 3.062 2.465 2.226 3.281 3.281 2.531 2.288 3.507 3.507 2.593 2.343 3.930 3.827 2.711 2.445
120 2.969 2.969 2.657 2.407 3.213 3.213 2.726 2.465 3.414 3.414 2.788 2.523 3.835 3.835 2.903 2.625
130 2.891 2.891 2.850 2.585 3.180 3.180 2.914 2.641 3.327 3.327 2.976 2.699 3.734 3.734 3.093 2.804
140 2.819 2.819 2.819 2.765 3.093 3.093 3.093 2.823 3.298 3.298 3.172 2.875 3.649 3.649 3.288 2.984
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.007 3.242 3.242 3.242 3.062 3.569 3.569 3.569 3.164
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.350
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.470 3.470 3.470 3.470
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.765 2.765 2.765 2.765 2.976 2.976 2.976 2.976 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.715 2.715 2.715 2.715 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
30kg
1
.5 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk44 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 2.616 2.616 2.500 2.257 2.846 2.846 2.726 2.315 3.038 3.038 2.781 2.370 3.312 3.312 2.742 2.476
120 2.550 2.550 2.550 2.445 2.773 2.773 2.773 2.500 2.961 2.961 2.961 2.554 3.234 3.234 3.188 2.660
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.157 3.157 3.157 3.062
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.823 2.823 2.823 2.823 3.089 3.089 3.089 3.089
150 2.407 2.407 2.407 2.407 2.585 2.585 2.585 2.585 2.761 2.761 2.761 2.761 3.027 3.027 3.027 3.027
160 2.354 2.354 2.354 2.354 2.527 2.527 2.527 2.527 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.426 2.426 2.426 2.426 2.596 2.596 2.596 2.596 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.546 2.546 2.546 2.546 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.500 2.500 2.500 2.500 2.777 2.777 2.777 2.777
210 2.125 2.125 2.125 2.125 2.296 2.296 2.296 2.296 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.089 2.089 2.089 2.089 2.257 2.257 2.257 2.257 2.418 2.418 2.418 2.418 2.699 2.699 2.699 2.699
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.379 2.379 2.379 2.379 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.153 2.153 2.153 2.153 2.304 2.304 2.304 2.304 2.593 2.593 2.593 2.593
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 3.054 3.054 2.500 2.257 3.281 3.281 2.562 2.315 3.507 3.507 2.625 2.370 3.930 3.899 2.742 2.476
120 2.969 2.969 2.699 2.445 3.212 3.212 2.765 2.500 3.414 3.414 2.827 2.554 3.827 3.827 2.938 2.660
130 2.891 2.891 2.891 2.625 3.172 3.172 2.961 2.688 3.327 3.327 3.023 2.742 3.734 3.734 3.141 2.843
140 2.819 2.819 2.819 2.812 3.093 3.093 3.093 2.874 3.296 3.296 3.219 2.922 3.649 3.649 3.515 3.031
150 2.750 2.750 2.750 2.750 3.019 3.019 3.019 3.019 3.242 3.242 3.242 3.116 3.569 3.569 3.569 3.219
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.407
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.469 3.469 3.469 3.469
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.519 2.519 2.519 2.519 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.422 2.422 2.422 2.422 2.664 2.664 2.664 2.664 2.858 2.858 2.858 2.858 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.172 3.172 3.172 3.172
230 2.339 2.339 2.339 2.339 2.569 2.569 2.569 2.569 2.761 2.761 2.761 2.761 3.120 3.120 3.120 3.120
240 2.300 2.300 2.300 2.300 2.527 2.527 2.527 2.527 2.715 2.715 2.715 2.715 3.069 3.069 3.069 3.069
250 2.259 2.259 2.259 2.259 2.484 2.484 2.484 2.484 2.672 2.672 2.672 2.672 3.015 3.015 3.015 3.015
HE
35kg
1
.5 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 45 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 2.616 2.616 2.461 2.226 2.850 2.850 2.672 2.284 3.046 3.046 2.593 2.343 3.319 3.319 2.711 2.445
120 2.553 2.553 2.553 2.403 2.777 2.777 2.777 2.461 2.969 2.969 2.969 2.519 3.238 3.238 3.125 2.625
130 2.538 2.538 2.538 2.538 2.711 2.711 2.711 2.711 2.895 2.895 2.895 2.891 3.164 3.164 3.164 2.984
140 2.472 2.472 2.472 2.472 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.707 2.707 2.707 2.707 2.976 2.976 2.976 2.976
170 2.304 2.304 2.304 2.304 2.480 2.480 2.480 2.480 2.653 2.653 2.653 2.653 2.922 2.922 2.922 2.922
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.875 2.875 2.875 2.875
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.554 2.554 2.554 2.554 2.827 2.827 2.827 2.827
200 2.172 2.172 2.172 2.172 2.343 2.343 2.343 2.343 2.507 2.507 2.507 2.507 2.784 2.784 2.784 2.784
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 3.062 3.062 2.461 2.226 3.281 3.281 2.531 2.284 3.515 3.515 2.593 2.343 3.938 3.827 2.711 2.445
120 2.976 2.976 2.657 2.403 3.216 3.216 2.719 2.461 3.422 3.422 2.781 2.519 3.835 3.835 2.899 2.625
130 2.891 2.891 2.850 2.585 3.180 3.180 2.914 2.641 3.335 3.335 2.976 2.695 3.742 3.742 3.093 2.804
140 2.819 2.819 2.819 2.761 3.100 3.100 3.100 2.819 3.301 3.301 3.164 2.875 3.657 3.657 3.288 2.984
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.000 3.250 3.250 3.250 3.058 3.569 3.569 3.569 3.164
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.500 3.500 3.500 3.500
170 2.629 2.629 2.629 2.629 2.891 2.891 2.891 2.891 3.100 3.100 3.100 3.100 3.474 3.474 3.474 3.474
180 2.577 2.577 2.577 2.577 2.827 2.827 2.827 2.827 3.038 3.038 3.038 3.038 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.773 2.773 2.773 2.773 2.976 2.976 2.976 2.976 3.366 3.366 3.366 3.366
200 2.476 2.476 2.476 2.476 2.719 2.719 2.719 2.719 2.922 2.922 2.922 2.922 3.296 3.296 3.296 3.296
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE+
+ 20
kg
1.5
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk46 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 2.616 2.616 2.616 2.273 2.850 2.850 2.742 2.327 3.046 3.046 2.804 2.383 3.319 3.319 2.750 2.484
120 2.552 2.552 2.552 2.457 2.773 2.773 2.773 2.664 2.965 2.965 2.965 2.569 3.234 3.234 3.219 2.672
130 2.534 2.534 2.534 2.534 2.707 2.707 2.707 2.707 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.077
140 2.469 2.469 2.469 2.469 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.922 2.922 2.922 2.922
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.554 2.554 2.554 2.554 2.827 2.827 2.827 2.827
200 2.172 2.172 2.172 2.172 2.343 2.343 2.343 2.343 2.507 2.507 2.507 2.507 2.781 2.781 2.781 2.781
210 2.129 2.129 2.129 2.129 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.742 2.742 2.742 2.742
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.057 2.057 2.057 2.057 2.226 2.226 2.226 2.226 2.383 2.383 2.383 2.383 2.668 2.668 2.668 2.668
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.250 2.250 2.250 2.250 2.633 2.633 2.633 2.633
250 1.992 1.992 1.992 1.992 2.157 2.157 2.157 2.157 2.312 2.312 2.312 2.312 2.596 2.596 2.596 2.596
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 3.062 3.062 2.515 2.273 3.281 3.281 2.577 2.327 3.507 3.507 2.637 2.383 3.938 3.922 2.750 2.484
120 2.976 2.976 2.715 2.457 3.215 3.215 2.781 2.515 3.414 3.414 2.839 2.569 3.835 3.835 2.953 2.672
130 2.891 2.891 2.891 2.641 3.180 3.180 2.980 2.703 3.335 3.335 3.038 2.757 3.742 3.742 3.157 2.858
140 2.819 2.819 2.819 2.819 3.100 3.100 3.100 2.891 3.299 3.299 3.242 2.945 3.649 3.649 3.538 3.046
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.133 3.569 3.569 3.569 3.238
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.430
170 2.626 2.626 2.626 2.626 2.887 2.887 2.887 2.887 3.100 3.100 3.100 3.100 3.472 3.472 3.472 3.472
180 2.573 2.573 2.573 2.573 2.827 2.827 2.827 2.827 3.038 3.038 3.038 3.038 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.769 2.769 2.769 2.769 2.976 2.976 2.976 2.976 3.366 3.366 3.366 3.366
200 2.472 2.472 2.472 2.472 2.719 2.719 2.719 2.719 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.866 2.866 2.866 2.866 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.573 2.573 2.573 2.573 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.304 2.304 2.304 2.304 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 2.263 2.263 2.263 2.263 2.492 2.492 2.492 2.492 2.672 2.672 2.672 2.672 3.023 3.023 3.023 3.023
HE+
+ 25
kg
1.5
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 47 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 2.616 2.616 2.616 2.296 2.850 2.850 2.796 2.354 3.042 3.042 2.850 2.407 3.315 3.315 2.953 2.511
120 2.551 2.551 2.551 2.492 2.773 2.773 2.773 2.719 2.961 2.961 2.961 2.765 3.234 3.234 3.234 2.703
130 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.891 2.891 2.891 2.891 3.160 3.160 3.160 3.141
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 3.093
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.354 2.354 2.354 2.354 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.550 2.550 2.550 2.550 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.383 2.383 2.383 2.383 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.157 2.157 2.157 2.157 2.308 2.308 2.308 2.308 2.593 2.593 2.593 2.593
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 3.062 3.062 2.546 2.296 3.281 3.281 2.608 2.354 3.507 3.507 2.664 2.407 3.930 3.930 2.781 2.511
120 2.969 2.969 2.750 2.492 3.213 3.213 2.812 2.546 3.414 3.414 2.875 2.600 3.835 3.835 2.984 2.703
130 2.891 2.891 2.891 2.680 3.180 3.180 3.023 2.738 3.327 3.327 3.077 2.792 3.734 3.734 3.195 2.891
140 2.819 2.819 2.819 2.819 3.093 3.093 3.093 2.930 3.298 3.298 3.288 2.984 3.649 3.649 3.608 3.085
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 3.023 3.242 3.242 3.242 3.180 3.569 3.569 3.569 3.281
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.172 3.492 3.492 3.492 3.492
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.470 3.470 3.470 3.470
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.765 2.765 2.765 2.765 2.976 2.976 2.976 2.976 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.715 2.715 2.715 2.715 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.569 2.569 2.569 2.569 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.300 2.300 2.300 2.300 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 2.261 2.261 2.261 2.261 2.488 2.488 2.488 2.488 2.672 2.672 2.672 2.672 3.023 3.023 3.023 3.023
HE+
+ 30
kg
1.5
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk48 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.534 2.534 2.503 2.273 2.707 2.707 2.707 2.323 2.891 2.891 2.781 2.374 3.160 3.160 2.719 2.469
140 2.469 2.469 2.469 2.434 2.645 2.645 2.645 2.484 2.827 2.827 2.827 2.534 3.093 3.093 3.093 2.626
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 2.984
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.503 2.273 3.180 3.180 2.562 2.323 3.335 3.335 2.616 2.374 3.742 3.742 2.719 2.469
140 2.819 2.819 2.680 2.434 3.100 3.100 2.734 2.484 3.299 3.299 2.788 2.534 3.649 3.649 2.891 2.626
150 2.750 2.750 2.750 2.600 3.023 3.023 2.914 2.649 3.242 3.242 2.969 2.699 3.569 3.569 3.069 2.792
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.819 3.172 3.172 3.141 2.866 3.492 3.492 3.242 2.961
170 - - - - - - - - - - - - - - - -
180 - - - - - - - - - - - - - - - -
190 - - - - - - - - - - - - - - - -
200 - - - - - - - - - - - - - - - -
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
25kg
2
.0 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 49 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.531 2.531 2.531 2.315 2.703 2.703 2.703 2.366 2.891 2.891 2.858 2.414 3.160 3.160 2.938 2.507
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.750 3.093 3.093 3.093 2.672
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.354 2.354 2.354 2.354 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.550 2.550 2.550 2.550 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.554 2.315 3.180 3.180 2.608 2.366 3.327 3.327 2.664 2.414 3.734 3.734 2.765 2.507
140 2.819 2.819 2.734 2.484 3.093 3.093 2.788 2.538 3.298 3.298 2.843 2.585 3.649 3.649 2.945 2.672
150 2.750 2.750 2.750 2.657 3.023 3.023 2.976 2.711 3.242 3.242 3.027 2.757 3.569 3.569 3.125 2.843
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.883 3.172 3.172 3.172 2.930 3.492 3.492 3.312 3.015
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.470 3.470 3.470 3.188
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.358
190 2.523 2.523 2.523 2.523 2.765 2.765 2.765 2.765 2.976 2.976 2.976 2.976 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.715 2.715 2.715 2.715 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE
30kg
2
.0 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk50 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.531 2.531 2.531 2.358 2.703 2.703 2.703 2.407 2.891 2.891 2.891 2.453 3.157 3.157 3.000 2.542
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.823 2.823 2.823 2.819 3.089 3.089 3.089 2.719
150 2.407 2.407 2.407 2.407 2.585 2.585 2.585 2.585 2.761 2.761 2.761 2.761 3.027 3.027 3.027 3.027
160 2.354 2.354 2.354 2.354 2.527 2.527 2.527 2.527 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.426 2.426 2.426 2.426 2.596 2.596 2.596 2.596 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.546 2.546 2.546 2.546 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.500 2.500 2.500 2.500 2.777 2.777 2.777 2.777
210 2.125 2.125 2.125 2.125 2.296 2.296 2.296 2.296 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.089 2.089 2.089 2.089 2.257 2.257 2.257 2.257 2.418 2.418 2.418 2.418 2.699 2.699 2.699 2.699
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.379 2.379 2.379 2.379 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.153 2.153 2.153 2.153 2.304 2.304 2.304 2.304 2.593 2.593 2.593 2.593
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.596 2.358 3.172 3.172 2.649 2.407 3.327 3.327 2.703 2.453 3.734 3.734 2.804 2.542
140 2.819 2.819 2.788 2.531 3.093 3.093 2.843 2.577 3.296 3.296 2.891 2.625 3.649 3.649 2.992 2.719
150 2.750 2.750 2.750 2.711 3.019 3.019 3.019 2.757 3.242 3.242 3.081 2.804 3.569 3.569 3.180 2.891
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.938 3.172 3.172 3.172 2.984 3.492 3.492 3.366 3.069
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.469 3.469 3.469 3.250
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.519 2.519 2.519 2.519 2.765 2.765 2.765 2.765 2.969 2.969 2.969 2.969 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.711 2.711 2.711 2.711 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.422 2.422 2.422 2.422 2.664 2.664 2.664 2.664 2.858 2.858 2.858 2.858 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.172 3.172 3.172 3.172
230 2.339 2.339 2.339 2.339 2.569 2.569 2.569 2.569 2.761 2.761 2.761 2.761 3.120 3.120 3.120 3.120
240 2.300 2.300 2.300 2.300 2.527 2.527 2.527 2.527 2.715 2.715 2.715 2.715 3.069 3.069 3.069 3.069
250 2.259 2.259 2.259 2.259 2.484 2.484 2.484 2.484 2.672 2.672 2.672 2.672 3.015 3.015 3.015 3.015
HE
35kg
2
.0 H
r
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 51 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.538 2.538 2.538 2.312 2.711 2.711 2.711 2.366 2.895 2.895 2.850 2.414 3.164 3.164 2.938 2.507
140 2.472 2.472 2.472 2.472 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.750 3.093 3.093 3.093 2.672
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.707 2.707 2.707 2.707 2.976 2.976 2.976 2.976
170 2.304 2.304 2.304 2.304 2.480 2.480 2.480 2.480 2.653 2.653 2.653 2.653 2.922 2.922 2.922 2.922
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.875 2.875 2.875 2.875
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.554 2.554 2.554 2.554 2.827 2.827 2.827 2.827
200 2.172 2.172 2.172 2.172 2.343 2.343 2.343 2.343 2.507 2.507 2.507 2.507 2.784 2.784 2.784 2.784
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.554 2.312 3.180 3.180 2.608 2.366 3.335 3.335 2.657 2.414 3.742 3.742 2.765 2.507
140 2.819 2.819 2.734 2.484 3.100 3.100 2.788 2.531 3.301 3.301 2.843 2.581 3.657 3.657 2.945 2.672
150 2.750 2.750 2.750 2.657 3.023 3.023 2.976 2.703 3.250 3.250 3.023 2.750 3.569 3.569 3.125 2.843
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.883 3.172 3.172 3.172 2.930 3.500 3.500 3.312 3.015
170 2.629 2.629 2.629 2.629 2.891 2.891 2.891 2.891 3.100 3.100 3.100 3.100 3.474 3.474 3.474 3.188
180 2.577 2.577 2.577 2.577 2.827 2.827 2.827 2.827 3.038 3.038 3.038 3.038 3.430 3.430 3.430 3.358
190 2.523 2.523 2.523 2.523 2.773 2.773 2.773 2.773 2.976 2.976 2.976 2.976 3.366 3.366 3.366 3.366
200 2.476 2.476 2.476 2.476 2.719 2.719 2.719 2.719 2.922 2.922 2.922 2.922 3.296 3.296 3.296 3.296
210 - - - - - - - - - - - - - - - -
220 - - - - - - - - - - - - - - - -
230 - - - - - - - - - - - - - - - -
240 - - - - - - - - - - - - - - - -
250 - - - - - - - - - - - - - - - -
HE+
+ 20
kg
2.0
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk52 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.534 2.534 2.534 2.370 2.707 2.707 2.707 2.422 2.891 2.891 2.891 2.469 3.160 3.160 3.031 2.554
140 2.469 2.469 2.469 2.469 2.645 2.645 2.645 2.645 2.827 2.827 2.827 2.827 3.093 3.093 3.093 2.734
150 2.414 2.414 2.414 2.414 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.358 2.358 2.358 2.358 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.922 2.922 2.922 2.922
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.554 2.554 2.554 2.554 2.827 2.827 2.827 2.827
200 2.172 2.172 2.172 2.172 2.343 2.343 2.343 2.343 2.507 2.507 2.507 2.507 2.781 2.781 2.781 2.781
210 2.129 2.129 2.129 2.129 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.742 2.742 2.742 2.742
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.057 2.057 2.057 2.057 2.226 2.226 2.226 2.226 2.383 2.383 2.383 2.383 2.668 2.668 2.668 2.668
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.250 2.250 2.250 2.250 2.633 2.633 2.633 2.633
250 1.992 1.992 1.992 1.992 2.157 2.157 2.157 2.157 2.312 2.312 2.312 2.312 2.596 2.596 2.596 2.596
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.616 2.370 3.180 3.180 2.668 2.422 3.335 3.335 2.719 2.469 3.742 3.742 2.819 2.554
140 2.819 2.819 2.804 2.546 3.100 3.100 2.858 2.596 3.299 3.299 2.907 2.641 3.649 3.649 3.007 2.734
150 2.750 2.750 2.750 2.730 3.023 3.023 3.023 2.777 3.242 3.242 3.100 2.823 3.569 3.569 3.199 2.914
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.007 3.492 3.492 3.391 3.093
170 2.626 2.626 2.626 2.626 2.887 2.887 2.887 2.887 3.100 3.100 3.100 3.100 3.472 3.472 3.472 3.273
180 2.573 2.573 2.573 2.573 2.827 2.827 2.827 2.827 3.038 3.038 3.038 3.038 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.769 2.769 2.769 2.769 2.976 2.976 2.976 2.976 3.366 3.366 3.366 3.366
200 2.472 2.472 2.472 2.472 2.719 2.719 2.719 2.719 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.866 2.866 2.866 2.866 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.573 2.573 2.573 2.573 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.304 2.304 2.304 2.304 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 2.263 2.263 2.263 2.263 2.492 2.492 2.492 2.492 2.672 2.672 2.672 2.672 3.023 3.023 3.023 3.023
HE+
+ 25
kg
2.0
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 53 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.531 2.531 2.531 2.407 2.703 2.703 2.703 2.453 2.891 2.891 2.891 2.500 3.160 3.160 3.093 2.589
140 2.469 2.469 2.469 2.469 2.641 2.641 2.641 2.641 2.827 2.827 2.827 2.827 3.093 3.093 3.093 2.976
150 2.410 2.410 2.410 2.410 2.585 2.585 2.585 2.585 2.765 2.765 2.765 2.765 3.031 3.031 3.031 3.031
160 2.354 2.354 2.354 2.354 2.531 2.531 2.531 2.531 2.703 2.703 2.703 2.703 2.750 2.750 2.750 2.750
170 2.304 2.304 2.304 2.304 2.476 2.476 2.476 2.476 2.649 2.649 2.649 2.649 2.918 2.918 2.918 2.918
180 2.257 2.257 2.257 2.257 2.430 2.430 2.430 2.430 2.600 2.600 2.600 2.600 2.870 2.870 2.870 2.870
190 2.211 2.211 2.211 2.211 2.383 2.383 2.383 2.383 2.550 2.550 2.550 2.550 2.823 2.823 2.823 2.823
200 2.168 2.168 2.168 2.168 2.339 2.339 2.339 2.339 2.503 2.503 2.503 2.503 2.781 2.781 2.781 2.781
210 2.126 2.126 2.126 2.126 2.300 2.300 2.300 2.300 2.461 2.461 2.461 2.461 2.738 2.738 2.738 2.738
220 2.093 2.093 2.093 2.093 2.261 2.261 2.261 2.261 2.422 2.422 2.422 2.422 2.703 2.703 2.703 2.703
230 2.053 2.053 2.053 2.053 2.222 2.222 2.222 2.222 2.383 2.383 2.383 2.383 2.664 2.664 2.664 2.664
240 2.022 2.022 2.022 2.022 2.188 2.188 2.188 2.188 2.343 2.343 2.343 2.343 2.629 2.629 2.629 2.629
250 1.988 1.988 1.988 1.988 2.157 2.157 2.157 2.157 2.308 2.308 2.308 2.308 2.593 2.593 2.593 2.593
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - - - - - -
120 - - - - - - - - - - - - - - - -
130 2.891 2.891 2.653 2.407 3.180 3.180 2.707 2.453 3.327 3.327 2.757 2.500 3.734 3.734 2.854 2.589
140 2.819 2.819 2.819 2.589 3.093 3.093 2.903 2.637 3.298 3.298 2.953 2.680 3.649 3.649 3.046 2.769
150 2.750 2.750 2.750 2.750 3.023 3.023 3.023 2.823 3.242 3.242 3.149 2.866 3.569 3.569 3.242 2.953
160 2.688 2.688 2.688 2.688 2.953 2.953 2.953 2.953 3.172 3.172 3.172 3.054 3.492 3.492 3.445 3.141
170 2.625 2.625 2.625 2.625 2.883 2.883 2.883 2.883 3.100 3.100 3.100 3.100 3.470 3.470 3.470 3.327
180 2.569 2.569 2.569 2.569 2.827 2.827 2.827 2.827 3.031 3.031 3.031 3.031 3.430 3.430 3.430 3.430
190 2.523 2.523 2.523 2.523 2.765 2.765 2.765 2.765 2.976 2.976 2.976 2.976 3.358 3.358 3.358 3.358
200 2.469 2.469 2.469 2.469 2.715 2.715 2.715 2.715 2.914 2.914 2.914 2.914 3.296 3.296 3.296 3.296
210 2.426 2.426 2.426 2.426 2.664 2.664 2.664 2.664 2.862 2.862 2.862 2.862 3.234 3.234 3.234 3.234
220 2.383 2.383 2.383 2.383 2.616 2.616 2.616 2.616 2.812 2.812 2.812 2.812 3.180 3.180 3.180 3.180
230 2.343 2.343 2.343 2.343 2.569 2.569 2.569 2.569 2.765 2.765 2.765 2.765 3.125 3.125 3.125 3.125
240 2.300 2.300 2.300 2.300 2.531 2.531 2.531 2.531 2.719 2.719 2.719 2.719 3.069 3.069 3.069 3.069
250 2.261 2.261 2.261 2.261 2.488 2.488 2.488 2.488 2.672 2.672 2.672 2.672 3.023 3.023 3.023 3.023
HE+
+ 30
kg
2.0
Hr
0.8mm 0.9mm 1.0mm 1.2mm
Fibres Deck Span
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
FLOOR DECK PROFILE
55 TR60+ Product Information and Properties56 Step 2 TR60+ Composite Slab Graph (Mesh)57 Step 2 TR60+ Composite Slab Graph (Steel Fibres)58 Step 3 TR60+ 1.0 Hour fire rating (Mesh)64 Step 3 TR60+ 1.5 Hour fire rating (Mesh)70 Step 3 TR60+ 2.0 Hour fire rating (Mesh)76 Step 3 TR60+ 1.0 Hour fire rating (Steel Fibres)82 Step 3 TR60+ 1.5 Hour fire rating (Steel Fibres)88 Step 3 TR60+ 2.0 Hour fire rating (Steel Fibres)
Page Title
54 The White Book V4smdltd.co.uk
smdltd.co.uk 55 The White Book V4
PRO
DU
CT
DAT
A
Profile Properties
Section properties are calculated assisted by testing in accordance with Eurocode 3.
Thickness mm Steel Grade N/mm2 Coatings and Options Weight Moment of Inertia cm4/m
Height of Neutral
Axis mm
Area of Steel
mm2/mNominalDesign Thickness
(bare steel) S250 S350 S450Galv
(Z275)HD
(ZM310)Plastisol
(PF)InteriorLiner
Perfo-rated
Crushed Ends kg/m2 kN/m2
0.90 0.86 - - - - - 10.03 0.098 93.50 33.60 1216
1.00 0.96 - - - - - 11.12 0.109 102.10 33.60 1355
1.20 1.16 - - - - - 13.33 0.131 119.80 33.70 1633
DescriptionThe TR60 profile was SMD’s first trapezoidal profile, added to our product range in 1992. Further research and development in recent years has seen our trapezoidal products evolve into the TR+ range. The TR60+ profile enables un-propped spans in excess of 3.5m.
Benefits • Reduced concrete volume
• Enhanced speed of installation due to the 1m cover width
• Trough stiffeners positioned to ensure central stud position
1000 Cover width
333
133
6012
158
Concrete Volume and Weight
Fire Insulation ThicknessMinimum Insulation Thickness (x) of Concrete (mm)
The image and table above details the minimum insulation thickness required to suit fire design criteria in accordance with SCI PN005c-GB or BS5950 Part 8.
Fire Rating NWC LWC
1.0 Hour 60 60
1.5 Hour 70 70
2.0 Hour 80 80
3.0 Hour 115 100
4.0 Hour 130 115
Slab Depth Volume of Concrete Weight of Concrete (Normal Weight) Weight of Concrete (Lightweight)mm m³/m² Wet (kN/m²) Dry (kN/m²) Wet (kN/m²) Dry (kN/m²)
130 0.096 2.26 2.21 1.79 1.70
150 0.116 2.73 2.67 2.16 2.05
200 0.166 3.91 3.83 3.09 2.93Deflection – This table is based on concrete poured to a constant thickness and does not take account for deflection of the decking or supporting beams (as a guide, to account for the deflection of the decking, a concrete volume of span/250 should be added to the figures indicated). Concrete Weight – These tables indicate concrete weight only and do not include the weight of decking or reinforcement. Concrete weights are based on the concrete densities specified in BS EN 1991-1-1 as follows: Normal Weight Concrete – 2550kg/m³ (wet) and 2450 kg/m³ (dry). Lightweight Concrete – 2050kg/m³ (wet) and 1950 kg/m³ (dry).
smdltd.co.uk56 The White Book V4
Slab Depth (mm)
Span
Len
gth
(m)
150140130 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on A393 mesh. It may be possible to reduce mesh size by referencing load/span tables during Step 3.
Construction Stage
TR60+ 1.2mm
TR60+ 0.9mm
TR60+ 1.0mm
Min
for
1.5
hr F
ire
Min
for
2hr
Fire
10kN10kN
1hr 10kN1hr7.5kN5kN
7.5kN7.5kN
1hr Fire 1.5hr Fire 2hr Fire
Step 2, Composite slab graphSpan and slab depth guidance graphWith proposed profile and gauge determined at step 1 on page 5, review the graph below to consider whether Load and Fire rating govern the design. Construction stage governs (shown dashed) except where solid lines representing the different Load/Fire limits are shown.
*
Step 3, Refer to the pages below for spans
MES
H R
EIN
FOR
CEM
ENT
* Refer to Note 13 on Page 7
1.0 Hr Fire RatingA142Pg.58
A142Pg.64
A142Pg.70
A193Pg.59
A193Pg.65
A193Pg.71
2xA252Pg.62
2xA252Pg.68
2xA252Pg.74
A252Pg.60
A252Pg.66
A252Pg.72
2xA393Pg.63
2xA393Pg.69
2xA393Pg.75
A393Pg.61
A393Pg.67
A393Pg.73
1.5 Hr Fire Rating 2.0 Hr Fire Rating
MESH REINFORCEMENT
SLAB
GR
APH
smdltd.co.uk 57 The White Book V4
Slab Depth (mm)
Span
Len
gth
(m)
150140130 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on 30kg/m3≥ HE++ 1/50 Fibres. It may be possible to change fibre type and/or reduce the dosage by referencing load/span tables during Step 3.
Construction Stage
TR60+ 1.2mm
TR60+ 0.9mm
TR60+ 1.0mm
Min
for
1.5
hr F
ire
Min
for
2hr
Fire
10
kN7.5
kN10kN
7.5kN
10kN
7.5kN
5kN
1hr Fire 1.5hr Fire 2hr Fire
Step 2, Composite slab graphSpan and slab depth guidance graphWith proposed profile and gauge determined at step 1 on page 5, review the graph below to consider whether Load and Fire rating govern the design. Construction stage governs (shown dashed) except where solid lines representing the different Load/Fire limits are shown.
Step 3, Refer to the pages below for spans
FIB
RE
CO
NC
RET
E
1.0 Hr Fire Rating
HE++ 20kgPg.79
HE++ 20kgPg.85
HE++ 20kgPg.91
HE 25kgPg.76
HE 25kgPg.82
HE 25kgPg.88
HE++ 25kgPg.80
HE++ 25kgPg.86
HE++ 25kgPg.92
HE 30kgPg.77
HE 30kgPg.83
HE 30kgPg.89
HE++ 30kgPg.81
HE++ 30kgPg.87
HE++ 30kgPg.93
HE 35kgPg.78
HE 35kgPg.84
HE 35kgPg.90
1.5 Hr Fire Rating 2.0 Hr Fire Rating
STEEL FIBRE CONCRETE
SLAB
GR
APH
smdltd.co.uk58 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.219 3.219 2.657 2.391 3.476 3.476 2.726 2.453 3.854 3.854 2.858 2.573
130 3.125 3.125 2.796 2.519 3.383 3.383 2.870 2.585 3.746 3.746 3.011 2.711
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.581 3.581 2.657 2.391 3.867 3.711 2.726 2.453 4.374 3.891 2.858 2.573
130 3.455 3.455 2.796 2.519 3.788 3.788 2.870 2.585 4.238 4.238 3.011 2.711
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 59 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.215 3.215 2.738 2.461 3.476 3.476 2.804 2.523 3.850 3.850 2.934 2.641
130 3.125 3.125 2.875 2.589 3.375 3.375 2.945 2.653 3.742 3.742 3.281 2.773
140 3.038 3.038 3.038 2.719 3.288 3.288 3.288 2.781 3.649 3.649 3.484 2.907
150 3.006 3.006 3.006 2.843 3.203 3.203 3.203 2.914 3.562 3.562 3.562 3.046
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.579 3.579 2.738 2.461 3.864 3.812 2.804 2.523 4.370 3.984 2.934 2.641
130 3.451 3.451 2.875 2.589 3.784 3.784 2.945 2.653 4.234 4.234 3.077 2.773
140 3.335 3.335 3.007 2.719 3.660 3.660 3.081 2.781 4.110 4.110 3.219 2.907
150 3.230 3.230 3.141 2.843 3.546 3.546 3.219 2.914 3.996 3.996 3.366 3.046
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk60 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.120 3.120 2.953 2.660 3.375 3.375 3.312 2.719 3.738 3.738 3.438 2.835
140 3.038 3.038 3.038 2.781 3.288 3.288 3.288 2.850 3.645 3.645 3.645 2.969
150 3.004 3.004 3.004 2.907 3.203 3.203 3.203 2.976 3.558 3.558 3.558 3.350
160 2.961 2.961 2.961 2.961 3.125 3.125 3.125 3.125 3.480 3.480 3.480 3.480
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.447 3.447 2.953 2.660 3.781 3.781 3.023 2.719 4.230 4.230 3.149 2.835
140 3.331 3.331 3.085 2.781 3.657 3.657 3.149 2.850 4.106 4.106 3.288 2.969
150 3.226 3.226 3.211 2.907 3.542 3.542 3.288 2.976 3.992 3.992 3.422 3.100
160 3.129 3.129 3.129 3.023 3.438 3.438 3.407 3.093 3.936 3.936 3.554 3.219
170 3.040 3.040 3.040 3.040 3.341 3.341 3.341 3.203 3.895 3.895 3.672 3.335
180 2.957 2.957 2.957 2.957 3.253 3.253 3.253 3.253 3.792 3.792 3.792 3.453
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 61 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.116 3.116 3.116 2.812 3.366 3.366 3.366 2.866 3.730 3.730 3.730 2.969
140 3.031 3.031 3.031 2.926 3.281 3.281 3.281 2.984 3.637 3.637 3.637 3.484
150 2.998 2.998 2.998 2.998 3.195 3.195 3.195 3.195 3.550 3.550 3.550 3.550
160 2.953 2.953 2.953 2.953 3.124 3.124 3.124 3.124 3.472 3.472 3.472 3.472
170 2.876 2.876 2.876 2.876 3.050 3.050 3.050 3.050 3.403 3.403 3.403 3.403
180 2.812 2.812 2.812 2.812 2.984 2.984 2.984 2.984 3.335 3.335 3.335 3.335
190 2.750 2.750 2.750 2.750 2.922 2.922 2.922 2.922 3.277 3.277 3.277 3.277
200 2.688 2.688 2.688 2.688 2.866 2.866 2.866 2.866 3.219 3.219 3.219 3.219
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.414 2.414 2.414 2.414 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.608 2.608 2.608 2.608 2.984 2.984 2.984 2.984
A393
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.438 3.438 3.120 2.812 3.771 3.771 3.180 2.866 4.219 4.219 3.296 2.969
140 3.323 3.323 3.242 2.926 3.647 3.647 3.304 2.984 4.096 4.096 3.422 3.093
150 3.219 3.219 3.219 3.038 3.534 3.534 3.430 3.100 3.984 3.984 3.554 3.219
160 3.122 3.122 3.122 3.122 3.430 3.430 3.430 3.203 3.930 3.930 3.664 3.319
170 3.034 3.034 3.034 3.034 3.335 3.335 3.335 3.296 3.885 3.885 3.765 3.422
180 2.951 2.951 2.951 2.951 3.246 3.246 3.246 3.246 3.784 3.784 3.784 3.538
190 2.875 2.875 2.875 2.875 3.162 3.162 3.162 3.162 3.691 3.691 3.691 3.691
200 2.804 2.804 2.804 2.804 3.085 3.085 3.085 3.085 3.602 3.602 3.602 3.602
210 2.738 2.738 2.738 2.738 3.013 3.013 3.013 3.013 3.519 3.519 3.519 3.519
220 2.674 2.674 2.674 2.674 2.945 2.945 2.945 2.945 3.443 3.443 3.443 3.443
230 2.616 2.616 2.616 2.616 2.881 2.881 2.881 2.881 3.370 3.370 3.370 3.370
240 2.560 2.560 2.560 2.560 2.821 2.821 2.821 2.821 3.302 3.302 3.302 3.302
250 2.507 2.507 2.507 2.507 2.765 2.765 2.765 2.765 3.238 3.238 3.238 3.238
A393
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk62 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 3.023 3.023 3.023 3.023 3.273 3.273 3.273 3.273 3.629 3.629 3.629 3.629
150 2.994 2.994 2.994 2.994 3.191 3.191 3.191 3.191 3.546 3.546 3.546 3.546
160 2.945 2.945 2.945 2.945 3.116 3.116 3.116 3.116 3.469 3.469 3.469 3.469
170 2.875 2.875 2.875 2.875 3.046 3.046 3.046 3.046 3.399 3.399 3.399 3.399
180 2.808 2.808 2.808 2.808 2.984 2.984 2.984 2.984 3.331 3.331 3.331 3.331
190 2.746 2.746 2.746 2.746 2.922 2.922 2.922 2.922 3.273 3.273 3.273 3.273
200 2.688 2.688 2.688 2.688 2.862 2.862 2.862 2.862 3.215 3.215 3.215 3.215
210 2.600 2.600 2.600 2.600 2.808 2.808 2.808 2.808 3.164 3.164 3.164 3.164
220 2.500 2.500 2.500 2.500 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.407 2.407 2.407 2.407 2.711 2.711 2.711 2.711 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.023 3.023 3.023 3.023
250 2.242 2.242 2.242 2.242 2.616 2.616 2.616 2.616 2.984 2.984 2.984 2.984
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 3.317 3.317 3.317 3.149 3.641 3.641 3.546 3.203 4.089 4.089 4.000 3.296
150 3.213 3.213 3.213 3.213 3.527 3.527 3.527 3.304 3.976 3.976 3.765 3.407
160 3.116 3.116 3.116 3.116 3.424 3.424 3.424 3.375 3.925 3.925 3.843 3.484
170 3.029 3.029 3.029 3.029 3.327 3.327 3.327 3.327 3.879 3.879 3.879 3.562
180 2.947 2.947 2.947 2.947 3.240 3.240 3.240 3.240 3.777 3.777 3.777 3.649
190 2.870 2.870 2.870 2.870 3.157 3.157 3.157 3.157 3.684 3.684 3.684 3.684
200 2.800 2.800 2.800 2.800 3.081 3.081 3.081 3.081 3.596 3.596 3.596 3.596
210 2.734 2.734 2.734 2.734 3.009 3.009 3.009 3.009 3.515 3.515 3.515 3.515
220 2.670 2.670 2.670 2.670 2.941 2.941 2.941 2.941 3.438 3.438 3.438 3.438
230 2.612 2.612 2.612 2.612 2.877 2.877 2.877 2.877 3.366 3.366 3.366 3.366
240 2.556 2.556 2.556 2.556 2.817 2.817 2.817 2.817 3.298 3.298 3.298 3.298
250 2.505 2.505 2.505 2.505 2.761 2.761 2.761 2.761 3.234 3.234 3.234 3.234
2xA2
52
1.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 63 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 ** ** ** ** ** ** ** ** ** ** ** **
150 2.984 2.984 2.984 2.984 3.180 3.180 3.180 3.180 3.531 3.531 3.531 3.531
160 2.938 2.938 2.938 2.938 3.108 3.108 3.108 3.108 3.457 3.457 3.457 3.457
170 2.866 2.866 2.866 2.866 3.038 3.038 3.038 3.038 3.387 3.387 3.387 3.387
180 2.796 2.796 2.796 2.796 2.969 2.969 2.969 2.969 3.323 3.323 3.323 3.323
190 2.734 2.734 2.734 2.734 2.875 2.875 2.875 2.875 3.261 3.261 3.261 3.261
200 2.680 2.680 2.680 2.680 2.854 2.854 2.854 2.854 3.207 3.207 3.207 3.207
210 2.585 2.585 2.585 2.585 2.800 2.800 2.800 2.800 3.153 3.153 3.153 3.153
220 2.484 2.484 2.484 2.484 2.750 2.750 2.750 2.750 3.104 3.104 3.104 3.104
230 2.391 2.391 2.391 2.391 2.703 2.703 2.703 2.703 3.062 3.062 3.062 3.062
240 2.312 2.312 2.312 2.312 2.657 2.657 2.657 2.657 3.015 3.015 3.015 3.015
250 2.234 2.234 2.234 2.234 2.608 2.608 2.608 2.608 2.976 2.976 2.976 2.976
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 ** ** ** ** ** ** ** ** ** ** ** **
150 3.197 3.197 3.197 3.197 3.511 3.511 3.511 3.511 3.961 3.961 3.961 3.657
160 3.102 3.102 3.102 3.102 3.408 3.408 3.408 3.408 3.912 3.912 3.912 3.719
170 3.015 3.015 3.015 3.015 3.315 3.315 3.315 3.315 3.862 3.862 3.862 3.750
180 2.934 2.934 2.934 2.934 3.226 3.226 3.226 3.226 3.763 3.763 3.763 3.763
190 2.858 2.858 2.858 2.858 3.145 3.145 3.145 3.145 3.672 3.672 3.672 3.672
200 2.788 2.788 2.788 2.788 3.069 3.069 3.069 3.069 3.585 3.585 3.585 3.585
210 2.722 2.722 2.722 2.722 2.998 2.998 2.998 2.998 3.503 3.503 3.503 3.503
220 2.662 2.662 2.662 2.662 2.930 2.930 2.930 2.930 3.426 3.426 3.426 3.426
230 2.604 2.604 2.604 2.604 2.868 2.868 2.868 2.868 3.354 3.354 3.354 3.354
240 2.548 2.548 2.548 2.548 2.808 2.808 2.808 2.808 3.288 3.288 3.288 3.288
250 2.496 2.496 2.496 2.496 2.753 2.753 2.753 2.753 3.222 3.222 3.222 3.222
2xA3
93
1.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk64 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.343 2.116 3.383 3.383 2.403 2.168 3.746 3.742 2.515 2.273
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.455 3.149 2.343 2.116 3.788 3.226 2.403 2.168 4.238 3.375 2.515 2.273
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 65 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.438 2.199 3.375 3.375 2.492 2.250 3.742 3.742 2.600 2.346
140 3.038 3.038 2.538 2.292 3.288 3.288 2.593 2.346 3.649 3.649 2.707 2.445
150 3.006 3.006 2.641 2.391 3.203 3.203 2.703 2.445 3.562 3.562 2.815 2.550
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.451 3.273 2.438 2.199 3.784 3.350 2.492 2.250 4.234 3.492 2.600 2.346
140 3.335 3.335 2.538 2.292 3.660 3.453 2.593 2.346 4.110 3.600 2.707 2.445
150 3.230 3.230 2.641 2.391 3.546 3.546 2.703 2.445 3.996 3.711 2.815 2.550
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk66 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.120 3.120 2.538 2.288 3.375 3.375 2.589 2.335 3.738 3.738 2.688 2.426
140 3.038 3.038 2.626 2.375 3.288 3.288 2.684 2.426 3.645 3.645 2.788 2.523
150 3.004 3.004 2.726 2.469 3.203 3.203 2.781 2.523 3.558 3.558 2.895 2.624
160 2.961 2.961 2.827 2.565 3.125 3.125 2.887 2.620 3.480 3.480 3.000 2.726
170 2.883 2.883 2.883 2.672 3.054 3.054 3.000 2.726 3.407 3.407 3.407 2.835
180 2.819 2.819 2.819 2.777 2.992 2.992 2.992 2.835 3.343 3.343 3.343 2.945
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.447 3.407 2.538 2.288 3.781 3.476 2.589 2.335 4.230 3.608 2.688 2.426
140 3.331 3.331 2.626 2.375 3.657 3.569 2.684 2.426 4.106 4.000 2.788 2.523
150 3.226 3.226 2.726 2.469 3.542 3.542 2.781 2.523 3.992 3.819 2.895 2.624
160 3.129 3.129 2.827 2.565 3.438 3.438 2.887 2.620 3.936 3.922 3.000 2.726
170 3.040 3.040 2.938 2.672 3.341 3.341 3.000 2.726 3.895 3.895 3.116 2.835
180 2.957 2.957 2.957 2.777 3.253 3.253 3.108 2.835 3.792 3.792 3.234 2.945
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 67 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.116 3.116 2.734 2.465 3.366 3.366 2.777 2.507 3.730 3.730 2.866 2.585
140 3.031 3.031 2.819 2.546 3.281 3.281 2.866 2.593 3.637 3.637 2.961 2.672
150 2.998 2.998 2.907 2.633 3.195 3.195 2.961 2.680 3.550 3.550 3.550 2.769
160 2.953 2.953 2.953 2.719 3.124 3.124 3.124 2.773 3.472 3.472 3.472 2.866
170 2.876 2.876 2.876 2.819 3.050 3.050 3.050 2.866 3.403 3.403 3.403 2.969
180 2.812 2.812 2.812 2.812 2.984 2.984 2.984 2.984 3.335 3.335 3.335 3.335
190 2.750 2.750 2.750 2.750 2.922 2.922 2.922 2.922 3.277 3.277 3.277 3.277
200 2.688 2.688 2.688 2.688 2.866 2.866 2.866 2.866 3.219 3.219 3.219 3.219
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.414 2.414 2.414 2.414 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.608 2.608 2.608 2.608 2.984 2.984 2.984 2.984
A393
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.438 3.438 2.734 2.465 3.771 3.734 2.777 2.507 4.219 4.219 2.866 2.585
140 3.323 3.323 2.819 2.546 3.647 3.647 2.866 2.593 4.096 4.096 2.961 2.672
150 3.219 3.219 2.907 2.633 3.534 3.534 2.961 2.680 3.984 3.984 3.054 2.769
160 3.122 3.122 3.000 2.719 3.430 3.430 3.054 2.773 3.930 3.930 3.157 2.866
170 3.034 3.034 3.034 2.819 3.335 3.335 3.157 2.866 3.885 3.885 3.265 2.969
180 2.951 2.951 2.951 2.951 3.246 3.246 3.246 2.976 3.784 3.784 3.366 3.062
190 2.875 2.875 2.875 2.875 3.162 3.162 3.162 3.125 3.691 3.691 3.469 3.164
200 2.804 2.804 2.804 2.804 3.085 3.085 3.085 3.085 3.602 3.602 3.602 3.296
210 2.738 2.738 2.738 2.738 3.013 3.013 3.013 3.013 3.519 3.519 3.519 3.461
220 2.674 2.674 2.674 2.674 2.945 2.945 2.945 2.945 3.443 3.443 3.443 3.443
230 2.616 2.616 2.616 2.616 2.881 2.881 2.881 2.881 3.370 3.370 3.370 3.370
240 2.560 2.560 2.560 2.560 2.821 2.821 2.821 2.821 3.302 3.302 3.302 3.302
250 2.507 2.507 2.507 2.507 2.765 2.765 2.765 2.765 3.238 3.238 3.238 3.238
A393
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk68 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 3.023 3.023 3.023 2.827 3.273 3.273 3.273 2.866 3.629 3.629 3.629 2.938
150 2.994 2.994 2.994 2.895 3.191 3.191 3.191 2.938 3.546 3.546 3.546 3.515
160 2.945 2.945 2.945 2.945 3.116 3.116 3.116 3.116 3.469 3.469 3.469 3.469
170 2.875 2.875 2.875 2.875 3.046 3.046 3.046 3.046 3.399 3.399 3.399 3.399
180 2.808 2.808 2.808 2.808 2.984 2.984 2.984 2.984 3.331 3.331 3.331 3.331
190 2.746 2.746 2.746 2.746 2.922 2.922 2.922 2.922 3.273 3.273 3.273 3.273
200 2.688 2.688 2.688 2.688 2.862 2.862 2.862 2.862 3.215 3.215 3.215 3.215
210 2.600 2.600 2.600 2.600 2.808 2.808 2.808 2.808 3.164 3.164 3.164 3.164
220 2.500 2.500 2.500 2.500 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.407 2.407 2.407 2.407 2.711 2.711 2.711 2.711 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.023 3.023 3.023 3.023
250 2.242 2.242 2.242 2.242 2.616 2.616 2.616 2.616 2.984 2.984 2.984 2.984
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 3.317 3.317 3.133 2.827 3.641 3.641 3.172 2.866 4.089 4.089 3.250 2.938
150 3.213 3.213 3.195 2.895 3.527 3.527 3.242 2.938 3.976 3.976 3.327 3.015
160 3.116 3.116 3.116 2.969 3.424 3.424 3.319 3.007 3.925 3.925 3.407 3.093
170 3.029 3.029 3.029 3.029 3.327 3.327 3.327 3.085 3.879 3.879 3.492 3.172
180 2.947 2.947 2.947 2.947 3.240 3.240 3.240 3.164 3.777 3.777 3.577 3.257
190 2.870 2.870 2.870 2.870 3.157 3.157 3.157 3.157 3.684 3.684 3.657 3.335
200 2.800 2.800 2.800 2.800 3.081 3.081 3.081 3.081 3.596 3.596 3.596 3.422
210 2.734 2.734 2.734 2.734 3.009 3.009 3.009 3.009 3.515 3.515 3.515 3.515
220 2.670 2.670 2.670 2.670 2.941 2.941 2.941 2.941 3.438 3.438 3.438 3.438
230 2.612 2.612 2.612 2.612 2.877 2.877 2.877 2.877 3.366 3.366 3.366 3.366
240 2.556 2.556 2.556 2.556 2.817 2.817 2.817 2.817 3.298 3.298 3.298 3.298
250 2.505 2.505 2.505 2.505 2.761 2.761 2.761 2.761 3.234 3.234 3.234 3.234
2xA2
52
1.
5 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 69 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 ** ** ** ** ** ** ** ** ** ** ** **
150 2.984 2.984 2.984 2.984 3.180 3.180 3.180 3.180 3.531 3.531 3.531 3.531
160 2.938 2.938 2.938 2.938 3.108 3.108 3.108 3.108 3.457 3.457 3.457 3.457
170 2.866 2.866 2.866 2.866 3.038 3.038 3.038 3.038 3.387 3.387 3.387 3.387
180 2.796 2.796 2.796 2.796 2.969 2.969 2.969 2.969 3.323 3.323 3.323 3.323
190 2.734 2.734 2.734 2.734 2.875 2.875 2.875 2.875 3.261 3.261 3.261 3.261
200 2.680 2.680 2.680 2.680 2.854 2.854 2.854 2.854 3.207 3.207 3.207 3.207
210 2.585 2.585 2.585 2.585 2.800 2.800 2.800 2.800 3.153 3.153 3.153 3.153
220 2.484 2.484 2.484 2.484 2.750 2.750 2.750 2.750 3.104 3.104 3.104 3.104
230 2.391 2.391 2.391 2.391 2.703 2.703 2.703 2.703 3.062 3.062 3.062 3.062
240 2.312 2.312 2.312 2.312 2.657 2.657 2.657 2.657 3.015 3.015 3.015 3.015
250 2.234 2.234 2.234 2.234 2.608 2.608 2.608 2.608 2.976 2.976 2.976 2.976
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 ** ** ** ** ** ** ** ** ** ** ** **
140 ** ** ** ** ** ** ** ** ** ** ** **
150 3.197 3.197 3.197 3.197 3.511 3.511 3.511 3.242 3.961 3.961 3.657 3.304
160 3.102 3.102 3.102 3.102 3.408 3.408 3.408 3.312 3.912 3.912 3.726 3.375
170 3.015 3.015 3.015 3.015 3.315 3.315 3.315 3.315 3.862 3.862 3.796 3.453
180 2.934 2.934 2.934 2.934 3.226 3.226 3.226 3.226 3.763 3.763 3.763 3.515
190 2.858 2.858 2.858 2.858 3.145 3.145 3.145 3.145 3.672 3.672 3.672 3.569
200 2.788 2.788 2.788 2.788 3.069 3.069 3.069 3.069 3.585 3.585 3.585 3.585
210 2.722 2.722 2.722 2.722 2.998 2.998 2.998 2.998 3.503 3.503 3.503 3.503
220 2.662 2.662 2.662 2.662 2.930 2.930 2.930 2.930 3.426 3.426 3.426 3.426
230 2.604 2.604 2.604 2.604 2.868 2.868 2.868 2.868 3.354 3.354 3.354 3.354
240 2.548 2.548 2.548 2.548 2.808 2.808 2.808 2.808 3.288 3.288 3.288 3.288
250 2.496 2.496 2.496 2.496 2.753 2.753 2.753 2.753 3.222 3.222 3.222 3.222
2xA3
93
1.
5 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk70 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 71 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.281 2.062 3.288 3.288 2.327 2.104 3.649 3.608 2.414 2.184
150 3.006 3.006 2.366 2.145 3.203 3.203 2.414 2.188 3.562 3.562 2.503 2.269
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.335 3.031 2.281 2.062 3.660 3.093 2.327 2.104 4.110 3.203 2.414 2.184
150 3.230 3.116 2.366 2.145 3.546 3.180 2.414 2.188 3.996 3.296 2.503 2.269
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk72 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.387 2.157 3.288 3.288 2.430 2.195 3.645 3.645 2.507 2.269
150 3.004 3.004 2.469 2.234 3.203 3.203 2.511 2.273 3.558 3.558 2.593 2.350
160 2.961 2.961 2.554 2.319 3.125 3.125 2.600 2.358 3.480 3.480 2.688 2.438
170 2.883 2.883 2.649 2.410 3.054 3.054 2.695 2.453 3.407 3.407 2.788 2.531
180 2.819 2.819 2.781 2.538 2.992 2.992 2.796 2.546 3.343 3.343 2.891 2.633
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.331 3.172 2.387 2.157 3.657 3.226 2.430 2.195 4.106 3.335 2.507 2.269
150 3.226 3.226 2.469 2.234 3.542 3.304 2.511 2.273 3.992 3.414 2.593 2.350
160 3.129 3.129 2.554 2.319 3.438 3.399 2.600 2.358 3.936 3.507 2.688 2.438
170 3.040 3.040 2.649 2.410 3.341 3.341 2.695 2.453 3.895 3.608 2.788 2.531
180 2.957 2.957 2.781 2.538 3.253 3.253 2.796 2.546 3.792 3.719 2.891 2.633
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 73 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.031 3.031 2.600 2.350 3.281 3.281 2.633 2.383 3.637 3.637 2.703 2.445
150 2.998 2.998 2.672 2.422 3.195 3.195 2.711 2.453 3.550 3.550 2.781 2.523
160 2.953 2.953 2.765 2.511 3.124 3.124 2.788 2.531 3.472 3.472 2.866 2.600
170 2.876 2.876 2.876 2.641 3.050 3.050 2.922 2.657 3.403 3.403 2.961 2.688
180 2.812 2.812 2.812 2.788 2.984 2.984 2.984 2.796 3.335 3.335 3.335 2.823
190 2.750 2.750 2.750 2.750 2.922 2.922 2.922 2.922 3.277 3.277 3.277 2.961
200 2.688 2.688 2.688 2.688 2.866 2.866 2.866 2.866 3.219 3.219 3.219 3.219
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.414 2.414 2.414 2.414 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.608 2.608 2.608 2.608 2.984 2.984 2.984 2.984
A393
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.323 3.323 2.600 2.350 3.647 3.500 2.633 2.383 4.096 4.031 2.703 2.445
150 3.219 3.219 2.672 2.422 3.534 3.534 2.711 2.453 3.984 3.664 2.781 2.523
160 3.122 3.122 2.765 2.511 3.430 3.430 2.788 2.531 3.930 3.742 2.866 2.600
170 3.034 3.034 2.907 2.641 3.335 3.335 2.922 2.657 3.885 3.835 2.961 2.688
180 2.951 2.951 2.951 2.788 3.246 3.246 3.069 2.796 3.784 3.784 3.100 2.823
190 2.875 2.875 2.875 2.875 3.162 3.162 3.162 2.945 3.691 3.691 3.250 2.961
200 2.804 2.804 2.804 2.804 3.085 3.085 3.085 3.085 3.602 3.602 3.407 3.116
210 2.738 2.738 2.738 2.738 3.013 3.013 3.013 3.013 3.519 3.519 3.519 3.296
220 2.674 2.674 2.674 2.674 2.945 2.945 2.945 2.945 3.443 3.443 3.443 3.443
230 2.616 2.616 2.616 2.616 2.881 2.881 2.881 2.881 3.370 3.370 3.370 3.370
240 2.560 2.560 2.560 2.560 2.821 2.821 2.821 2.821 3.302 3.302 3.302 3.302
250 2.507 2.507 2.507 2.507 2.765 2.765 2.765 2.765 3.238 3.238 3.238 3.238
A393
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk74 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.023 3.023 2.907 2.625 3.273 3.273 2.938 2.657 3.629 3.629 3.000 2.711
150 2.994 2.994 2.994 2.711 3.191 3.191 3.191 2.742 3.546 3.546 3.546 2.796
160 2.945 2.945 2.945 2.769 3.116 3.116 3.116 2.804 3.469 3.469 3.469 2.858
170 2.875 2.875 2.875 2.835 3.046 3.046 3.046 2.866 3.399 3.399 3.399 2.930
180 2.808 2.808 2.808 2.808 2.984 2.984 2.984 2.938 3.331 3.331 3.331 3.331
190 2.746 2.746 2.746 2.746 2.922 2.922 2.922 2.922 3.273 3.273 3.273 3.273
200 2.688 2.688 2.688 2.688 2.862 2.862 2.862 2.862 3.215 3.215 3.215 3.215
210 2.600 2.600 2.600 2.600 2.808 2.808 2.808 2.808 3.164 3.164 3.164 3.164
220 2.500 2.500 2.500 2.500 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.407 2.407 2.407 2.407 2.711 2.711 2.711 2.711 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.023 3.023 3.023 3.023
250 2.242 2.242 2.242 2.242 2.616 2.616 2.616 2.616 2.984 2.984 2.984 2.984
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.317 3.317 2.907 2.625 3.641 3.641 2.938 2.657 4.089 4.089 3.000 2.711
150 3.213 3.213 3.000 2.711 3.527 3.527 3.031 2.742 3.976 3.976 3.093 2.796
160 3.116 3.116 3.054 2.769 3.424 3.424 3.085 2.804 3.925 3.925 3.157 2.858
170 3.029 3.029 3.029 2.835 3.327 3.327 3.157 2.866 3.879 3.879 3.226 2.930
180 2.947 2.947 2.947 2.914 3.240 3.240 3.226 2.938 3.777 3.777 3.296 3.007
190 2.870 2.870 2.870 2.870 3.157 3.157 3.157 3.046 3.684 3.684 3.375 3.077
200 2.800 2.800 2.800 2.800 3.081 3.081 3.081 3.081 3.596 3.596 3.507 3.203
210 2.734 2.734 2.734 2.734 3.009 3.009 3.009 3.009 3.515 3.515 3.515 3.350
220 2.670 2.670 2.670 2.670 2.941 2.941 2.941 2.941 3.438 3.438 3.438 3.438
230 2.612 2.612 2.612 2.612 2.877 2.877 2.877 2.877 3.366 3.366 3.366 3.366
240 2.556 2.556 2.556 2.556 2.817 2.817 2.817 2.817 3.298 3.298 3.298 3.298
250 2.505 2.505 2.505 2.505 2.761 2.761 2.761 2.761 3.234 3.234 3.234 3.234
2xA2
52
2.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 75 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 2.984 2.984 2.984 2.984 3.180 3.180 3.180 3.180 3.531 3.531 3.531 3.531
160 2.938 2.938 2.938 2.938 3.108 3.108 3.108 3.108 3.457 3.457 3.457 3.457
170 2.866 2.866 2.866 2.866 3.038 3.038 3.038 3.038 3.387 3.387 3.387 3.387
180 2.796 2.796 2.796 2.796 2.969 2.969 2.969 2.969 3.323 3.323 3.323 3.323
190 2.734 2.734 2.734 2.734 2.875 2.875 2.875 2.875 3.261 3.261 3.261 3.261
200 2.680 2.680 2.680 2.680 2.854 2.854 2.854 2.854 3.207 3.207 3.207 3.207
210 2.585 2.585 2.585 2.585 2.800 2.800 2.800 2.800 3.153 3.153 3.153 3.153
220 2.484 2.484 2.484 2.484 2.750 2.750 2.750 2.750 3.104 3.104 3.104 3.104
230 2.391 2.391 2.391 2.391 2.703 2.703 2.703 2.703 3.062 3.062 3.062 3.062
240 2.312 2.312 2.312 2.312 2.657 2.657 2.657 2.657 3.015 3.015 3.015 3.015
250 2.234 2.234 2.234 2.234 2.608 2.608 2.608 2.608 2.976 2.976 2.976 2.976
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 3.197 3.197 3.197 3.046 3.511 3.511 3.391 3.069 3.961 3.961 3.438 3.116
160 3.102 3.102 3.102 3.100 3.408 3.408 3.408 3.125 3.912 3.912 3.500 3.172
170 3.015 3.015 3.015 3.015 3.315 3.315 3.315 3.188 3.862 3.862 3.562 3.234
180 2.934 2.934 2.934 2.934 3.226 3.226 3.226 3.226 3.763 3.763 3.625 3.296
190 2.858 2.858 2.858 2.858 3.145 3.145 3.145 3.145 3.672 3.672 3.672 3.375
200 2.788 2.788 2.788 2.788 3.069 3.069 3.069 3.069 3.585 3.585 3.585 3.492
210 2.722 2.722 2.722 2.722 2.998 2.998 2.998 2.998 3.503 3.503 3.503 3.503
220 2.662 2.662 2.662 2.662 2.930 2.930 2.930 2.930 3.426 3.426 3.426 3.426
230 2.604 2.604 2.604 2.604 2.868 2.868 2.868 2.868 3.354 3.354 3.354 3.354
240 2.548 2.548 2.548 2.548 2.808 2.808 2.808 2.808 3.288 3.288 3.288 3.288
250 2.496 2.496 2.496 2.496 2.753 2.753 2.753 2.753 3.222 3.222 3.222 3.222
2xA3
93
2.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk76 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.219 3.219 2.866 2.577 3.476 3.476 2.930 2.633 3.854 3.854 3.054 2.742
130 3.125 3.125 3.125 2.773 3.376 3.376 3.366 2.835 3.746 3.746 3.500 2.945
140 3.038 3.038 3.038 2.969 3.288 3.288 3.288 3.219 3.649 3.649 3.649 3.327
150 3.006 3.006 3.006 3.006 3.203 3.203 3.203 3.203 3.562 3.562 3.562 3.562
160 2.961 2.961 2.961 2.961 3.126 3.126 3.126 3.126 3.484 3.484 3.484 3.484
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.410 3.410 3.410 3.410
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.583 3.583 2.866 2.577 3.867 3.867 2.930 2.633 4.374 4.374 3.054 2.742
130 3.453 3.453 3.077 2.773 3.788 3.788 3.141 2.835 4.238 4.238 3.265 2.945
140 3.337 3.337 3.288 2.969 3.662 3.662 3.358 3.031 4.112 4.112 3.484 3.141
150 3.230 3.230 3.230 3.157 3.546 3.546 3.546 3.219 3.996 3.996 3.688 3.335
160 3.133 3.133 3.133 3.133 3.441 3.441 3.441 3.391 3.938 3.938 3.875 3.507
170 3.042 3.042 3.042 3.042 3.343 3.343 3.343 3.343 3.895 3.895 3.895 3.672
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
1
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 77 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.219 3.219 2.914 2.620 3.476 3.476 2.976 2.680 3.850 3.850 3.265 2.788
130 3.125 3.125 3.125 2.827 3.375 3.375 3.375 2.883 3.742 3.742 3.593 2.992
140 3.038 3.038 3.038 3.038 3.288 3.288 3.288 3.288 3.649 3.649 3.649 3.422
150 3.005 3.005 3.005 3.005 3.203 3.203 3.203 3.203 3.558 3.558 3.558 3.558
160 2.961 2.961 2.961 2.961 3.125 3.125 3.125 3.125 3.480 3.480 3.480 3.480
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.750 2.750 2.750 2.750 2.926 2.926 2.926 2.926 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.866 2.866 2.866 2.866 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.761 2.761 2.761 2.761 3.116 3.116 3.116 3.116
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.581 3.581 2.914 2.620 3.865 3.865 2.976 2.680 4.370 4.370 3.100 2.788
130 3.453 3.453 3.133 2.827 3.786 3.786 3.203 2.883 4.234 4.234 3.319 2.992
140 3.335 3.335 3.335 3.031 3.660 3.660 3.422 3.085 4.108 4.108 3.546 3.195
150 3.228 3.228 3.228 3.226 3.544 3.544 3.544 3.288 3.994 3.994 3.757 3.399
160 3.129 3.129 3.129 3.129 3.438 3.438 3.438 3.438 3.937 3.937 3.937 3.577
170 3.040 3.040 3.040 3.040 3.341 3.341 3.341 3.341 3.893 3.893 3.893 3.742
180 2.957 2.957 2.957 2.957 3.250 3.250 3.250 3.250 3.790 3.790 3.790 3.790
190 2.879 2.879 2.879 2.879 3.166 3.166 3.166 3.166 3.695 3.695 3.695 3.695
200 2.806 2.806 2.806 2.806 3.089 3.089 3.089 3.089 3.606 3.606 3.606 3.606
210 2.738 2.738 2.738 2.738 3.015 3.015 3.015 3.015 3.523 3.523 3.523 3.523
220 2.676 2.676 2.676 2.676 2.947 2.947 2.947 2.947 3.445 3.445 3.445 3.445
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
30kg
1
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk78 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.215 3.215 2.961 2.664 3.476 3.476 3.203 2.719 3.850 3.850 3.327 2.827
130 3.125 3.125 3.125 2.875 3.375 3.375 3.375 2.930 3.742 3.742 3.672 3.038
140 3.038 3.038 3.038 3.038 3.288 3.288 3.288 3.288 3.645 3.645 3.645 3.500
150 3.003 3.003 3.003 3.003 3.203 3.203 3.203 3.203 3.558 3.558 3.558 3.558
160 2.953 2.953 2.953 2.953 3.125 3.125 3.125 3.125 3.476 3.476 3.476 3.476
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.812 2.812 2.812 2.812 2.984 2.984 2.984 2.984 3.339 3.339 3.339 3.339
190 2.750 2.750 2.750 2.750 2.922 2.922 2.922 2.922 3.277 3.277 3.277 3.277
200 2.691 2.691 2.691 2.691 2.866 2.866 2.866 2.866 3.219 3.219 3.219 3.219
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.500 2.500 2.500 2.500 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.407 2.407 2.407 2.407 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.023 3.023 3.023 3.023
250 2.242 2.242 2.242 2.242 2.616 2.616 2.616 2.616 2.984 2.984 2.984 2.984
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.579 3.579 2.961 2.664 3.864 3.864 3.023 2.719 4.370 4.370 3.141 2.827
130 3.449 3.449 3.188 2.875 3.784 3.784 3.250 2.930 4.232 4.232 3.366 3.038
140 3.333 3.333 3.333 3.085 3.657 3.657 3.476 3.141 4.108 4.108 3.593 3.246
150 3.226 3.226 3.226 3.226 3.542 3.542 3.542 3.343 3.992 3.992 3.819 3.453
160 3.129 3.129 3.129 3.129 3.436 3.436 3.436 3.436 3.935 3.935 3.935 3.641
170 3.038 3.038 3.038 3.038 3.339 3.339 3.339 3.339 3.891 3.891 3.891 3.812
180 2.955 2.955 2.955 2.955 3.248 3.248 3.248 3.248 3.788 3.788 3.788 3.788
190 2.876 2.876 2.876 2.876 3.164 3.164 3.164 3.164 3.693 3.693 3.693 3.693
200 2.804 2.804 2.804 2.804 3.085 3.085 3.085 3.085 3.604 3.604 3.604 3.604
210 2.738 2.738 2.738 2.738 3.013 3.013 3.013 3.013 3.519 3.519 3.519 3.519
220 2.674 2.674 2.674 2.674 2.945 2.945 2.945 2.945 3.441 3.441 3.441 3.441
230 2.614 2.614 2.614 2.614 2.879 2.879 2.879 2.879 3.368 3.368 3.368 3.368
240 2.558 2.558 2.558 2.558 2.819 2.819 2.819 2.819 3.300 3.300 3.300 3.300
250 2.505 2.505 2.505 2.505 2.761 2.761 2.761 2.761 3.234 3.234 3.234 3.234
HE
35kg
1
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 79 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.219 3.219 2.914 2.620 3.476 3.476 2.976 2.676 3.854 3.854 3.257 2.781
130 3.125 3.125 3.125 2.823 3.383 3.383 3.383 2.883 3.746 3.746 3.577 2.992
140 3.038 3.038 3.038 3.038 3.288 3.288 3.288 3.288 3.649 3.649 3.649 3.407
150 3.007 3.007 3.007 3.007 3.207 3.207 3.207 3.207 3.562 3.562 3.562 3.562
160 2.961 2.961 2.961 2.961 3.133 3.133 3.133 3.133 3.484 3.484 3.484 3.484
170 2.891 2.891 2.891 2.891 3.062 3.062 3.062 3.062 3.410 3.410 3.410 3.410
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.757 2.757 2.757 2.757 2.930 2.930 2.930 2.930 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.874 2.874 2.874 2.874 3.226 3.226 3.226 3.226
210 2.616 2.616 2.616 2.616 2.819 2.819 2.819 2.819 3.172 3.172 3.172 3.172
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.585 3.585 2.914 2.620 3.869 3.869 2.976 2.676 4.375 4.375 3.093 2.781
130 3.457 3.457 3.133 2.823 3.790 3.790 3.195 2.883 4.238 4.238 3.319 2.992
140 3.339 3.339 3.339 3.023 3.664 3.664 3.414 3.085 4.114 4.114 3.538 3.195
150 3.232 3.232 3.232 3.226 3.550 3.550 3.550 3.281 3.998 3.998 3.750 3.391
160 3.135 3.135 3.135 3.135 3.443 3.443 3.443 3.443 3.940 3.940 3.940 3.577
170 3.044 3.044 3.044 3.044 3.346 3.346 3.346 3.346 3.899 3.899 3.899 3.742
180 2.961 2.961 2.961 2.961 3.255 3.255 3.255 3.255 3.796 3.796 3.796 3.796
190 2.883 2.883 2.883 2.883 3.172 3.172 3.172 3.172 3.699 3.699 3.699 3.699
200 2.810 2.810 2.810 2.810 3.093 3.093 3.093 3.093 3.612 3.612 3.612 3.612
210 2.742 2.742 2.742 2.742 3.019 3.019 3.019 3.019 3.527 3.527 3.527 3.527
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE+
+ 20
kg
1.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk80 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.219 3.219 2.976 2.680 3.476 3.476 3.226 2.734 3.854 3.854 3.343 2.835
130 3.125 3.125 3.125 2.891 3.376 3.376 3.376 2.945 3.746 3.746 3.719 3.054
140 3.038 3.038 3.038 3.038 3.288 3.288 3.288 3.288 3.649 3.649 3.649 3.531
150 3.006 3.006 3.006 3.006 3.203 3.203 3.203 3.203 3.562 3.562 3.562 3.562
160 2.961 2.961 2.961 2.961 3.126 3.126 3.126 3.126 3.484 3.484 3.484 3.484
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.410 3.410 3.410 3.410
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.757 2.757 2.757 2.757 2.930 2.930 2.930 2.930 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.870 2.870 2.870 2.870 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.172 3.172 3.172 3.172
220 2.515 2.515 2.515 2.515 2.765 2.765 2.765 2.765 3.120 3.120 3.120 3.120
230 2.422 2.422 2.422 2.422 2.688 2.688 2.688 2.688 3.073 3.073 3.073 3.073
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.625 2.625 2.625 2.625 2.988 2.988 2.988 2.988
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.583 3.583 2.976 2.680 3.867 3.867 3.038 2.734 4.374 4.374 3.157 2.835
130 3.453 3.453 3.211 2.891 3.788 3.788 3.273 2.945 4.238 4.238 3.391 3.054
140 3.337 3.337 3.337 3.100 3.662 3.662 3.500 3.157 4.112 4.112 3.616 3.265
150 3.230 3.230 3.230 3.230 3.546 3.546 3.546 3.366 3.996 3.996 3.843 3.476
160 3.133 3.133 3.133 3.133 3.441 3.441 3.441 3.441 3.938 3.938 3.938 3.664
170 3.042 3.042 3.042 3.042 3.343 3.343 3.343 3.343 3.895 3.895 3.895 3.835
180 2.959 2.959 2.959 2.959 3.253 3.253 3.253 3.253 3.792 3.792 3.792 3.792
190 2.881 2.881 2.881 2.881 3.168 3.168 3.168 3.168 3.697 3.697 3.697 3.697
200 2.808 2.808 2.808 2.808 3.091 3.091 3.091 3.091 3.608 3.608 3.608 3.608
210 2.742 2.742 2.742 2.742 3.017 3.017 3.017 3.017 3.525 3.525 3.525 3.525
220 2.678 2.678 2.678 2.678 2.949 2.949 2.949 2.949 3.447 3.447 3.447 3.447
230 2.618 2.618 2.618 2.618 2.883 2.883 2.883 2.883 3.374 3.374 3.374 3.374
240 2.562 2.562 2.562 2.562 2.823 2.823 2.823 2.823 3.304 3.304 3.304 3.304
250 2.509 2.509 2.509 2.509 2.765 2.765 2.765 2.765 3.238 3.238 3.238 3.238
HE+
+ 25
kg
1.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 81 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 3.219 3.219 3.219 2.711 3.476 3.476 3.288 2.765 3.850 3.850 3.407 2.874
130 3.125 3.125 3.125 2.930 3.375 3.375 3.375 2.984 3.742 3.742 3.742 3.273
140 3.038 3.038 3.038 3.038 3.288 3.288 3.288 3.288 3.649 3.649 3.649 3.608
150 3.005 3.005 3.005 3.005 3.203 3.203 3.203 3.203 3.558 3.558 3.558 3.558
160 2.961 2.961 2.961 2.961 3.125 3.125 3.125 3.125 3.480 3.480 3.480 3.480
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.750 2.750 2.750 2.750 2.926 2.926 2.926 2.926 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.866 2.866 2.866 2.866 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.761 2.761 2.761 2.761 3.116 3.116 3.116 3.116
230 2.414 2.414 2.414 2.414 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.608 2.608 2.608 2.608 2.984 2.984 2.984 2.984
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 3.581 3.581 3.019 2.711 3.865 3.865 3.077 2.765 4.370 4.370 3.195 2.874
130 3.453 3.453 3.257 2.930 3.786 3.786 3.319 2.984 4.234 4.234 3.430 3.093
140 3.335 3.335 3.335 3.149 3.660 3.660 3.554 3.203 4.108 4.108 3.664 3.312
150 3.228 3.228 3.228 3.228 3.544 3.544 3.544 3.422 3.994 3.994 3.899 3.523
160 3.129 3.129 3.129 3.129 3.438 3.438 3.438 3.438 3.937 3.937 3.937 3.719
170 3.040 3.040 3.040 3.040 3.341 3.341 3.341 3.341 3.893 3.893 3.893 3.891
180 2.957 2.957 2.957 2.957 3.250 3.250 3.250 3.250 3.790 3.790 3.790 3.790
190 2.879 2.879 2.879 2.879 3.166 3.166 3.166 3.166 3.695 3.695 3.695 3.695
200 2.806 2.806 2.806 2.806 3.089 3.089 3.089 3.089 3.606 3.606 3.606 3.606
210 2.738 2.738 2.738 2.738 3.015 3.015 3.015 3.015 3.523 3.523 3.523 3.523
220 2.676 2.676 2.676 2.676 2.947 2.947 2.947 2.947 3.445 3.445 3.445 3.445
230 2.616 2.616 2.616 2.616 2.883 2.883 2.883 2.883 3.370 3.370 3.370 3.370
240 2.560 2.560 2.560 2.560 2.821 2.821 2.821 2.821 3.302 3.302 3.302 3.302
250 2.507 2.507 2.507 2.507 2.763 2.763 2.763 2.763 3.236 3.236 3.236 3.236
HE+
+ 30
kg
1.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk82 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.569 2.319 3.376 3.376 2.625 2.366 3.746 3.746 2.726 2.461
140 3.038 3.038 2.765 2.496 3.288 3.288 2.815 2.546 3.649 3.649 2.922 2.637
150 3.006 3.006 2.953 2.672 3.203 3.203 3.203 2.726 3.562 3.562 3.312 2.819
160 2.961 2.961 2.961 2.850 3.126 3.126 3.126 2.899 3.484 3.484 3.484 2.992
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.410 3.410 3.410 3.410
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.453 3.453 2.569 2.319 3.788 3.531 2.625 2.366 4.238 3.664 2.726 2.461
140 3.337 3.337 2.765 2.496 3.662 3.662 2.815 2.546 4.112 4.085 2.922 2.637
150 3.230 3.230 2.953 2.672 3.546 3.546 3.007 2.726 3.996 3.996 3.108 2.819
160 3.133 3.133 3.133 2.850 3.441 3.441 3.203 2.899 3.938 3.938 3.304 2.992
170 3.042 3.042 3.042 3.038 3.343 3.343 3.343 3.085 3.895 3.895 3.492 3.172
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
1
.5 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 83 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.620 2.362 3.375 3.375 2.672 2.410 3.742 3.742 2.773 2.500
140 3.038 3.038 2.819 2.546 3.288 3.288 2.875 2.593 3.649 3.649 2.976 2.688
150 3.005 3.005 3.005 2.734 3.203 3.203 3.203 2.781 3.558 3.558 3.407 2.874
160 2.961 2.961 2.961 2.922 3.125 3.125 3.125 2.969 3.480 3.480 3.480 3.250
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.750 2.750 2.750 2.750 2.926 2.926 2.926 2.926 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.866 2.866 2.866 2.866 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.761 2.761 2.761 2.761 3.116 3.116 3.116 3.116
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.453 3.453 2.620 2.362 3.786 3.593 2.672 2.410 4.234 3.726 2.773 2.500
140 3.335 3.335 2.819 2.546 3.660 3.660 2.875 2.593 4.108 4.108 2.976 2.688
150 3.228 3.228 3.023 2.734 3.544 3.544 3.073 2.781 3.994 3.994 3.172 2.874
160 3.129 3.129 3.129 2.922 3.438 3.438 3.273 2.969 3.937 3.937 3.375 3.054
170 3.040 3.040 3.040 3.040 3.341 3.341 3.341 3.157 3.893 3.893 3.569 3.242
180 2.957 2.957 2.957 2.957 3.250 3.250 3.250 3.250 3.790 3.790 3.765 3.422
190 2.879 2.879 2.879 2.879 3.166 3.166 3.166 3.166 3.695 3.695 3.695 3.600
200 2.806 2.806 2.806 2.806 3.089 3.089 3.089 3.089 3.606 3.606 3.606 3.606
210 2.738 2.738 2.738 2.738 3.015 3.015 3.015 3.015 3.523 3.523 3.523 3.523
220 2.676 2.676 2.676 2.676 2.947 2.947 2.947 2.947 3.445 3.445 3.445 3.445
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
30kg
1
.5 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk84 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.664 2.403 3.375 3.375 2.719 2.449 3.742 3.742 2.812 2.538
140 3.038 3.038 2.875 2.596 3.288 3.288 2.922 2.641 3.645 3.645 3.023 2.734
150 3.003 3.003 3.003 2.788 3.203 3.203 3.203 2.835 3.558 3.558 3.500 2.922
160 2.953 2.953 2.953 2.953 3.125 3.125 3.125 3.125 3.476 3.476 3.476 3.343
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.812 2.812 2.812 2.812 2.984 2.984 2.984 2.984 3.339 3.339 3.339 3.339
190 2.750 2.750 2.750 2.750 2.922 2.922 2.922 2.922 3.277 3.277 3.277 3.277
200 2.691 2.691 2.691 2.691 2.866 2.866 2.866 2.866 3.219 3.219 3.219 3.219
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.500 2.500 2.500 2.500 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.407 2.407 2.407 2.407 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.023 3.023 3.023 3.023
250 2.242 2.242 2.242 2.242 2.616 2.616 2.616 2.616 2.984 2.984 2.984 2.984
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.449 3.449 2.664 2.403 3.784 3.649 2.719 2.449 4.232 3.781 2.812 2.538
140 3.333 3.333 2.875 2.596 3.657 3.657 2.922 2.641 4.108 4.108 3.023 2.734
150 3.226 3.226 3.077 2.788 3.542 3.542 3.133 2.835 3.992 3.992 3.226 2.922
160 3.129 3.129 3.129 2.984 3.436 3.436 3.335 3.023 3.935 3.935 3.430 3.116
170 3.038 3.038 3.038 3.038 3.339 3.339 3.339 3.219 3.891 3.891 3.641 3.304
180 2.955 2.955 2.955 2.955 3.248 3.248 3.248 3.248 3.788 3.788 3.788 3.492
190 2.876 2.876 2.876 2.876 3.164 3.164 3.164 3.164 3.693 3.693 3.693 3.672
200 2.804 2.804 2.804 2.804 3.085 3.085 3.085 3.085 3.604 3.604 3.604 3.604
210 2.738 2.738 2.738 2.738 3.013 3.013 3.013 3.013 3.519 3.519 3.519 3.519
220 2.674 2.674 2.674 2.674 2.945 2.945 2.945 2.945 3.441 3.441 3.441 3.441
230 2.614 2.614 2.614 2.614 2.879 2.879 2.879 2.879 3.368 3.368 3.368 3.368
240 2.558 2.558 2.558 2.558 2.819 2.819 2.819 2.819 3.300 3.300 3.300 3.300
250 2.505 2.505 2.505 2.505 2.761 2.761 2.761 2.761 3.234 3.234 3.234 3.234
HE
35kg
1
.5 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 85 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.616 2.362 3.383 3.383 2.672 2.407 3.746 3.746 2.773 2.500
140 3.038 3.038 2.819 2.546 3.288 3.288 2.870 2.593 3.649 3.649 2.969 2.684
150 3.007 3.007 3.007 2.734 3.207 3.207 3.207 2.781 3.562 3.562 3.407 2.870
160 2.961 2.961 2.961 2.914 3.133 3.133 3.133 2.961 3.484 3.484 3.484 3.250
170 2.891 2.891 2.891 2.891 3.062 3.062 3.062 3.062 3.410 3.410 3.410 3.410
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.757 2.757 2.757 2.757 2.930 2.930 2.930 2.930 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.874 2.874 2.874 2.874 3.226 3.226 3.226 3.226
210 2.616 2.616 2.616 2.616 2.819 2.819 2.819 2.819 3.172 3.172 3.172 3.172
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.457 3.457 2.616 2.362 3.790 3.593 2.672 2.407 4.238 3.726 2.773 2.500
140 3.339 3.339 2.819 2.546 3.664 3.664 2.870 2.593 4.114 4.114 2.969 2.684
150 3.232 3.232 3.019 2.734 3.550 3.550 3.069 2.781 3.998 3.998 3.172 2.870
160 3.135 3.135 3.135 2.914 3.443 3.443 3.269 2.961 3.940 3.940 3.366 3.054
170 3.044 3.044 3.044 3.044 3.346 3.346 3.346 3.153 3.899 3.899 3.569 3.242
180 2.961 2.961 2.961 2.961 3.255 3.255 3.255 3.255 3.796 3.796 3.757 3.422
190 2.883 2.883 2.883 2.883 3.172 3.172 3.172 3.172 3.699 3.699 3.699 3.593
200 2.810 2.810 2.810 2.810 3.093 3.093 3.093 3.093 3.612 3.612 3.612 3.612
210 2.742 2.742 2.742 2.742 3.019 3.019 3.019 3.019 3.527 3.527 3.527 3.527
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE+
+ 20
kg
1.5
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk86 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.684 2.422 3.376 3.376 2.734 2.465 3.746 3.746 2.835 2.554
140 3.038 3.038 2.891 2.616 3.288 3.288 2.945 2.657 3.649 3.649 3.038 2.750
150 3.006 3.006 3.006 2.804 3.203 3.203 3.203 2.850 3.562 3.562 3.546 2.938
160 2.961 2.961 2.961 2.961 3.126 3.126 3.126 3.126 3.484 3.484 3.484 3.375
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.410 3.410 3.410 3.410
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.757 2.757 2.757 2.757 2.930 2.930 2.930 2.930 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.870 2.870 2.870 2.870 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.172 3.172 3.172 3.172
220 2.515 2.515 2.515 2.515 2.765 2.765 2.765 2.765 3.120 3.120 3.120 3.120
230 2.422 2.422 2.422 2.422 2.688 2.688 2.688 2.688 3.073 3.073 3.073 3.073
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.625 2.625 2.625 2.625 2.988 2.988 2.988 2.988
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.453 3.453 2.684 2.422 3.788 3.680 2.734 2.465 4.238 3.804 2.835 2.554
140 3.337 3.337 2.891 2.616 3.662 3.662 2.945 2.657 4.112 4.112 3.038 2.750
150 3.230 3.230 3.100 2.804 3.546 3.546 3.149 2.850 3.996 3.996 3.250 2.938
160 3.133 3.133 3.133 3.000 3.441 3.441 3.358 3.046 3.938 3.938 3.453 3.133
170 3.042 3.042 3.042 3.042 3.343 3.343 3.343 3.242 3.895 3.895 3.664 3.327
180 2.959 2.959 2.959 2.959 3.253 3.253 3.253 3.253 3.792 3.792 3.792 3.515
190 2.881 2.881 2.881 2.881 3.168 3.168 3.168 3.168 3.697 3.697 3.697 3.697
200 2.808 2.808 2.808 2.808 3.091 3.091 3.091 3.091 3.608 3.608 3.608 3.608
210 2.742 2.742 2.742 2.742 3.017 3.017 3.017 3.017 3.525 3.525 3.525 3.525
220 2.678 2.678 2.678 2.678 2.949 2.949 2.949 2.949 3.447 3.447 3.447 3.447
230 2.618 2.618 2.618 2.618 2.883 2.883 2.883 2.883 3.374 3.374 3.374 3.374
240 2.562 2.562 2.562 2.562 2.823 2.823 2.823 2.823 3.304 3.304 3.304 3.304
250 2.509 2.509 2.509 2.509 2.765 2.765 2.765 2.765 3.238 3.238 3.238 3.238
HE+
+ 25
kg
1.5
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 87 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.125 3.125 2.726 2.453 3.375 3.375 2.773 2.500 3.742 3.742 2.866 2.585
140 3.038 3.038 2.938 2.657 3.288 3.288 2.992 2.703 3.649 3.649 3.288 2.788
150 3.005 3.005 3.005 2.858 3.203 3.203 3.203 2.899 3.558 3.558 3.558 2.984
160 2.961 2.961 2.961 2.961 3.125 3.125 3.125 3.125 3.480 3.480 3.480 3.461
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 3.054 3.407 3.407 3.407 3.407
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.750 2.750 2.750 2.750 2.926 2.926 2.926 2.926 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.866 2.866 2.866 2.866 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.761 2.761 2.761 2.761 3.116 3.116 3.116 3.116
230 2.414 2.414 2.414 2.414 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.608 2.608 2.608 2.608 2.984 2.984 2.984 2.984
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 3.453 3.453 2.726 2.453 3.786 3.734 2.773 2.500 4.234 4.062 2.866 2.585
140 3.335 3.335 2.938 2.657 3.660 3.660 2.992 2.703 4.108 4.108 3.085 2.788
150 3.228 3.228 3.157 2.858 3.544 3.544 3.203 2.899 3.994 3.994 3.296 2.984
160 3.129 3.129 3.129 3.054 3.438 3.438 3.422 3.100 3.937 3.937 3.515 3.180
170 3.040 3.040 3.040 3.040 3.341 3.341 3.341 3.304 3.893 3.893 3.726 3.383
180 2.957 2.957 2.957 2.957 3.250 3.250 3.250 3.250 3.790 3.790 3.790 3.577
190 2.879 2.879 2.879 2.879 3.166 3.166 3.166 3.166 3.695 3.695 3.695 3.695
200 2.806 2.806 2.806 2.806 3.089 3.089 3.089 3.089 3.606 3.606 3.606 3.606
210 2.738 2.738 2.738 2.738 3.015 3.015 3.015 3.015 3.523 3.523 3.523 3.523
220 2.676 2.676 2.676 2.676 2.947 2.947 2.947 2.947 3.445 3.445 3.445 3.445
230 2.616 2.616 2.616 2.616 2.883 2.883 2.883 2.883 3.370 3.370 3.370 3.370
240 2.560 2.560 2.560 2.560 2.821 2.821 2.821 2.821 3.302 3.302 3.302 3.302
250 2.507 2.507 2.507 2.507 2.763 2.763 2.763 2.763 3.236 3.236 3.236 3.236
HE+
+ 30
kg
1.5
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk88 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.457 2.222 3.288 3.288 2.500 2.257 3.649 3.649 2.577 2.331
150 3.006 3.006 2.641 2.391 3.203 3.203 2.680 2.430 3.562 3.562 2.765 2.500
160 2.961 2.961 2.827 2.562 3.126 3.126 2.866 2.600 3.484 3.484 2.945 2.672
170 2.883 2.883 2.883 2.742 3.054 3.054 3.054 2.777 3.410 3.410 3.374 2.850
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.337 3.273 2.457 2.222 3.662 3.327 2.500 2.257 4.112 3.430 2.577 2.331
150 3.230 3.230 2.641 2.391 3.546 3.538 2.680 2.430 3.996 3.641 2.765 2.500
160 3.133 3.133 2.827 2.562 3.441 3.441 2.866 2.600 3.938 3.850 2.945 2.672
170 3.042 3.042 3.015 2.742 3.343 3.343 3.054 2.777 3.895 3.895 3.133 2.850
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
2
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 89 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.515 2.273 3.288 3.288 2.554 2.312 3.649 3.649 2.633 2.379
150 3.005 3.005 2.707 2.453 3.203 3.203 2.746 2.484 3.558 3.558 2.823 2.554
160 2.961 2.961 2.899 2.633 3.125 3.125 2.938 2.664 3.480 3.480 3.015 2.734
170 2.883 2.883 2.883 2.812 3.054 3.054 3.054 2.850 3.407 3.407 3.407 2.914
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.750 2.750 2.750 2.750 2.926 2.926 2.926 2.926 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.866 2.866 2.866 2.866 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.761 2.761 2.761 2.761 3.116 3.116 3.116 3.116
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.335 3.335 2.515 2.273 3.660 3.399 2.554 2.312 4.108 3.500 2.633 2.379
150 3.228 3.228 2.707 2.453 3.544 3.544 2.746 2.484 3.994 3.719 2.823 2.554
160 3.129 3.129 2.899 2.633 3.438 3.438 2.938 2.664 3.937 3.937 3.015 2.734
170 3.040 3.040 3.040 2.812 3.341 3.341 3.133 2.850 3.893 3.893 3.211 2.914
180 2.957 2.957 2.957 2.957 3.250 3.250 3.250 3.031 3.790 3.790 3.407 3.100
190 2.879 2.879 2.879 2.879 3.166 3.166 3.166 3.166 3.695 3.695 3.585 3.273
200 2.806 2.806 2.806 2.806 3.089 3.089 3.089 3.089 3.606 3.606 3.606 3.438
210 2.738 2.738 2.738 2.738 3.015 3.015 3.015 3.015 3.523 3.523 3.523 3.523
220 2.676 2.676 2.676 2.676 2.947 2.947 2.947 2.947 3.445 3.445 3.445 3.445
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
30kg
2
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk90 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.562 2.319 3.288 3.288 2.604 2.354 3.645 3.645 2.680 2.422
150 3.003 3.003 2.765 2.500 3.203 3.203 2.804 2.538 3.558 3.558 2.875 2.608
160 2.953 2.953 2.953 2.688 3.125 3.125 3.000 2.722 3.476 3.476 3.296 2.788
170 2.883 2.883 2.883 2.875 3.054 3.054 3.054 2.914 3.407 3.407 3.407 2.976
180 2.812 2.812 2.812 2.812 2.984 2.984 2.984 2.984 3.339 3.339 3.339 3.339
190 2.750 2.750 2.750 2.750 2.922 2.922 2.922 2.922 3.277 3.277 3.277 3.277
200 2.691 2.691 2.691 2.691 2.866 2.866 2.866 2.866 3.219 3.219 3.219 3.219
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.500 2.500 2.500 2.500 2.757 2.757 2.757 2.757 3.116 3.116 3.116 3.116
230 2.407 2.407 2.407 2.407 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.023 3.023 3.023 3.023
250 2.242 2.242 2.242 2.242 2.616 2.616 2.616 2.616 2.984 2.984 2.984 2.984
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.333 3.333 2.562 2.319 3.657 3.461 2.604 2.354 4.108 3.562 2.680 2.422
150 3.226 3.226 2.765 2.500 3.542 3.542 2.804 2.538 3.992 3.796 2.875 2.608
160 3.129 3.129 2.961 2.688 3.436 3.436 3.000 2.722 3.935 3.935 3.077 2.788
170 3.038 3.038 3.038 2.875 3.339 3.339 3.203 2.914 3.891 3.891 3.273 2.976
180 2.955 2.955 2.955 2.955 3.248 3.248 3.248 3.100 3.788 3.788 3.476 3.164
190 2.876 2.876 2.876 2.876 3.164 3.164 3.164 3.164 3.693 3.693 3.664 3.343
200 2.804 2.804 2.804 2.804 3.085 3.085 3.085 3.085 3.604 3.604 3.604 3.515
210 2.738 2.738 2.738 2.738 3.013 3.013 3.013 3.013 3.519 3.519 3.519 3.519
220 2.674 2.674 2.674 2.674 2.945 2.945 2.945 2.945 3.441 3.441 3.441 3.441
230 2.614 2.614 2.614 2.614 2.879 2.879 2.879 2.879 3.368 3.368 3.368 3.368
240 2.558 2.558 2.558 2.558 2.819 2.819 2.819 2.819 3.300 3.300 3.300 3.300
250 2.505 2.505 2.505 2.505 2.761 2.761 2.761 2.761 3.234 3.234 3.234 3.234
HE
35kg
2
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 91 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.511 2.269 3.288 3.288 2.554 2.308 3.649 3.649 2.633 2.375
150 3.007 3.007 2.703 2.445 3.207 3.207 2.742 2.484 3.562 3.562 2.819 2.554
160 2.961 2.961 2.899 2.625 3.133 3.133 2.938 2.664 3.484 3.484 3.011 2.734
170 2.891 2.891 2.891 2.812 3.062 3.062 3.062 2.843 3.410 3.410 3.410 2.914
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.327
190 2.757 2.757 2.757 2.757 2.930 2.930 2.930 2.930 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.874 2.874 2.874 2.874 3.226 3.226 3.226 3.226
210 2.616 2.616 2.616 2.616 2.819 2.819 2.819 2.819 3.172 3.172 3.172 3.172
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.339 3.339 2.511 2.269 3.664 3.399 2.554 2.308 4.114 3.500 2.633 2.375
150 3.232 3.232 2.703 2.445 3.550 3.550 2.742 2.484 3.998 3.719 2.819 2.554
160 3.135 3.135 2.899 2.625 3.443 3.443 2.938 2.664 3.940 3.938 3.011 2.734
170 3.044 3.044 3.044 2.812 3.346 3.346 3.133 2.843 3.899 3.899 3.203 2.914
180 2.961 2.961 2.961 2.961 3.255 3.255 3.255 3.031 3.796 3.796 3.399 3.093
190 2.883 2.883 2.883 2.883 3.172 3.172 3.172 3.172 3.699 3.699 3.577 3.265
200 2.810 2.810 2.810 2.810 3.093 3.093 3.093 3.093 3.612 3.612 3.612 3.438
210 2.742 2.742 2.742 2.742 3.019 3.019 3.019 3.019 3.527 3.527 3.527 3.527
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE+
+ 20
kg
2.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk92 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.585 2.335 3.288 3.288 2.625 2.374 3.649 3.649 2.699 2.438
150 3.006 3.006 2.788 2.523 3.203 3.203 2.827 2.558 3.562 3.562 2.899 2.625
160 2.961 2.961 2.961 2.711 3.126 3.126 3.126 2.742 3.484 3.484 3.335 2.812
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 2.938 3.410 3.410 3.410 3.000
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.757 2.757 2.757 2.757 2.930 2.930 2.930 2.930 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.870 2.870 2.870 2.870 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.172 3.172 3.172 3.172
220 2.515 2.515 2.515 2.515 2.765 2.765 2.765 2.765 3.120 3.120 3.120 3.120
230 2.422 2.422 2.422 2.422 2.688 2.688 2.688 2.688 3.073 3.073 3.073 3.073
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.625 2.625 2.625 2.625 2.988 2.988 2.988 2.988
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.337 3.337 2.585 2.335 3.662 3.492 2.625 2.374 4.112 3.593 2.699 2.438
150 3.230 3.230 2.788 2.523 3.546 3.546 2.827 2.558 3.996 3.827 2.899 2.625
160 3.133 3.133 2.984 2.711 3.441 3.441 3.023 2.742 3.938 3.938 3.100 2.812
170 3.042 3.042 3.042 2.899 3.343 3.343 3.234 2.938 3.895 3.895 3.304 3.000
180 2.959 2.959 2.959 2.959 3.253 3.253 3.253 3.125 3.792 3.792 3.507 3.188
190 2.881 2.881 2.881 2.881 3.168 3.168 3.168 3.168 3.697 3.697 3.695 3.374
200 2.808 2.808 2.808 2.808 3.091 3.091 3.091 3.091 3.608 3.608 3.608 3.546
210 2.742 2.742 2.742 2.742 3.017 3.017 3.017 3.017 3.525 3.525 3.525 3.525
220 2.678 2.678 2.678 2.678 2.949 2.949 2.949 2.949 3.447 3.447 3.447 3.447
230 2.618 2.618 2.618 2.618 2.883 2.883 2.883 2.883 3.374 3.374 3.374 3.374
240 2.562 2.562 2.562 2.562 2.823 2.823 2.823 2.823 3.304 3.304 3.304 3.304
250 2.509 2.509 2.509 2.509 2.765 2.765 2.765 2.765 3.238 3.238 3.238 3.238
HE+
+ 25
kg
2.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 93 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.038 3.038 2.629 2.375 3.288 3.288 2.668 2.410 3.649 3.649 2.742 2.476
150 3.005 3.005 2.835 2.569 3.203 3.203 2.875 2.600 3.558 3.558 2.945 2.668
160 2.961 2.961 2.961 2.761 3.125 3.125 3.125 2.796 3.480 3.480 3.422 2.858
170 2.883 2.883 2.883 2.883 3.054 3.054 3.054 2.992 3.407 3.407 3.407 3.288
180 2.819 2.819 2.819 2.819 2.992 2.992 2.992 2.992 3.343 3.343 3.343 3.343
190 2.750 2.750 2.750 2.750 2.926 2.926 2.926 2.926 3.281 3.281 3.281 3.281
200 2.695 2.695 2.695 2.695 2.866 2.866 2.866 2.866 3.222 3.222 3.222 3.222
210 2.608 2.608 2.608 2.608 2.812 2.812 2.812 2.812 3.168 3.168 3.168 3.168
220 2.507 2.507 2.507 2.507 2.761 2.761 2.761 2.761 3.116 3.116 3.116 3.116
230 2.414 2.414 2.414 2.414 2.688 2.688 2.688 2.688 3.069 3.069 3.069 3.069
240 2.327 2.327 2.327 2.327 2.664 2.664 2.664 2.664 3.027 3.027 3.027 3.027
250 2.250 2.250 2.250 2.250 2.608 2.608 2.608 2.608 2.984 2.984 2.984 2.984
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.335 3.335 2.629 2.375 3.660 3.554 2.668 2.410 4.108 3.649 2.742 2.476
150 3.228 3.228 2.835 2.569 3.544 3.544 2.875 2.600 3.994 3.891 2.945 2.668
160 3.129 3.129 3.046 2.761 3.438 3.438 3.085 2.796 3.937 3.937 3.149 2.858
170 3.040 3.040 3.040 2.961 3.341 3.341 3.296 2.992 3.893 3.893 3.366 3.054
180 2.957 2.957 2.957 2.957 3.250 3.250 3.250 3.188 3.790 3.790 3.569 3.250
190 2.879 2.879 2.879 2.879 3.166 3.166 3.166 3.166 3.695 3.695 3.695 3.438
200 2.806 2.806 2.806 2.806 3.089 3.089 3.089 3.089 3.606 3.606 3.606 3.606
210 2.738 2.738 2.738 2.738 3.015 3.015 3.015 3.015 3.523 3.523 3.523 3.523
220 2.676 2.676 2.676 2.676 2.947 2.947 2.947 2.947 3.445 3.445 3.445 3.445
230 2.616 2.616 2.616 2.616 2.883 2.883 2.883 2.883 3.370 3.370 3.370 3.370
240 2.560 2.560 2.560 2.560 2.821 2.821 2.821 2.821 3.302 3.302 3.302 3.302
250 2.507 2.507 2.507 2.507 2.763 2.763 2.763 2.763 3.236 3.236 3.236 3.236
HE+
+ 30
kg
2.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
FLOOR DECK PROFILE
95 TR80+ Product Information and Properties96 Step 2 TR80+ Composite Slab Graph (Mesh)97 Step 2 TR80+ Composite Slab Graph (Steel Fibres)98 Step 3 TR80+ 1.0 Hour fire rating (Mesh)104 Step 3 TR80+ 1.5 Hour fire rating (Mesh)110 Step 3 TR80+ 2.0 Hour fire rating (Mesh)116 Step 3 TR80+ 1.0 Hour fire rating (Steel Fibres)122 Step 3 TR80+ 1.5 Hour fire rating (Steel Fibres)128 Step 3 TR80+ 2.0 Hour fire rating (Steel Fibres)
Page Title
94 The White Book V4smdltd.co.uk
smdltd.co.uk 95 The White Book V4
PRO
DU
CT
DAT
A
Profile Properties
Section properties are calculated assisted by testing in accordance with Eurocode 3.
Thickness mm Steel Grade N/mm2 Coatings and Options Weight Moment of Inertia cm4/m
Height of Neutral
Axis mm
Area of Steel
mm2/mNominalDesign Thickness
(bare steel) S250 S350 S450Galv
(Z275)HD
(ZM310)Plastisol
(PF)InteriorLiner
Perfo-rated
Crushed Ends kg/m2 kN/m2
0.90 0.86 - - - 11.33 0.111 172.90 42.30 1385
1.00 0.96 - - - - 12.54 0.123 192.30 42.40 1539
1.20 1.16 - - - 15.06 0.148 231.10 42.50 1860
DescriptionInitially added to our product range in 2002, the original TR80 has undergone further research and development, evolving to the popular TR80+ profile in use today. This 80mm deep trapezoidal profile offers long un-propped spans reducing the number of structural support members required, making it a popular choice for low to medium storey buildings.
Benefits • Reduced concrete volume compared to other deck
available
• 140mm slab depth required to achieve a typical one hour fire rating
• TAB-Deck™ fibre concrete option
122
600 Cover Width
300
8012
Concrete Volume and Weight
Fire Insulation ThicknessMinimum Insulation Thickness (x) of Concrete (mm)
The image and table above details the minimum insulation thickness required to suit fire design criteria in accordance with SCI PN005c-GB or BS5950 Part 8.
Fire Rating NWC LWC
1.0 Hour 60 60
1.5 Hour 70 70
2.0 Hour 80 80
3.0 Hour 115 100
4.0 Hour 130 115
Slab Depth Volume of Concrete Weight of Concrete (Normal Weight) Weight of Concrete (Lightweight)mm m³/m² Wet (kN/m²) Dry (kN/m²) Wet (kN/m²) Dry (kN/m²)
140 0.096 2.26 2.21 1.79 1.70
150 0.106 2.50 2.44 1.98 1.87
200 0.156 3.67 3.60 2.91 2.75Deflection – This table is based on concrete poured to a constant thickness and does not take account for deflection of the decking or supporting beams (as a guide, to account for the deflection of the decking, a concrete volume of span/250 should be added to the figures indicated). Concrete Weight – These tables indicate concrete weight only and do not include the weight of decking or re-inforcement. Concrete weights are based on the concrete densities specified in BS EN 1991-1-1 as follows: Normal Weight Concrete – 2550kg/m³ (wet) and 2450 kg/m³ (dry). Lightweight Concrete – 2050kg/m³ (wet) and 1950 kg/m³ (dry).
smdltd.co.uk96 The White Book V4
Slab Depth (mm)
Span
Len
gth
(m)
150140 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on A393 mesh. It may be possible to reduce mesh size by referencing load/span tables during Step 3.
TR80+ 0.9mm
TR80+ 1.0mm
TR80+ 1.2mm
Construction Stage
10kN
7.5kN
5kN
5kN
7.5kN
7.5kN
Min
for
1.5h
r Fi
re
Min
for
2hr
Fire
10kN
10kN
1hr Fire 1.5hr Fire 2hr Fire
1hr
1hr
Step 2, Composite slab graph
Step 3, Refer to the pages below for spans
Span and slab depth guidance graphWith proposed profile and gauge determined at step 1 on page 5, review the graph below to consider whether Load and Fire rating govern the design. Construction stage governs (shown dashed) except where solid lines representing the different Load/Fire limits are shown.
MES
H R
EIN
FOR
CEM
ENT
1.0 Hr Fire RatingA142Pg.98
A142Pg.104
A142Pg.110
A193Pg.99
A193Pg.105
A193Pg.111
2xA252Pg.102
2xA252Pg.108
2xA252Pg.114
A252Pg.100
A252Pg.106
A252Pg.112
2xA393Pg.103
2xA393Pg.109
2xA393Pg.115
A393Pg.101
A393Pg.107
A393Pg.113
1.5 Hr Fire Rating 2.0 Hr Fire Rating
* Refer to Note 13 on Page 7
MESH REINFORCEMENT
SLAB
GR
APH
smdltd.co.uk 97 The White Book V4
Slab Depth (mm)
Span
Len
gth
(m)
150140 160 170 180 190 200 210 220 230 240 2502.0
3.0
4.0
3.8
3.6
3.4
3.2
2.8
2.6
2.4
2.2
4.8
4.6
4.4
4.2
5.2
5.0
Note: This graph is based on 30kg/m3≥ HE++ 1/50 Fibres. It may be possible to change fibre type and/or reduce the dosage by referencing load/span tables during Step 3.
TR80+ 0.9mm
TR80+ 1.0mm
TR80+ 1.2mm
Construction Stage
Min
for
1.5h
r Fi
re
Min
for
1.0h
r Fi
re
Min
for
2hr
Fire
10kN
10kN10kN
7.5kN
7.5kN
7.5kN
5kN
5kN
5kN
1hr Fire 1.5hr Fire 2hr Fire
Step 2, Composite slab graph
Step 3, Refer to the pages below for spans
Span and slab depth guidance graphWith proposed profile and gauge determined at step 1 on page 5, review the graph below to consider whether Load and Fire rating govern the design. Construction stage governs (shown dashed) except where solid lines representing the different Load/Fire limits are shown.
FIB
RE
CO
NC
RET
E
1.0 Hr Fire Rating
HE++ 20kgPg.119
HE++ 20kgPg.125
HE++ 20kgPg.131
HE 25kgPg.116
HE 25kgPg.122
HE 25kgPg.128
HE++ 25kgPg.120
HE++ 25kgPg.126
HE++ 25kgPg.132
HE 30kgPg.117
HE 30kgPg.123
HE 30kgPg.129
HE++ 30kgPg.121
HE++ 30kgPg.127
HE++ 30kgPg.133
HE 35kgPg.118
HE 35kgPg.124
HE 35kgPg.130
1.5 Hr Fire Rating 2.0 Hr Fire Rating
STEEL FIBRE CONCRETE
SLAB
GR
APH
smdltd.co.uk98 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.883 3.883 2.922 2.633 4.180 4.180 3.000 2.703 4.430 4.430 3.149 2.839
150 3.781 3.781 3.054 2.757 4.069 4.069 3.133 2.835 4.343 4.343 3.296 2.976
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.284 3.930 2.922 2.633 4.549 4.031 3.000 2.703 5.170 4.234 3.149 2.839
150 4.137 4.077 3.054 2.757 4.521 4.180 3.133 2.835 5.019 4.391 3.296 2.976
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 99 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.875 3.875 2.992 2.695 4.172 4.172 3.062 2.757 4.430 4.430 3.211 2.891
150 3.773 3.773 3.125 2.819 4.062 4.062 3.203 2.891 4.343 4.343 3.358 3.031
160 3.657 3.657 3.257 2.945 3.969 3.969 3.335 3.023 4.261 4.261 3.500 3.164
170 3.511 3.511 3.391 3.077 3.875 3.875 3.476 3.149 4.188 4.188 3.641 3.296
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.281 4.023 2.992 2.695 4.545 4.125 3.062 2.757 5.164 4.319 3.211 2.891
150 4.133 4.133 3.125 2.819 4.518 4.265 3.203 2.891 5.015 4.469 3.358 3.031
160 4.000 4.000 3.257 2.945 4.383 4.383 3.335 3.023 4.875 4.858 3.500 3.164
170 3.879 3.879 3.391 3.077 4.250 4.250 3.476 3.149 4.748 4.748 3.641 3.296
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk100 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 3.773 3.773 3.195 2.883 4.062 4.062 3.265 2.953 4.339 4.339 3.414 3.085
160 3.657 3.657 3.319 3.007 3.961 3.961 3.399 3.077 4.257 4.257 3.554 3.211
170 3.508 3.508 3.453 3.126 3.866 3.866 3.827 3.203 4.188 4.188 3.688 3.343
180 3.494 3.494 3.494 3.257 3.781 3.781 3.781 3.335 4.120 4.120 4.120 3.484
190 3.374 3.374 3.374 3.374 3.703 3.703 3.703 3.453 4.058 4.058 4.058 3.843
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.000 4.000 4.000 3.969
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 4.129 4.129 3.195 2.883 4.514 4.358 3.265 2.953 5.011 4.843 3.414 3.085
160 3.996 3.996 3.319 3.007 4.376 4.376 3.399 3.077 4.872 4.872 3.554 3.211
170 3.875 3.875 3.453 3.126 4.246 4.246 3.531 3.203 4.744 4.744 3.688 3.343
180 3.761 3.761 3.585 3.257 4.125 4.125 3.672 3.335 4.653 4.653 3.835 3.484
190 3.657 3.657 3.657 3.383 4.013 4.013 3.796 3.453 4.638 4.638 3.969 3.608
200 3.562 3.562 3.562 3.461 3.907 3.907 3.883 3.538 4.534 4.534 4.054 3.695
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 101 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 3.765 3.765 3.335 3.011 4.054 4.054 3.399 3.069 4.331 4.331 3.531 3.195
160 3.641 3.641 3.461 3.125 3.953 3.953 3.953 3.195 4.250 4.250 4.108 3.319
170 3.502 3.502 3.502 3.250 3.858 3.858 3.858 3.312 4.180 4.180 4.180 3.445
180 3.489 3.489 3.489 3.366 3.773 3.773 3.773 3.438 4.116 4.116 4.116 3.922
190 3.358 3.358 3.358 3.358 3.695 3.695 3.695 3.695 4.054 4.054 4.054 4.054
200 3.203 3.203 3.203 3.203 3.624 3.624 3.624 3.624 3.996 3.996 3.996 3.996
210 3.062 3.062 3.062 3.062 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.391 3.879 3.879 3.879 3.879
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
A393
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 4.120 4.120 3.335 3.011 4.506 4.506 3.399 3.069 5.000 5.000 3.531 3.195
160 3.988 3.988 3.461 3.125 4.366 4.366 3.531 3.195 4.862 4.862 3.672 3.319
170 3.866 3.866 3.585 3.250 4.238 4.238 3.657 3.312 4.734 4.734 3.804 3.445
180 3.753 3.753 3.711 3.366 4.116 4.116 3.781 3.438 4.646 4.646 3.938 3.577
190 3.649 3.649 3.649 3.484 4.003 4.003 3.907 3.554 4.631 4.631 4.062 3.695
200 3.554 3.554 3.554 3.554 3.901 3.901 3.901 3.664 4.527 4.527 4.172 3.804
210 3.465 3.465 3.465 3.465 3.804 3.804 3.804 3.773 4.418 4.418 4.296 3.922
220 3.379 3.379 3.379 3.379 3.713 3.713 3.713 3.713 4.315 4.315 4.315 4.038
230 3.300 3.300 3.300 3.300 3.629 3.629 3.629 3.629 4.219 4.219 4.219 4.157
240 3.172 3.172 3.172 3.172 3.548 3.548 3.548 3.548 4.129 4.129 4.129 4.129
250 3.046 3.046 3.046 3.046 3.472 3.472 3.472 3.472 4.042 4.042 4.042 4.042
A393
1.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk102 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 ** ** ** ** ** ** ** ** ** ** ** **
160 3.641 3.641 3.641 3.327 3.945 3.945 3.945 3.383 4.246 4.246 4.246 3.500
170 3.498 3.498 3.498 3.430 3.858 3.858 3.858 3.492 4.176 4.176 4.176 4.077
180 3.485 3.485 3.485 3.485 3.773 3.773 3.773 3.773 4.108 4.108 4.108 4.108
190 3.343 3.343 3.343 3.343 3.688 3.688 3.688 3.688 4.050 4.050 4.050 4.050
200 3.203 3.203 3.203 3.203 3.616 3.616 3.616 3.616 3.992 3.992 3.992 3.992
210 3.062 3.062 3.062 3.062 3.500 3.500 3.500 3.500 3.938 3.938 3.938 3.938
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.391 3.875 3.875 3.875 3.875
230 2.827 2.827 2.827 2.827 3.331 3.331 3.331 3.331 3.815 3.815 3.815 3.815
240 2.719 2.719 2.719 2.719 3.277 3.277 3.277 3.277 3.761 3.761 3.761 3.761
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.707 3.707 3.707 3.707
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 ** ** ** ** ** ** ** ** ** ** ** **
160 3.980 3.980 3.680 3.327 4.358 4.358 3.742 3.383 4.854 4.854 3.866 3.500
170 3.858 3.858 3.781 3.430 4.230 4.230 3.850 3.492 4.726 4.726 3.984 3.608
180 3.746 3.746 3.746 3.538 4.108 4.108 3.961 3.600 4.641 4.641 4.100 3.726
190 3.645 3.645 3.645 3.633 3.998 3.998 3.998 3.695 4.626 4.626 4.203 3.827
200 3.548 3.548 3.548 3.548 3.895 3.895 3.895 3.788 4.519 4.519 4.304 3.922
210 3.459 3.459 3.459 3.459 3.798 3.798 3.798 3.798 4.410 4.410 4.399 4.015
220 3.375 3.375 3.375 3.375 3.707 3.707 3.707 3.707 4.308 4.308 4.308 4.124
230 3.296 3.296 3.296 3.296 3.624 3.624 3.624 3.624 4.213 4.213 4.213 4.213
240 3.172 3.172 3.172 3.172 3.542 3.542 3.542 3.542 4.124 4.124 4.124 4.124
250 3.031 3.031 3.031 3.031 3.469 3.469 3.469 3.469 4.038 4.038 4.038 4.038
2xA2
52
1.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 103 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 ** ** ** ** ** ** ** ** ** ** ** **
160 ** ** ** ** ** ** ** ** ** ** ** **
170 3.487 3.487 3.487 3.487 3.843 3.843 3.843 3.843 4.164 4.164 4.164 4.164
180 3.474 3.474 3.474 3.474 3.757 3.757 3.757 3.757 4.100 4.100 4.100 4.100
190 3.327 3.327 3.327 3.327 3.680 3.680 3.680 3.680 4.038 4.038 4.038 4.038
200 3.172 3.172 3.172 3.172 3.608 3.608 3.608 3.608 3.984 3.984 3.984 3.984
210 3.046 3.046 3.046 3.046 3.484 3.484 3.484 3.484 3.930 3.930 3.930 3.930
220 2.922 2.922 2.922 2.922 3.379 3.379 3.379 3.379 3.866 3.866 3.866 3.866
230 2.812 2.812 2.812 2.812 3.319 3.319 3.319 3.319 3.804 3.804 3.804 3.804
240 2.703 2.703 2.703 2.703 3.265 3.265 3.265 3.265 3.750 3.750 3.750 3.750
250 2.608 2.608 2.608 2.608 3.157 3.157 3.157 3.157 3.699 3.699 3.699 3.699
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 ** ** ** ** ** ** ** ** ** ** ** **
150 ** ** ** ** ** ** ** ** ** ** ** **
160 ** ** ** ** ** ** ** ** ** ** ** **
170 3.841 3.841 3.841 3.680 4.211 4.211 4.108 3.726 4.707 4.707 4.226 3.827
180 3.730 3.730 3.730 3.730 4.091 4.091 4.091 3.827 4.627 4.627 4.335 3.938
190 3.629 3.629 3.629 3.629 3.980 3.980 3.980 3.907 4.613 4.613 4.422 4.023
200 3.534 3.534 3.534 3.534 3.879 3.879 3.879 3.879 4.500 4.500 4.492 4.093
210 3.445 3.445 3.445 3.445 3.784 3.784 3.784 3.784 4.395 4.395 4.395 4.188
220 3.362 3.362 3.362 3.362 3.695 3.695 3.695 3.695 4.292 4.292 4.292 4.292
230 3.281 3.281 3.281 3.281 3.610 3.610 3.610 3.610 4.199 4.199 4.199 4.199
240 3.141 3.141 3.141 3.141 3.531 3.531 3.531 3.531 4.108 4.108 4.108 4.108
250 3.015 3.015 3.015 3.015 3.457 3.457 3.457 3.457 4.025 4.025 4.025 4.025
2xA3
93
1.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk104 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.781 3.350 2.519 2.277 4.069 3.438 2.585 2.335 4.343 3.608 2.719 2.453
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.137 3.350 2.519 2.277 4.521 3.438 2.585 2.335 5.019 3.608 2.719 2.453
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 105 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.773 3.461 2.600 2.350 4.062 3.858 2.664 2.407 4.343 4.015 2.788 2.523
160 3.657 3.657 2.703 2.445 3.969 3.969 2.765 2.503 4.261 4.172 2.891 2.620
170 3.511 3.511 2.800 2.538 3.875 3.875 2.866 2.600 4.188 4.188 3.000 2.719
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.133 3.461 2.600 2.350 4.518 3.546 2.664 2.407 5.015 3.711 2.788 2.523
160 4.000 3.562 2.703 2.445 4.383 3.649 2.765 2.503 4.875 3.812 2.891 2.620
170 3.879 3.664 2.800 2.538 4.250 3.750 2.866 2.600 4.748 3.922 3.000 2.719
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk106 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.773 3.773 2.688 2.430 4.062 4.062 2.750 2.484 4.339 4.312 2.866 2.593
160 3.657 3.657 2.781 2.519 3.961 3.961 2.843 2.577 4.257 4.257 2.969 2.688
170 3.508 3.508 2.876 2.612 3.866 3.866 2.945 2.672 4.188 4.188 3.069 2.788
180 3.494 3.494 2.980 2.711 3.781 3.781 3.046 2.769 4.120 4.120 3.180 2.891
190 3.374 3.374 3.085 2.812 3.703 3.703 3.149 2.874 4.058 4.058 3.288 2.992
200 3.219 3.219 3.195 2.914 3.625 3.625 3.265 2.976 4.000 4.000 3.399 3.100
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.129 3.577 2.688 2.430 4.514 3.657 2.750 2.484 5.011 3.812 2.866 2.593
160 3.996 3.672 2.781 2.519 4.376 3.750 2.843 2.577 4.872 3.914 2.969 2.688
170 3.875 3.765 2.876 2.612 4.246 3.850 2.945 2.672 4.744 4.015 3.069 2.788
180 3.761 3.761 2.980 2.711 4.125 3.953 3.046 2.769 4.653 4.124 3.180 2.891
190 3.657 3.657 3.085 2.812 4.013 4.013 3.149 2.874 4.638 4.234 3.288 2.992
200 3.562 3.562 3.195 2.914 3.907 3.907 3.265 2.976 4.534 4.343 3.399 3.100
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 107 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.765 3.765 2.862 2.585 4.054 4.054 2.914 2.633 4.331 4.331 3.015 2.726
160 3.641 3.641 2.953 2.672 3.953 3.953 3.007 2.722 4.250 4.250 3.116 2.823
170 3.502 3.502 3.042 2.757 3.858 3.858 3.100 2.812 4.180 4.180 3.219 2.914
180 3.489 3.489 3.133 2.850 3.773 3.773 3.195 2.907 4.116 4.116 3.312 3.015
190 3.358 3.358 3.250 2.961 3.695 3.695 3.296 3.000 4.054 4.054 3.422 3.116
200 3.203 3.203 3.203 3.093 3.624 3.624 3.407 3.108 3.996 3.996 3.953 3.219
210 3.062 3.062 3.062 3.062 3.515 3.515 3.515 3.500 3.945 3.945 3.945 3.319
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.383 3.879 3.879 3.879 3.422
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
A393
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.120 3.804 2.862 2.585 4.506 3.875 2.914 2.633 5.000 4.015 3.015 2.726
160 3.988 3.891 2.953 2.672 4.366 3.961 3.007 2.722 4.862 4.108 3.116 2.823
170 3.866 3.866 3.042 2.757 4.238 4.054 3.100 2.812 4.734 4.203 3.219 2.914
180 3.753 3.753 3.133 2.850 4.116 4.116 3.195 2.907 4.646 4.296 3.312 3.015
190 3.649 3.649 3.250 2.961 4.003 4.003 3.296 3.000 4.631 4.399 3.422 3.116
200 3.554 3.554 3.391 3.093 3.901 3.901 3.407 3.108 4.527 4.500 3.523 3.219
210 3.465 3.465 3.465 3.226 3.804 3.804 3.554 3.242 4.418 4.418 3.626 3.319
220 3.379 3.379 3.379 3.366 3.713 3.713 3.695 3.383 4.315 4.315 3.734 3.422
230 3.300 3.300 3.300 3.300 3.629 3.629 3.629 3.523 4.219 4.219 3.866 3.546
240 3.172 3.172 3.172 3.172 3.548 3.548 3.548 3.548 4.129 4.129 4.015 3.680
250 3.046 3.046 3.046 3.046 3.472 3.472 3.472 3.472 4.042 4.042 4.042 3.827
A393
1.5
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk108 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 ** ** ** ** ** ** ** ** ** ** ** **
160 3.641 3.641 3.234 2.930 3.945 3.945 3.281 2.969 4.246 4.246 3.376 3.062
170 3.498 3.498 3.312 3.000 3.858 3.858 3.358 3.046 4.176 4.176 3.461 3.141
180 3.485 3.485 3.391 3.077 3.773 3.773 3.438 3.125 4.108 4.108 4.108 3.219
190 3.343 3.343 3.343 3.157 3.688 3.688 3.688 3.203 4.050 4.050 4.050 3.304
200 3.203 3.203 3.203 3.203 3.616 3.616 3.616 3.288 3.992 3.992 3.992 3.399
210 3.062 3.062 3.062 3.062 3.500 3.500 3.500 3.500 3.938 3.938 3.938 3.484
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.391 3.875 3.875 3.875 3.875
230 2.827 2.827 2.827 2.827 3.331 3.331 3.331 3.331 3.815 3.815 3.815 3.815
240 2.719 2.719 2.719 2.719 3.277 3.277 3.277 3.277 3.761 3.761 3.761 3.761
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.707 3.707 3.707 3.707
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 ** ** ** ** ** ** ** ** ** ** ** **
160 3.980 3.980 3.234 2.930 4.358 4.327 3.281 2.969 4.854 4.453 3.376 3.062
170 3.858 3.858 3.312 3.000 4.230 4.230 3.358 3.046 4.726 4.523 3.461 3.141
180 3.746 3.746 3.391 3.077 4.108 4.108 3.438 3.125 4.641 4.593 3.546 3.219
190 3.645 3.645 3.469 3.157 3.998 3.998 3.523 3.203 4.626 4.626 3.633 3.304
200 3.548 3.548 3.548 3.242 3.895 3.895 3.608 3.288 4.519 4.519 3.719 3.399
210 3.459 3.459 3.459 3.343 3.798 3.798 3.695 3.375 4.410 4.410 3.812 3.484
220 3.375 3.375 3.375 3.375 3.707 3.707 3.707 3.492 4.308 4.308 3.899 3.569
230 3.296 3.296 3.296 3.296 3.624 3.624 3.624 3.624 4.213 4.213 4.000 3.664
240 3.172 3.172 3.172 3.172 3.542 3.542 3.542 3.542 4.124 4.124 4.124 3.796
250 3.031 3.031 3.031 3.031 3.469 3.469 3.469 3.469 4.038 4.038 4.038 3.930
2xA2
52
1.
5 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 109 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 ** ** ** ** ** ** ** ** ** ** ** **
160 ** ** ** ** ** ** ** ** ** ** ** **
170 3.487 3.487 3.487 3.288 3.843 3.843 3.843 3.327 4.164 4.164 4.164 3.407
180 3.474 3.474 3.474 3.366 3.757 3.757 3.757 3.407 4.100 4.100 4.100 3.484
190 3.327 3.327 3.327 3.327 3.680 3.680 3.680 3.476 4.038 4.038 4.038 4.038
200 3.172 3.172 3.172 3.172 3.608 3.608 3.608 3.608 3.984 3.984 3.984 3.984
210 3.046 3.046 3.046 3.046 3.484 3.484 3.484 3.484 3.930 3.930 3.930 3.930
220 2.922 2.922 2.922 2.922 3.379 3.379 3.379 3.379 3.866 3.866 3.866 3.866
230 2.812 2.812 2.812 2.812 3.319 3.319 3.319 3.319 3.804 3.804 3.804 3.804
240 2.703 2.703 2.703 2.703 3.265 3.265 3.265 3.265 3.750 3.750 3.750 3.750
250 2.608 2.608 2.608 2.608 3.157 3.157 3.157 3.157 3.699 3.699 3.699 3.699
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 ** ** ** ** ** ** ** ** ** ** ** **
160 ** ** ** ** ** ** ** ** ** ** ** **
170 3.841 3.841 3.625 3.288 4.211 4.211 3.672 3.327 4.707 4.707 3.757 3.407
180 3.730 3.730 3.703 3.366 4.091 4.091 3.750 3.407 4.627 4.627 3.835 3.484
190 3.629 3.629 3.629 3.438 3.980 3.980 3.819 3.476 4.613 4.613 3.914 3.562
200 3.534 3.534 3.534 3.515 3.879 3.879 3.879 3.554 4.500 4.500 3.992 3.641
210 3.445 3.445 3.445 3.445 3.784 3.784 3.784 3.664 4.395 4.395 4.069 3.719
220 3.362 3.362 3.362 3.362 3.695 3.695 3.695 3.695 4.292 4.292 4.188 3.835
230 3.281 3.281 3.281 3.281 3.610 3.610 3.610 3.610 4.199 4.199 4.199 3.961
240 3.141 3.141 3.141 3.141 3.531 3.531 3.531 3.531 4.108 4.108 4.108 4.100
250 3.015 3.015 3.015 3.015 3.457 3.457 3.457 3.457 4.025 4.025 4.025 4.025
2xA3
93
1.
5 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk110 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A142
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 - - - - - - - - - - - -
170 - - - - - - - - - - - -
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A142
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 111 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A193
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.172 2.407 2.180 3.969 3.234 2.457 2.226 4.261 3.366 2.562 2.319
170 3.511 3.250 2.492 2.261 3.875 3.319 2.542 2.308 4.188 3.453 2.645 2.399
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 4.000 3.172 2.407 2.180 4.358 3.234 2.457 2.226 4.804 3.366 2.562 2.319
170 3.879 3.250 2.492 2.261 4.250 3.319 2.542 2.308 4.562 3.453 2.645 2.399
180 - - - - - - - - - - - -
190 - - - - - - - - - - - -
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A193
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk112 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A252
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.296 2.503 2.269 3.961 3.358 2.554 2.312 4.257 3.484 2.645 2.399
170 3.508 3.375 2.585 2.343 3.866 3.438 2.633 2.387 4.188 3.562 2.726 2.476
180 3.494 3.453 2.668 2.426 3.781 3.781 2.719 2.469 4.120 4.077 2.819 2.562
190 3.374 3.374 2.757 2.515 3.703 3.703 2.808 2.558 4.058 4.058 2.914 2.653
200 3.219 3.219 2.883 2.633 3.625 3.625 2.899 2.649 4.000 4.000 3.007 2.746
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.996 3.296 2.503 2.269 4.376 3.358 2.554 2.312 4.872 3.484 2.645 2.399
170 3.875 3.375 2.585 2.343 4.246 3.438 2.633 2.387 4.744 3.562 2.726 2.476
180 3.761 3.453 2.668 2.426 4.125 3.523 2.719 2.469 4.653 3.649 2.819 2.562
190 3.657 3.546 2.757 2.515 4.013 3.608 2.808 2.558 4.638 3.742 2.914 2.653
200 3.562 3.562 2.883 2.633 3.907 3.703 2.899 2.649 4.534 3.843 3.007 2.746
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
A252
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 113 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
A393
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.641 3.641 2.688 2.438 3.953 3.953 2.734 2.476 4.250 4.250 2.819 2.554
170 3.502 3.502 2.773 2.515 3.858 3.858 2.812 2.550 4.180 4.180 2.899 2.633
180 3.489 3.489 2.891 2.626 3.773 3.773 2.914 2.649 4.116 4.116 2.984 2.711
190 3.358 3.358 3.015 2.750 3.695 3.695 3.038 2.765 4.054 4.054 3.085 2.804
200 3.203 3.203 3.157 2.875 3.624 3.624 3.172 2.891 3.996 3.996 3.203 2.926
210 3.062 3.062 3.062 3.015 3.515 3.515 3.312 3.027 3.945 3.945 3.335 3.054
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.164 3.879 3.879 3.476 3.188
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.304 3.819 3.819 3.819 3.319
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.515
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.672
A393
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.988 3.546 2.688 2.438 4.366 3.593 2.734 2.476 4.862 3.703 2.819 2.554
170 3.866 3.625 2.773 2.515 4.238 3.672 2.812 2.550 4.734 3.781 2.899 2.633
180 3.753 3.750 2.891 2.626 4.116 3.781 2.914 2.649 4.646 3.866 2.984 2.711
190 3.649 3.649 3.015 2.750 4.003 3.907 3.038 2.765 4.631 3.961 3.085 2.804
200 3.554 3.554 3.157 2.875 3.901 3.901 3.172 2.891 4.527 4.093 3.203 2.926
210 3.465 3.465 3.296 3.015 3.804 3.804 3.312 3.027 4.418 4.234 3.335 3.054
220 3.379 3.379 3.379 3.157 3.713 3.713 3.453 3.164 4.315 4.315 3.476 3.188
230 3.300 3.300 3.300 3.300 3.629 3.629 3.608 3.304 4.219 4.219 3.625 3.319
240 3.172 3.172 3.172 3.172 3.548 3.548 3.548 3.453 4.129 4.129 3.773 3.461
250 3.046 3.046 3.046 3.046 3.472 3.472 3.472 3.472 4.042 4.042 3.922 3.608
A393
2.0
Hr
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk114 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA2
52
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.641 3.641 2.953 2.672 3.945 3.945 2.988 2.703 4.246 4.246 3.062 2.773
170 3.498 3.498 3.069 2.788 3.858 3.858 3.108 2.819 4.176 4.176 3.180 2.891
180 3.485 3.485 3.133 2.850 3.773 3.773 3.172 2.883 4.108 4.108 3.250 2.957
190 3.343 3.343 3.203 2.914 3.688 3.688 3.242 2.953 4.050 4.050 3.327 3.027
200 3.203 3.203 3.203 3.007 3.616 3.616 3.319 3.031 3.992 3.992 3.399 3.100
210 3.062 3.062 3.062 3.062 3.500 3.500 3.500 3.141 3.938 3.938 3.484 3.180
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.265 3.875 3.875 3.875 3.296
230 2.827 2.827 2.827 2.827 3.331 3.331 3.331 3.331 3.815 3.815 3.815 3.422
240 2.719 2.719 2.719 2.719 3.277 3.277 3.277 3.277 3.761 3.761 3.761 3.761
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.707 3.707 3.707 3.707
2xA2
52
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.980 3.891 2.953 2.672 4.358 3.938 2.988 2.703 4.854 4.031 3.062 2.773
170 3.858 3.858 3.069 2.788 4.230 4.062 3.108 2.819 4.726 4.157 3.180 2.891
180 3.746 3.746 3.133 2.850 4.108 4.108 3.172 2.883 4.641 4.211 3.250 2.957
190 3.645 3.645 3.203 2.914 3.998 3.998 3.242 2.953 4.626 4.273 3.327 3.027
200 3.548 3.548 3.296 3.007 3.895 3.895 3.319 3.031 4.519 4.335 3.399 3.100
210 3.459 3.459 3.422 3.125 3.798 3.798 3.438 3.141 4.410 4.410 3.484 3.180
220 3.375 3.375 3.375 3.250 3.707 3.707 3.569 3.265 4.308 4.308 3.608 3.296
230 3.296 3.296 3.296 3.296 3.624 3.624 3.624 3.391 4.213 4.213 3.734 3.422
240 3.172 3.172 3.172 3.172 3.542 3.542 3.542 3.531 4.124 4.124 3.875 3.554
250 3.031 3.031 3.031 3.031 3.469 3.469 3.469 3.469 4.038 4.038 4.015 3.688
2xA2
52
2.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 115 The White Book V4
For design notes relating to these tables, refer page 7. Where "-" is shown, mesh size or fire insulation thickness is insufficient.
MES
H R
EIN
FOR
CEM
ENT
2xA3
93
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 ** ** ** ** ** ** ** ** ** ** ** **
170 3.487 3.487 3.399 3.085 3.843 3.843 3.430 3.108 4.164 4.164 3.492 3.164
180 3.474 3.474 3.472 3.157 3.757 3.757 3.757 3.188 4.100 4.100 4.100 3.250
190 3.327 3.327 3.327 3.219 3.680 3.680 3.680 3.250 4.038 4.038 4.038 3.312
200 3.172 3.172 3.172 3.172 3.608 3.608 3.608 3.319 3.984 3.984 3.984 3.375
210 3.046 3.046 3.046 3.046 3.484 3.484 3.484 3.430 3.930 3.930 3.930 3.476
220 2.922 2.922 2.922 2.922 3.379 3.379 3.379 3.379 3.866 3.866 3.866 3.866
230 2.812 2.812 2.812 2.812 3.319 3.319 3.319 3.319 3.804 3.804 3.804 3.804
240 2.703 2.703 2.703 2.703 3.265 3.265 3.265 3.265 3.750 3.750 3.750 3.750
250 2.608 2.608 2.608 2.608 3.157 3.157 3.157 3.157 3.699 3.699 3.699 3.699
2xA3
93
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 ** ** ** ** ** ** ** ** ** ** ** **
170 3.841 3.841 3.399 3.085 4.211 4.211 3.430 3.108 4.707 4.554 3.492 3.164
180 3.730 3.730 3.476 3.157 4.091 4.091 3.507 3.188 4.627 4.625 3.569 3.250
190 3.629 3.629 3.538 3.219 3.980 3.980 3.569 3.250 4.613 4.613 3.641 3.312
200 3.534 3.534 3.534 3.304 3.879 3.879 3.641 3.319 4.500 4.500 3.703 3.375
210 3.445 3.445 3.445 3.414 3.784 3.784 3.757 3.430 4.395 4.395 3.796 3.476
220 3.362 3.362 3.362 3.362 3.695 3.695 3.695 3.554 4.292 4.292 3.922 3.593
230 3.281 3.281 3.281 3.281 3.610 3.610 3.610 3.610 4.199 4.199 4.046 3.711
240 3.141 3.141 3.141 3.141 3.531 3.531 3.531 3.531 4.108 4.108 4.108 3.843
250 3.015 3.015 3.015 3.015 3.457 3.457 3.457 3.457 4.025 4.025 4.025 3.984
2xA3
93
2.
0 H
r
0.9mm 1.0mm 1.2mm
Mesh DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk116 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.883 3.883 3.149 2.839 4.180 4.180 3.219 2.899 4.430 4.430 3.358 3.031
150 3.781 3.781 3.350 3.023 4.069 4.069 3.422 3.093 4.343 4.343 3.562 3.219
160 3.657 3.657 3.657 3.211 3.969 3.969 3.858 3.281 4.261 4.261 3.992 3.407
170 3.511 3.511 3.511 3.399 3.875 3.875 3.875 3.461 4.188 4.188 4.188 3.593
180 3.496 3.496 3.496 3.496 3.781 3.781 3.781 3.781 4.120 4.120 4.120 4.031
190 3.375 3.375 3.375 3.375 3.703 3.703 3.703 3.703 4.058 4.058 4.058 4.058
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.284 4.250 3.149 2.839 4.548 4.343 3.219 2.899 5.168 4.523 3.358 3.031
150 4.137 4.137 3.350 3.023 4.519 4.519 3.422 3.093 5.017 4.984 3.562 3.219
160 4.003 4.003 3.554 3.211 4.383 4.383 3.625 3.281 4.876 4.876 3.765 3.407
170 3.879 3.879 3.750 3.399 4.250 4.250 3.819 3.461 4.746 4.746 3.961 3.593
180 3.765 3.765 3.765 3.585 4.126 4.126 4.015 3.649 4.655 4.655 4.157 3.781
190 3.660 3.660 3.660 3.660 4.015 4.015 4.015 3.819 4.639 4.639 4.343 3.953
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
1
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 117 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.876 3.876 3.203 2.891 4.172 4.172 3.273 2.953 4.430 4.430 3.407 3.073
150 3.773 3.773 3.414 3.085 4.062 4.062 3.484 3.149 4.339 4.339 3.625 3.273
160 3.657 3.657 3.657 3.273 3.961 3.961 3.961 3.343 4.261 4.261 4.093 3.469
170 3.508 3.508 3.508 3.469 3.866 3.866 3.866 3.750 4.188 4.188 4.188 3.657
180 3.494 3.494 3.494 3.494 3.781 3.781 3.781 3.781 4.120 4.120 4.120 4.120
190 3.358 3.358 3.358 3.358 3.703 3.703 3.703 3.703 4.058 4.058 4.058 4.058
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.000 4.000 4.000 4.000
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.281 4.281 3.203 2.891 4.546 4.407 3.273 2.953 5.166 4.781 3.407 3.073
150 4.133 4.133 3.414 3.085 4.517 4.517 3.484 3.149 5.015 5.015 3.625 3.273
160 4.000 4.000 3.625 3.273 4.379 4.379 3.695 3.343 4.875 4.875 3.827 3.469
170 3.875 3.875 3.827 3.469 4.246 4.246 3.899 3.531 4.746 4.746 4.038 3.657
180 3.761 3.761 3.761 3.657 4.125 4.125 4.100 3.726 4.653 4.653 4.242 3.850
190 3.657 3.657 3.657 3.657 4.011 4.011 4.011 3.907 4.636 4.636 4.430 4.031
200 3.558 3.558 3.558 3.558 3.907 3.907 3.907 3.907 4.531 4.531 4.531 4.203
210 3.469 3.469 3.469 3.469 3.808 3.808 3.808 3.808 4.422 4.422 4.422 4.366
220 3.383 3.383 3.383 3.383 3.715 3.715 3.715 3.715 4.319 4.319 4.319 4.319
230 3.302 3.302 3.302 3.302 3.629 3.629 3.629 3.629 4.219 4.219 4.219 4.219
240 3.172 3.172 3.172 3.172 3.550 3.550 3.550 3.550 4.129 4.129 4.129 4.129
250 - - - - - - - - - - - -
HE
30kg
1
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk118 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.875 3.875 3.257 2.930 4.172 4.172 3.319 2.992 4.426 4.426 3.453 3.116
150 3.773 3.773 3.469 3.133 4.062 4.062 3.750 3.195 4.339 4.339 3.672 3.319
160 3.657 3.657 3.657 3.335 3.961 3.961 3.961 3.391 4.257 4.257 4.188 3.515
170 3.507 3.507 3.507 3.507 3.866 3.866 3.866 3.843 4.184 4.184 4.184 3.719
180 3.492 3.492 3.492 3.492 3.781 3.781 3.781 3.781 4.116 4.116 4.116 4.116
190 3.358 3.358 3.358 3.358 3.703 3.703 3.703 3.703 4.054 4.054 4.054 4.054
200 3.203 3.203 3.203 3.203 3.625 3.625 3.625 3.625 4.000 4.000 4.000 4.000
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.391 3.879 3.879 3.879 3.879
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.277 4.277 3.257 2.930 4.544 4.476 3.319 2.992 5.164 4.858 3.453 3.116
150 4.131 4.131 3.469 3.133 4.515 4.515 3.538 3.195 5.011 5.011 3.672 3.319
160 3.996 3.996 3.688 3.335 4.376 4.376 3.750 3.391 4.870 4.870 3.891 3.515
170 3.874 3.874 3.874 3.531 4.246 4.246 3.961 3.593 4.742 4.742 4.100 3.719
180 3.759 3.759 3.759 3.726 4.122 4.122 4.122 3.788 4.650 4.650 4.312 3.914
190 3.653 3.653 3.653 3.653 4.007 4.007 4.007 3.976 4.634 4.634 4.507 4.100
200 3.556 3.556 3.556 3.556 3.903 3.903 3.903 3.903 4.529 4.529 4.529 4.273
210 3.465 3.465 3.465 3.465 3.804 3.804 3.804 3.804 4.418 4.418 4.418 4.418
220 3.379 3.379 3.379 3.379 3.713 3.713 3.713 3.713 4.315 4.315 4.315 4.315
230 3.300 3.300 3.300 3.300 3.626 3.626 3.626 3.626 4.219 4.219 4.219 4.219
240 3.172 3.172 3.172 3.172 3.546 3.546 3.546 3.546 4.125 4.125 4.125 4.125
250 3.046 3.046 3.046 3.046 3.469 3.469 3.469 3.469 4.040 4.040 4.040 4.040
HE
35kg
1
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 119 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.883 3.883 3.203 2.883 4.180 4.180 3.273 2.945 4.434 4.434 3.407 3.069
150 3.781 3.781 3.414 3.081 4.069 4.069 3.484 3.141 4.343 4.343 3.625 3.265
160 3.672 3.672 3.672 3.273 3.969 3.969 3.953 3.335 4.265 4.265 4.093 3.461
170 3.515 3.515 3.515 3.469 3.875 3.875 3.875 3.742 4.188 4.188 4.188 3.657
180 3.497 3.497 3.497 3.497 3.788 3.788 3.788 3.788 4.125 4.125 4.125 4.125
190 3.375 3.375 3.375 3.375 3.703 3.703 3.703 3.703 4.062 4.062 4.062 4.062
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.003 4.003 4.003 4.003
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.949 3.949 3.949 3.949
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.887 3.887 3.887 3.887
230 2.843 2.843 2.843 2.843 3.343 3.343 3.343 3.343 3.827 3.827 3.827 3.827
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.288 4.288 3.203 2.883 4.550 4.407 3.273 2.945 5.172 4.593 3.407 3.069
150 4.139 4.139 3.414 3.081 4.521 4.521 3.484 3.141 5.019 5.019 3.625 3.265
160 4.003 4.003 3.616 3.273 4.387 4.387 3.688 3.335 4.879 4.879 3.827 3.461
170 3.881 3.881 3.827 3.469 4.253 4.253 3.891 3.531 4.750 4.750 4.031 3.657
180 3.767 3.767 3.767 3.657 4.129 4.129 4.100 3.719 4.657 4.657 4.234 3.850
190 3.662 3.662 3.662 3.662 4.017 4.017 4.017 3.899 4.641 4.641 4.422 4.031
200 3.565 3.565 3.565 3.565 3.910 3.910 3.910 3.910 4.538 4.538 4.538 4.195
210 3.472 3.472 3.472 3.472 3.812 3.812 3.812 3.812 4.426 4.426 4.426 4.358
220 3.387 3.387 3.387 3.387 3.722 3.722 3.722 3.722 4.323 4.323 4.323 4.323
230 3.308 3.308 3.308 3.308 3.635 3.635 3.635 3.635 4.226 4.226 4.226 4.226
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE+
+ 20
kg
1.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk120 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.883 3.883 3.273 2.953 4.180 4.180 3.343 3.007 4.430 4.430 3.476 3.126
150 3.781 3.781 3.492 3.149 4.069 4.069 3.781 3.211 4.343 4.343 3.695 3.335
160 3.657 3.657 3.657 3.350 3.969 3.969 3.969 3.414 4.261 4.261 4.219 3.538
170 3.511 3.511 3.511 3.511 3.875 3.875 3.875 3.875 4.188 4.188 4.188 3.734
180 3.496 3.496 3.496 3.496 3.781 3.781 3.781 3.781 4.120 4.120 4.120 4.120
190 3.375 3.375 3.375 3.375 3.703 3.703 3.703 3.703 4.058 4.058 4.058 4.058
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.000 4.000 4.000 4.000
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.949 3.949 3.949 3.949
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.835 2.835 2.835 2.835 3.339 3.339 3.339 3.339 3.823 3.823 3.823 3.823
240 2.734 2.734 2.734 2.734 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.188 3.188 3.188 3.188 3.711 3.711 3.711 3.711
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.284 4.284 3.273 2.953 4.548 4.500 3.343 3.007 5.168 4.891 3.476 3.126
150 4.137 4.137 3.492 3.149 4.519 4.519 3.562 3.211 5.017 5.017 3.695 3.335
160 4.003 4.003 3.711 3.350 4.383 4.383 3.773 3.414 4.876 4.876 3.907 3.538
170 3.879 3.879 3.879 3.554 4.250 4.250 3.992 3.616 4.746 4.746 4.125 3.734
180 3.765 3.765 3.765 3.757 4.126 4.126 4.126 3.812 4.655 4.655 4.343 3.938
190 3.660 3.660 3.660 3.660 4.015 4.015 4.015 4.000 4.639 4.639 4.531 4.125
200 3.562 3.562 3.562 3.562 3.910 3.910 3.910 3.910 4.534 4.534 4.534 4.304
210 3.469 3.469 3.469 3.469 3.812 3.812 3.812 3.812 4.426 4.426 4.426 4.426
220 3.385 3.385 3.385 3.385 3.719 3.719 3.719 3.719 4.321 4.321 4.321 4.321
230 3.304 3.304 3.304 3.304 3.633 3.633 3.633 3.633 4.224 4.224 4.224 4.224
240 3.188 3.188 3.188 3.188 3.550 3.550 3.550 3.550 4.133 4.133 4.133 4.133
250 3.046 3.046 3.046 3.046 3.476 3.476 3.476 3.476 4.046 4.046 4.046 4.046
HE+
+ 25
kg
1.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 121 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 3.876 3.876 3.319 2.988 4.172 4.172 3.383 3.046 4.430 4.430 3.515 3.164
150 3.773 3.773 3.773 3.195 4.062 4.062 3.850 3.257 4.339 4.339 3.742 3.375
160 3.657 3.657 3.657 3.407 3.961 3.961 3.961 3.461 4.261 4.261 4.261 3.585
170 3.508 3.508 3.508 3.508 3.866 3.866 3.866 3.866 4.188 4.188 4.188 4.069
180 3.494 3.494 3.494 3.494 3.781 3.781 3.781 3.781 4.120 4.120 4.120 4.120
190 3.358 3.358 3.358 3.358 3.703 3.703 3.703 3.703 4.058 4.058 4.058 4.058
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.000 4.000 4.000 4.000
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 4.281 4.281 3.319 2.988 4.546 4.546 3.383 3.046 5.166 4.969 3.515 3.164
150 4.133 4.133 3.546 3.195 4.517 4.517 3.608 3.257 5.015 5.015 3.742 3.375
160 4.000 4.000 3.765 3.407 4.379 4.379 3.827 3.461 4.875 4.875 3.961 3.585
170 3.875 3.875 3.875 3.608 4.246 4.246 4.046 3.672 4.746 4.746 4.180 3.788
180 3.761 3.761 3.761 3.761 4.125 4.125 4.125 3.875 4.653 4.653 4.399 3.992
190 3.657 3.657 3.657 3.657 4.011 4.011 4.011 4.011 4.636 4.636 4.600 4.188
200 3.558 3.558 3.558 3.558 3.907 3.907 3.907 3.907 4.531 4.531 4.531 4.366
210 3.469 3.469 3.469 3.469 3.808 3.808 3.808 3.808 4.422 4.422 4.422 4.422
220 3.383 3.383 3.383 3.383 3.715 3.715 3.715 3.715 4.319 4.319 4.319 4.319
230 3.302 3.302 3.302 3.302 3.629 3.629 3.629 3.629 4.219 4.219 4.219 4.219
240 3.172 3.172 3.172 3.172 3.550 3.550 3.550 3.550 4.129 4.129 4.129 4.129
250 3.046 3.046 3.046 3.046 3.472 3.472 3.472 3.472 4.042 4.042 4.042 4.042
HE+
+ 30
kg
1.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk122 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.781 3.781 2.765 2.500 4.069 4.031 2.827 2.554 4.343 4.188 2.945 2.660
160 3.657 3.657 2.945 2.668 3.969 3.969 3.007 2.719 4.261 4.261 3.125 2.827
170 3.511 3.511 3.125 2.835 3.875 3.875 3.188 2.891 4.188 4.188 3.304 2.996
180 3.496 3.496 3.312 3.007 3.781 3.781 3.375 3.062 4.120 4.120 3.492 3.172
190 3.375 3.375 3.375 3.180 3.703 3.703 3.703 3.234 4.058 4.058 3.907 3.343
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.137 3.688 2.765 2.500 4.519 3.765 2.827 2.554 5.017 3.922 2.945 2.660
160 4.003 3.891 2.945 2.668 4.383 3.969 3.007 2.719 4.876 4.125 3.125 2.827
170 3.879 3.879 3.125 2.835 4.250 4.172 3.188 2.891 4.746 4.327 3.304 2.996
180 3.765 3.765 3.312 3.007 4.126 4.126 3.375 3.062 4.655 4.531 3.492 3.172
190 3.660 3.660 3.500 3.180 4.015 4.015 3.554 3.234 4.639 4.639 3.672 3.343
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
1
.5 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 123 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.773 3.773 2.819 2.546 4.062 4.062 2.875 2.600 4.339 4.296 2.992 2.703
160 3.657 3.657 3.007 2.719 3.961 3.961 3.062 2.773 4.261 4.261 3.180 2.875
170 3.508 3.508 3.195 2.899 3.866 3.866 3.250 2.949 4.188 4.188 3.366 3.054
180 3.494 3.494 3.383 3.077 3.781 3.781 3.438 3.125 4.120 4.120 3.750 3.234
190 3.358 3.358 3.358 3.257 3.703 3.703 3.703 3.304 4.058 4.058 4.031 3.407
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.484 4.000 4.000 4.000 3.812
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.133 3.750 2.819 2.546 4.517 3.827 2.875 2.600 5.015 3.984 2.992 2.703
160 4.000 3.969 3.007 2.719 4.379 4.046 3.062 2.773 4.875 4.195 3.180 2.875
170 3.875 3.875 3.195 2.899 4.246 4.246 3.250 2.949 4.746 4.407 3.366 3.054
180 3.761 3.761 3.383 3.077 4.125 4.125 3.438 3.125 4.653 4.616 3.554 3.234
190 3.657 3.657 3.577 3.257 4.011 4.011 3.633 3.304 4.636 4.636 3.750 3.407
200 3.558 3.558 3.558 3.438 3.907 3.907 3.827 3.484 4.531 4.531 3.938 3.593
210 3.469 3.469 3.469 3.469 3.808 3.808 3.808 3.664 4.422 4.422 4.124 3.765
220 3.383 3.383 3.383 3.383 3.715 3.715 3.715 3.715 4.319 4.319 4.296 3.938
230 3.302 3.302 3.302 3.302 3.629 3.629 3.629 3.629 4.219 4.219 4.219 4.108
240 3.172 3.172 3.172 3.172 3.550 3.550 3.550 3.550 4.129 4.129 4.129 4.129
250 - - - - - - - - - - - -
HE
30kg
1
.5 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk124 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.773 3.773 2.866 2.589 4.062 4.062 2.922 2.641 4.339 4.339 3.031 2.742
160 3.657 3.657 3.062 2.773 3.961 3.961 3.116 2.819 4.257 4.257 3.226 2.922
170 3.507 3.507 3.257 2.953 3.866 3.866 3.312 3.000 4.184 4.184 3.422 3.100
180 3.492 3.492 3.453 3.137 3.781 3.781 3.757 3.188 4.116 4.116 3.843 3.288
190 3.358 3.358 3.358 3.319 3.703 3.703 3.703 3.374 4.054 4.054 4.054 3.469
200 3.203 3.203 3.203 3.203 3.625 3.625 3.625 3.625 4.000 4.000 4.000 3.922
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.391 3.879 3.879 3.879 3.879
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.131 3.812 2.866 2.589 4.515 3.891 2.922 2.641 5.011 4.038 3.031 2.742
160 3.996 3.996 3.062 2.773 4.376 4.116 3.116 2.819 4.870 4.257 3.226 2.922
170 3.874 3.874 3.257 2.953 4.246 4.246 3.312 3.000 4.742 4.476 3.422 3.100
180 3.759 3.759 3.453 3.137 4.122 4.122 3.507 3.188 4.650 4.650 3.616 3.288
190 3.653 3.653 3.649 3.319 4.007 4.007 3.703 3.374 4.634 4.634 3.812 3.469
200 3.556 3.556 3.556 3.507 3.903 3.903 3.899 3.554 4.529 4.529 4.007 3.657
210 3.465 3.465 3.465 3.465 3.804 3.804 3.804 3.742 4.418 4.418 4.203 3.835
220 3.379 3.379 3.379 3.379 3.713 3.713 3.713 3.713 4.315 4.315 4.315 4.015
230 3.300 3.300 3.300 3.300 3.626 3.626 3.626 3.626 4.219 4.219 4.219 4.188
240 3.172 3.172 3.172 3.172 3.546 3.546 3.546 3.546 4.125 4.125 4.125 4.125
250 3.046 3.046 3.046 3.046 3.469 3.469 3.469 3.469 4.040 4.040 4.040 4.040
HE
35kg
1
.5 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 125 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.781 3.781 2.819 2.546 4.069 4.069 2.875 2.600 4.343 4.281 2.992 2.703
160 3.672 3.672 3.007 2.719 3.969 3.969 3.062 2.773 4.265 4.265 3.180 2.875
170 3.515 3.515 3.195 2.895 3.875 3.875 3.250 2.945 4.188 4.188 3.366 3.054
180 3.497 3.497 3.383 3.077 3.788 3.788 3.438 3.125 4.125 4.125 3.750 3.226
190 3.375 3.375 3.375 3.250 3.703 3.703 3.703 3.304 4.062 4.062 4.031 3.407
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.484 4.003 4.003 4.003 3.812
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.949 3.949 3.949 3.949
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.887 3.887 3.887 3.887
230 2.843 2.843 2.843 2.843 3.343 3.343 3.343 3.343 3.827 3.827 3.827 3.827
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.139 3.757 2.819 2.546 4.521 3.827 2.875 2.600 5.019 3.984 2.992 2.703
160 4.003 3.969 3.007 2.719 4.387 4.046 3.062 2.773 4.879 4.188 3.180 2.875
170 3.881 3.881 3.195 2.895 4.253 4.253 3.250 2.945 4.750 4.407 3.366 3.054
180 3.767 3.767 3.383 3.077 4.129 4.129 3.438 3.125 4.657 4.616 3.554 3.226
190 3.662 3.662 3.577 3.250 4.017 4.017 3.626 3.304 4.641 4.641 3.742 3.407
200 3.565 3.565 3.565 3.430 3.910 3.910 3.819 3.484 4.538 4.538 3.930 3.585
210 3.472 3.472 3.472 3.472 3.812 3.812 3.812 3.657 4.426 4.426 4.116 3.757
220 3.387 3.387 3.387 3.387 3.722 3.722 3.722 3.722 4.323 4.323 4.296 3.930
230 3.308 3.308 3.308 3.308 3.635 3.635 3.635 3.635 4.226 4.226 4.226 4.100
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE+
+ 20
kg
1.5
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk126 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.781 3.781 2.883 2.608 4.069 4.069 2.938 2.657 4.343 4.343 3.054 2.757
160 3.657 3.657 3.077 2.788 3.969 3.969 3.133 2.835 4.261 4.261 3.250 2.938
170 3.511 3.511 3.273 2.969 3.875 3.875 3.335 3.023 4.188 4.188 3.445 3.125
180 3.496 3.496 3.476 3.157 3.781 3.781 3.781 3.211 4.120 4.120 3.883 3.312
190 3.375 3.375 3.375 3.350 3.703 3.703 3.703 3.399 4.058 4.058 4.058 3.500
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.000 4.000 4.000 3.969
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.949 3.949 3.949 3.949
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.835 2.835 2.835 2.835 3.339 3.339 3.339 3.339 3.823 3.823 3.823 3.823
240 2.734 2.734 2.734 2.734 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.188 3.188 3.188 3.188 3.711 3.711 3.711 3.711
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.137 3.843 2.883 2.608 4.519 3.914 2.938 2.657 5.017 4.062 3.054 2.757
160 4.003 4.003 3.077 2.788 4.383 4.141 3.133 2.835 4.876 4.288 3.250 2.938
170 3.879 3.879 3.273 2.969 4.250 4.250 3.335 3.023 4.746 4.507 3.445 3.125
180 3.765 3.765 3.476 3.157 4.126 4.126 3.531 3.211 4.655 4.655 3.641 3.312
190 3.660 3.660 3.660 3.350 4.015 4.015 3.734 3.399 4.639 4.639 3.843 3.500
200 3.562 3.562 3.562 3.531 3.910 3.910 3.910 3.585 4.534 4.534 4.038 3.680
210 3.469 3.469 3.469 3.469 3.812 3.812 3.812 3.765 4.426 4.426 4.234 3.866
220 3.385 3.385 3.385 3.385 3.719 3.719 3.719 3.719 4.321 4.321 4.321 4.046
230 3.304 3.304 3.304 3.304 3.633 3.633 3.633 3.633 4.224 4.224 4.224 4.219
240 3.188 3.188 3.188 3.188 3.550 3.550 3.550 3.550 4.133 4.133 4.133 4.133
250 3.046 3.046 3.046 3.046 3.476 3.476 3.476 3.476 4.046 4.046 4.046 4.046
HE+
+ 25
kg
1.5
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 127 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 3.773 3.773 2.926 2.641 4.062 4.062 2.984 2.695 4.339 4.339 3.093 2.792
160 3.657 3.657 3.125 2.827 3.961 3.961 3.180 2.876 4.261 4.261 3.288 2.976
170 3.508 3.508 3.327 3.019 3.866 3.866 3.383 3.069 4.188 4.188 3.492 3.164
180 3.494 3.494 3.494 3.211 3.781 3.781 3.781 3.257 4.120 4.120 3.969 3.358
190 3.358 3.358 3.358 3.358 3.703 3.703 3.703 3.453 4.058 4.058 4.058 3.773
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.625 4.000 4.000 4.000 4.000
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.945
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 4.133 3.899 2.926 2.641 4.517 3.969 2.984 2.695 5.015 4.116 3.093 2.792
160 4.000 4.000 3.125 2.827 4.379 4.203 3.180 2.876 4.875 4.343 3.288 2.976
170 3.875 3.875 3.327 3.019 4.246 4.246 3.383 3.069 4.746 4.569 3.492 3.164
180 3.761 3.761 3.538 3.211 4.125 4.125 3.593 3.257 4.653 4.653 3.695 3.358
190 3.657 3.657 3.657 3.407 4.011 4.011 3.796 3.453 4.636 4.636 3.899 3.546
200 3.558 3.558 3.558 3.558 3.907 3.907 3.907 3.641 4.531 4.531 4.100 3.742
210 3.469 3.469 3.469 3.469 3.808 3.808 3.808 3.808 4.422 4.422 4.304 3.930
220 3.383 3.383 3.383 3.383 3.715 3.715 3.715 3.715 4.319 4.319 4.319 4.116
230 3.302 3.302 3.302 3.302 3.629 3.629 3.629 3.629 4.219 4.219 4.219 4.219
240 3.172 3.172 3.172 3.172 3.550 3.550 3.550 3.550 4.129 4.129 4.129 4.129
250 3.046 3.046 3.046 3.046 3.472 3.472 3.472 3.472 4.042 4.042 4.042 4.042
HE+
+ 30
kg
1.5
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk128 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
25kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.438 2.608 2.362 3.969 3.500 2.657 2.403 4.261 3.624 2.750 2.488
170 3.511 3.511 2.781 2.523 3.875 3.875 2.827 2.562 4.188 4.077 2.914 2.649
180 3.496 3.496 2.957 2.688 3.781 3.781 3.000 2.726 4.120 4.120 3.093 2.812
190 3.375 3.375 3.133 2.854 3.703 3.703 3.180 2.891 4.058 4.058 3.265 2.976
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 4.003 3.438 2.608 2.362 4.383 3.500 2.657 2.403 4.876 3.624 2.750 2.488
170 3.879 3.633 2.781 2.523 4.250 3.695 2.827 2.562 4.746 3.812 2.914 2.649
180 3.765 3.765 2.957 2.688 4.126 3.891 3.000 2.726 4.655 4.015 3.093 2.812
190 3.660 3.660 3.133 2.854 4.015 4.015 3.180 2.891 4.639 4.203 3.265 2.976
200 - - - - - - - - - - - -
210 - - - - - - - - - - - -
220 - - - - - - - - - - - -
230 - - - - - - - - - - - -
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE
25kg
2
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 129 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
30kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.657 2.664 2.414 3.961 3.796 2.711 2.453 4.261 3.688 2.800 2.538
170 3.508 3.508 2.843 2.577 3.866 3.866 2.887 2.616 4.188 4.188 2.976 2.703
180 3.494 3.494 3.031 2.750 3.781 3.781 3.069 2.792 4.120 4.120 3.157 2.875
190 3.358 3.358 3.211 2.922 3.703 3.703 3.257 2.961 4.058 4.058 3.343 3.046
200 3.219 3.219 3.219 3.100 3.625 3.625 3.438 3.133 4.000 4.000 3.523 3.211
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.391
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.796
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 - - - - - - - - - - - -
HE
30kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 4.000 3.515 2.664 2.414 4.379 3.569 2.711 2.453 4.875 3.688 2.800 2.538
170 3.875 3.719 2.843 2.577 4.246 3.773 2.887 2.616 4.746 3.891 2.976 2.703
180 3.761 3.761 3.031 2.750 4.125 3.984 3.069 2.792 4.653 4.093 3.157 2.875
190 3.657 3.657 3.211 2.922 4.011 4.011 3.257 2.961 4.636 4.304 3.343 3.046
200 3.558 3.558 3.399 3.100 3.907 3.907 3.438 3.133 4.531 4.500 3.523 3.211
210 3.469 3.469 3.469 3.273 3.808 3.808 3.625 3.312 4.422 4.422 3.703 3.391
220 3.383 3.383 3.383 3.383 3.715 3.715 3.715 3.476 4.319 4.319 3.883 3.554
230 3.302 3.302 3.302 3.302 3.629 3.629 3.629 3.629 4.219 4.219 4.062 3.719
240 3.172 3.172 3.172 3.172 3.550 3.550 3.550 3.550 4.129 4.129 4.129 3.891
250 - - - - - - - - - - - -
HE
30kg
2
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk130 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE
35kg
/m³ 1
/50
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.657 2.719 2.461 3.961 3.907 2.757 2.500 4.257 4.000 2.850 2.581
170 3.507 3.507 2.899 2.633 3.866 3.866 2.945 2.672 4.184 4.184 3.031 2.750
180 3.492 3.492 3.093 2.812 3.781 3.781 3.133 2.850 4.116 4.116 3.219 2.926
190 3.358 3.358 3.281 2.988 3.703 3.703 3.319 3.023 4.054 4.054 3.407 3.100
200 3.203 3.203 3.203 3.168 3.625 3.625 3.625 3.203 4.000 4.000 3.858 3.281
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.461
220 2.938 2.938 2.938 2.938 3.391 3.391 3.391 3.391 3.879 3.879 3.879 3.879
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
HE
35kg
/m³ 1
/50
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.996 3.585 2.719 2.461 4.376 3.641 2.757 2.500 4.870 3.750 2.850 2.581
170 3.874 3.796 2.899 2.633 4.246 3.850 2.945 2.672 4.742 3.961 3.031 2.750
180 3.759 3.759 3.093 2.812 4.122 4.062 3.133 2.850 4.650 4.172 3.219 2.926
190 3.653 3.653 3.281 2.988 4.007 4.007 3.319 3.023 4.634 4.383 3.407 3.100
200 3.556 3.556 3.476 3.168 3.903 3.903 3.515 3.203 4.529 4.529 3.593 3.281
210 3.465 3.465 3.465 3.343 3.804 3.804 3.703 3.383 4.418 4.418 3.781 3.461
220 3.379 3.379 3.379 3.379 3.713 3.713 3.713 3.562 4.315 4.315 3.969 3.633
230 3.300 3.300 3.300 3.300 3.626 3.626 3.626 3.626 4.219 4.219 4.149 3.804
240 3.172 3.172 3.172 3.172 3.546 3.546 3.546 3.546 4.125 4.125 4.125 3.976
250 3.046 3.046 3.046 3.046 3.469 3.469 3.469 3.469 4.040 4.040 4.040 4.040
HE
35kg
2
.0 H
r
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 131 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
20
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.672 3.672 2.664 2.410 3.969 3.796 2.707 2.453 4.265 3.688 2.796 2.531
170 3.515 3.515 2.843 2.577 3.875 3.875 2.883 2.616 4.188 4.188 2.976 2.699
180 3.497 3.497 3.023 2.750 3.788 3.788 3.069 2.788 4.125 4.125 3.157 2.874
190 3.375 3.375 3.211 2.922 3.703 3.703 3.250 2.961 4.062 4.062 3.343 3.038
200 3.219 3.219 3.219 3.093 3.625 3.625 3.438 3.133 4.003 4.003 3.523 3.211
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.500 3.949 3.949 3.949 3.383
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.887 3.887 3.887 3.796
230 2.843 2.843 2.843 2.843 3.343 3.343 3.343 3.343 3.827 3.827 3.827 3.827
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE++
20
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 4.003 3.515 2.664 2.410 4.387 3.569 2.707 2.453 4.879 3.688 2.796 2.531
170 3.881 3.719 2.843 2.577 4.253 3.773 2.883 2.616 4.750 3.891 2.976 2.699
180 3.767 3.767 3.023 2.750 4.129 3.984 3.069 2.788 4.657 4.093 3.157 2.874
190 3.662 3.662 3.211 2.922 4.017 4.017 3.250 2.961 4.641 4.296 3.343 3.038
200 3.565 3.565 3.391 3.093 3.910 3.910 3.438 3.133 4.538 4.500 3.523 3.211
210 3.472 3.472 3.472 3.265 3.812 3.812 3.616 3.304 4.426 4.426 3.703 3.383
220 3.387 3.387 3.387 3.387 3.722 3.722 3.722 3.476 4.323 4.323 3.883 3.554
230 3.308 3.308 3.308 3.308 3.635 3.635 3.635 3.635 4.226 4.226 4.054 3.719
240 - - - - - - - - - - - -
250 - - - - - - - - - - - -
HE+
+ 20
kg
2.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk132 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
25
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.657 2.734 2.476 3.969 3.953 2.781 2.515 4.261 4.046 2.866 2.593
170 3.511 3.511 2.922 2.649 3.875 3.875 2.965 2.688 4.188 4.188 3.054 2.769
180 3.496 3.496 3.116 2.835 3.781 3.781 3.157 2.870 4.120 4.120 3.242 2.945
190 3.375 3.375 3.312 3.015 3.703 3.703 3.350 3.050 4.058 4.058 3.430 3.125
200 3.219 3.219 3.219 3.195 3.625 3.625 3.625 3.234 4.000 4.000 3.891 3.304
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.949 3.949 3.949 3.484
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.835 2.835 2.835 2.835 3.339 3.339 3.339 3.339 3.823 3.823 3.823 3.823
240 2.734 2.734 2.734 2.734 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.188 3.188 3.188 3.188 3.711 3.711 3.711 3.711
HE++
25
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 4.003 3.608 2.734 2.476 4.383 3.664 2.781 2.515 4.876 3.781 2.866 2.593
170 3.879 3.827 2.922 2.649 4.250 3.875 2.965 2.688 4.746 3.992 3.054 2.769
180 3.765 3.765 3.116 2.835 4.126 4.100 3.157 2.870 4.655 4.203 3.242 2.945
190 3.660 3.660 3.312 3.015 4.015 4.015 3.350 3.050 4.639 4.422 3.430 3.125
200 3.562 3.562 3.500 3.195 3.910 3.910 3.546 3.234 4.534 4.534 3.625 3.304
210 3.469 3.469 3.469 3.375 3.812 3.812 3.734 3.414 4.426 4.426 3.819 3.484
220 3.385 3.385 3.385 3.385 3.719 3.719 3.719 3.593 4.321 4.321 4.000 3.664
230 3.304 3.304 3.304 3.304 3.633 3.633 3.633 3.633 4.224 4.224 4.188 3.835
240 3.188 3.188 3.188 3.188 3.550 3.550 3.550 3.550 4.133 4.133 4.133 4.015
250 3.046 3.046 3.046 3.046 3.476 3.476 3.476 3.476 4.046 4.046 4.046 4.046
HE+
+ 25
kg
2.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 133 The White Book V4
STEE
L FI
BR
E C
ON
CR
ETE
For design notes relating to these tables, refer page 7.
HE++
30
kg/m
³ 1/5
0
Sing
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 3.657 3.657 2.781 2.515 3.961 3.961 2.823 2.554 4.261 4.133 2.907 2.633
170 3.508 3.508 2.976 2.695 3.866 3.866 3.015 2.734 4.188 4.188 3.100 2.812
180 3.494 3.494 3.172 2.883 3.781 3.781 3.211 2.922 4.120 4.120 3.296 2.996
190 3.358 3.358 3.358 3.069 3.703 3.703 3.407 3.108 4.058 4.058 3.492 3.180
200 3.219 3.219 3.219 3.219 3.625 3.625 3.625 3.288 4.000 4.000 4.000 3.366
210 3.077 3.077 3.077 3.077 3.515 3.515 3.515 3.515 3.945 3.945 3.945 3.812
220 2.953 2.953 2.953 2.953 3.399 3.399 3.399 3.399 3.883 3.883 3.883 3.883
230 2.827 2.827 2.827 2.827 3.335 3.335 3.335 3.335 3.819 3.819 3.819 3.819
240 2.719 2.719 2.719 2.719 3.281 3.281 3.281 3.281 3.765 3.765 3.765 3.765
250 2.625 2.625 2.625 2.625 3.172 3.172 3.172 3.172 3.711 3.711 3.711 3.711
HE++
30
kg/m
³ 1/5
0
Doub
le S
pan
110 - - - - - - - - - - - -
120 - - - - - - - - - - - -
130 - - - - - - - - - - - -
140 - - - - - - - - - - - -
150 - - - - - - - - - - - -
160 4.000 3.672 2.781 2.515 4.379 3.719 2.823 2.554 4.875 3.835 2.907 2.633
170 3.875 3.875 2.976 2.695 4.246 3.945 3.015 2.734 4.746 4.054 3.100 2.812
180 3.761 3.761 3.172 2.883 4.125 4.125 3.211 2.922 4.653 4.281 3.296 2.996
190 3.657 3.657 3.375 3.069 4.011 4.011 3.407 3.108 4.636 4.500 3.492 3.180
200 3.558 3.558 3.558 3.257 3.907 3.907 3.608 3.288 4.531 4.531 3.688 3.366
210 3.469 3.469 3.469 3.438 3.808 3.808 3.804 3.476 4.422 4.422 3.883 3.546
220 3.383 3.383 3.383 3.383 3.715 3.715 3.715 3.657 4.319 4.319 4.077 3.734
230 3.302 3.302 3.302 3.302 3.629 3.629 3.629 3.629 4.219 4.219 4.219 3.907
240 3.172 3.172 3.172 3.172 3.550 3.550 3.550 3.550 4.129 4.129 4.129 4.093
250 3.046 3.046 3.046 3.046 3.472 3.472 3.472 3.472 4.042 4.042 4.042 4.042
HE+
+ 30
kg
2.0
Hr
0.9mm 1.0mm 1.2mm
Fibres DeckSpan
SlabDepth FW 5 7.5 10 FW 5 7.5 10 FW 5 7.5 10
Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
FLOOR DECK PROFILE
135 TR220 Product Information and Properties136 Basic Load Span Table
Page Title
134 The White Book V4smdltd.co.uk
smdltd.co.uk 135 The White Book V4
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Profile Properties
Section properties are calculated assisted by testing in accordance with Eurocode 3.
Thickness mm Steel Grade N/mm2 Coatings and Options Weight Moment of Inertia cm4/m
Height of Neutral
Axis mm
Area of Steel
mm2/mNominalDesign Thickness
(bare steel) S250 S350 S450Galv
(Z275)HD
(ZM310)Plastisol
(PF)InteriorLiner
Perfo-rated
Crushed Ends kg/m2 kN/m2
1.13 1.09 - - - - - - 14.80 0.15 1374.20 159.90 1681
1.25 1.21 - - - - - - 16.40 0.16 1525.50 159.90 1866
DescriptionThe additive floor TR220 combines high strength of the 220mm deep steel deck profile with the performance of a ribbed reinforced concrete slab to provide a long span floor solution. The use of TR220 installed to bottom flanges provides a slim floor construction to reduce the structural zone without the need for intermediate supports.
Benefits • Un-propped spans up to 6m
• Lightweight compared to other long-span flooring solutions
• Reduces structural floor zone, utilising slab depth within beam web supporting profile on bottom flange of beam
750 Cover width
220
Concrete Volume and Weight
Deflection – This table is based on concrete poured to a constant thickness and does not take account for deflection of the decking or supporting beams (as a guide, to account for the deflection of the decking, a concrete volume of span/250 should be added to the figures indicated). Concrete Weight – These tables indicate concrete and reinforcement weight only, they do not include the weight of the deck. Concrete weights are based on the concrete densities specified in BS EN 1991-1-1 as follows: Normal Weight Concrete – 26kN/m³ (wet) and 25 kN/m³ (dry), Lightweight Concrete – 21kN/m³ (wet) and 20 kN/m³ (dry).
Slab Depth Volume of Concrete Weight of Concrete (Normal Weight) Weight of Concrete (Lightweight)mm m³/m² Wet (kN/m²) Dry (kN/m²) Wet (kN/m²) Dry (kN/m²)
300 0.117 3.04 2.93 2.46 2.34
350 0.167 4.34 4.18 3.51 3.34
400 0.217 5.64 5.43 4.56 4.34
Fire Insulation ThicknessMinimum Insulation Thickness (x) of Concrete (mm)
The image and table above details the minimum insulation thickness required to suit fire design criteria in accordance with BS EN 1994-1-2.
Fire Rating NWC LWC
1.0 Hour 60 80
1.5 Hour 90 100
2.0 Hour 120 120
3.0 Hour NA NA
4.0 Hour NA NA
smdltd.co.uk136 The White Book V4
1.13mm 1.25mmDeck Span
FireRating Mesh Slab
Depth 3.5 5.0 7.5 10.0 3.5 5.0 7.5 10.0Si
ngle
1.0
Hou
rA193 300 5.75 (16) 5.64 (16) 5.75 (20) 5.58 (20) 5.95 (16) 5.64 (16) 5.95 (20) 5.58 (20)
A393 350 - - - - 5.55 (16) 5.55 (16) 5.55 (20) 5.55 (20)
A393 400 - - - - 5.25 (16) 5.25 (16) 5.25 (20) 5.25 (20)
2.0
Hou
r
A252 340 - - - - 5.16 (25) 4.75 (25) 5.40 (32) 4.92 (32)
A393 370 - - - - 5.23 (25) 4.85 (25) 5.35 (32) 5.10 (32)
A393 400 - - - - 5.25 (25) 4.94 (25) 5.25 (32) 5.25 (32)
Sing
le (P
ropp
ed)
1.0
Hou
r
A393 300 7.70 (20) 7.00 (20) 7.35 (25) 6.56 (25) 7.70 (20) 7.00 (20) 7.55 (25) 6.73 (25)
2×A393 350 - - - - 7.73 (20) 7.14 (20) 7.75 (25) 6.97 (25)
2×A393 400 - - - - 7.79 (20) 7.27 (20) 7.93 (25) 7.19 (25)
2.0
Hou
r
2×A252 340 5.14 (25) 4.73 (25) 5.39 (32) 4.91 (32) 5.14 (25) 4.73 (25) 5.39 (32) 4.91 (32)
2×A393 370 - - - - 5.20 (25) 4.83 (25) 5.55 (32) 5.09 (32)
2×A393 400 - - - - 5.27 (25) 4.92 (25) 5.70 (32) 5.25 (32)
Sing
le (P
ropp
ed x
2)
1.0
Hou
r
A393 300 7.70 (20) 7.00 (20) 7.35 (25) 6.56 (25) 7.70 (20) 7.00 (20) 7.55 (25) 6.73 (25)
2×A393 350 - - - - 7.73 (20) 7.14 (20) 7.75 (25) 6.97 (25)
2×A393 400 - - - - 7.79 (20) 7.27 (20) 7.93 (25) 7.19 (25)
2.0
Hou
r
2×A252 340 5.14 (25) 4.73 (25) 5.39 (32) 4.91 (32) 5.14 (25) 4.73 (25) 5.39 (32) 4.91 (32)
2×A393 370 - - - - 5.20 (25) 4.83 (25) 5.55 (32) 5.09 (32)
2×A393 400 - - - - 5.27 (25) 4.92 (25) 5.70 (32) 5.25 (32)
Parameters assumed for span tables:Figures contained in this table are based on design to BS EN 1993-1-3 unless noted otherwise. For extensive calculations covering specific design cases contact SMD Technical Team.
Spans:Measured centre to centre of supports.
Steel Grade:S350
Bearing:Assumed support width of 400mm with minimum deck bearing of 50mm.
Concrete:Normal weight concrete NC30/37. The wet weight of reinforced concrete is taken to be 26kN/m³ and dry concrete 25kN/m³.
Bar:Figures in brackets (XX) indicate diameter of bottom bar reinforcement required, 1 bar per trough.
Propping:Where propping is indicated, additional support devices may be required as part of the propping system, contact SMD Technical team for guidance.
TR220 is an ArcelorMittal product supplied exclusively to the UK market by SMD
MES
H R
EIN
FOR
CEM
ENT
MES
H
1&
2 H
r Table shows Gauge / Loading (kN/m²) / Maximum Permissible Span (m)
smdltd.co.uk 137 The White Book V4
Car Park Construction
Aggressive environment product coatings availableTR220™ and TR80+™ long span decking solutions
Due to its fast-track build times, cost-effectiveness and on-site benefits, metal deck construction is fast becoming the favoured option for car park projects.
BENEFITS USING METAL DECK
www.smdltd.co.uk/CPSMDStructural Floor and Roof Solutions
smdltd.co.uk 139 The White Book V4
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A
05 Floor products to meet your specification06 The Three_step Process07 Technical Design Table Notes08 Before you start, Step 1 - Which Profile and Gauge?11 TR50 Product Information and Properties12 Step 2, TR50 formwork - Which gauge?13 TR50 Formwork span tables15 R51+ Floor Deck Profile 16 R51+ Mesh - Step 2, Composite Slab Chart 17 R51+ Fibres - Step 2, Composite Slab Chart 18 R51+ Mesh - 1.0 Hour fire rating - A14219 R51+ Mesh - 1.0 Hour fire rating - A19320 R51+ Mesh - 1.0 Hour fire rating - A25221 R51+ Mesh - 1.0 Hour fire rating - A39322 R51+ Mesh - 1.0 Hour fire rating - 2xA25223 R51+ Mesh - 1.0 Hour fire rating - 2xA39324 R51+ Mesh - 1.5 Hour fire rating - A14225 R51+ Mesh - 1.5 Hour fire rating - A19326 R51+ Mesh - 1.5 Hour fire rating - A25227 R51+ Mesh - 1.5 Hour fire rating - A39328 R51+ Mesh - 1.5 Hour fire rating - 2xA25229 R51+ Mesh - 1.5 Hour fire rating - 2xA39330 R51+ Mesh - 2.0 Hour fire rating - A14231 R51+ Mesh - 2.0 Hour fire rating - A19332 R51+ Mesh - 2.0 Hour fire rating - A25233 R51+ Mesh - 2.0 Hour fire rating - A39334 R51+ Mesh - 2.0 Hour fire rating - 2xA25235 R51+ Mesh - 2.0 Hour fire rating - 2xA39336 R51+ Fibres - 1.0 Hour fire rating - HE 25kg37 R51+ Fibres - 1.0 Hour fire rating - HE 30kg38 R51+ Fibres - 1.0 Hour fire rating - HE 35kg39 R51+ Fibres - 1.0 Hour fire rating - HE++ 20kg40 R51+ Fibres - 1.0 Hour fire rating - HE++ 25kg41 R51+ Fibres - 1.0 Hour fire rating - HE++ 30kg42 R51+ Fibres - 1.5 Hour fire rating - HE 25kg43 R51+ Fibres - 1.5 Hour fire rating - HE 30kg44 R51+ Fibres - 1.5 Hour fire rating - HE 35kg45 R51+ Fibres - 1.5 Hour fire rating - HE++ 20kg46 R51+ Fibres - 1.5 Hour fire rating - HE++ 25kg47 R51+ Fibres - 1.5 Hour fire rating - HE++ 30kg48 R51+ Fibres - 2.0 Hour fire rating - HE 25kg49 R51+ Fibres - 2.0 Hour fire rating - HE 30kg50 R51+ Fibres - 2.0 Hour fire rating - HE 35kg51 R51+ Fibres - 2.0 Hour fire rating - HE++ 20kg52 R51+ Fibres - 2.0 Hour fire rating - HE++ 25kg53 R51+ Fibres - 2.0 Hour fire rating - HE++ 30kg55 TR60+ Product Information and Properties 56 TR60+ Mesh - Step 2, Composite Slab Chart 57 TR60+ Fibres - Step 2, Composite Slab Chart 58 TR60+ Mesh - 1.0 Hour fire rating - A14259 TR60+ Mesh - 1.0 Hour fire rating - A19360 TR60+ Mesh - 1.0 Hour fire rating - A25261 TR60+ Mesh - 1.0 Hour fire rating - A39362 TR60+ Mesh - 1.0 Hour fire rating - 2xA25263 TR60+ Mesh - 1.0 Hour fire rating - 2xA39364 TR60+ Mesh - 1.5 Hour fire rating - A14265 TR60+ Mesh - 1.5 Hour fire rating - A19366 TR60+ Mesh - 1.5 Hour fire rating - A25267 TR60+ Mesh - 1.5 Hour fire rating - A39368 TR60+ Mesh - 1.5 Hour fire rating - 2xA25269 TR60+ Mesh - 1.5 Hour fire rating - 2xA39370 TR60+ Mesh - 2.0 Hour fire rating - A14271 TR60+ Mesh - 2.0 Hour fire rating - A19372 TR60+ Mesh - 2.0 Hour fire rating - A252
73 TR60+ Mesh - 2.0 Hour fire rating - A39374 TR60+ Mesh - 2.0 Hour fire rating - 2xA25275 TR60+ Mesh - 2.0 Hour fire rating - 2xA39376 TR60+ Fibres - 1.0 Hour fire rating - HE 25kg77 TR60+ Fibres - 1.0 Hour fire rating - HE 30kg078 TR60+ Fibres - 1.0 Hour fire rating - HE 35kg79 TR60+ Fibres - 1.0 Hour fire rating - HE++ 20kg80 TR60+ Fibres - 1.0 Hour fire rating - HE++ 25kg81 TR60+ Fibres - 1.0 Hour fire rating - HE++ 30kg82 TR60+ Fibres - 1.5 Hour fire rating - HE 25kg83 TR60+ Fibres - 1.5 Hour fire rating - HE 30kg84 TR60+ Fibres - 1.5 Hour fire rating - HE 35kg85 TR60+ Fibres - 1.5 Hour fire rating - HE++ 20kg86 TR60+ Fibres - 1.5 Hour fire rating - HE++ 25kg87 TR60+ Fibres - 1.5 Hour fire rating - HE++ 30kg88 TR60+ Fibres - 2.0 Hour fire rating - HE 25kg89 TR60+ Fibres - 2.0 Hour fire rating - HE 30kg90 TR60+ Fibres - 2.0 Hour fire rating - HE 35kg91 TR60+ Fibres - 2.0 Hour fire rating - HE++ 20kg92 TR60+ Fibres - 2.0 Hour fire rating - HE++ 25kg93 TR60+ Fibres - 2.0 Hour fire rating - HE++ 30kg95 TR80+ Product Information and Properties96 TR80+ Mesh - Step 2, Composite Slab Chart 97 TR80+ Fibres - Step 2, Composite Slab Chart 98 TR80+ Mesh - 1.0 Hour fire rating - A14299 TR80+ Mesh - 1.0 Hour fire rating - A193100 TR80+ Mesh - 1.0 Hour fire rating - A252101 TR80+ Mesh - 1.0 Hour fire rating - A393102 TR80+ Mesh - 1.0 Hour fire rating - 2xA252103 TR80+ Mesh - 1.0 Hour fire rating - 2xA393104 TR80+ Mesh - 1.5 Hour fire rating - A142105 TR80+ Mesh - 1.5 Hour fire rating - A193106 TR80+ Mesh - 1.5 Hour fire rating - A252107 TR80+ Mesh - 1.5 Hour fire rating - A393108 TR80+ Mesh - 1.5 Hour fire rating - 2xA252109 TR80+ Mesh - 1.5 Hour fire rating - 2xA393110 TR80+ Mesh - 2.0 Hour fire rating - A142111 TR80+ Mesh - 2.0 Hour fire rating - A193112 TR80+ Mesh - 2.0 Hour fire rating - A252113 TR80+ Mesh - 2.0 Hour fire rating - A393114 TR80+ Mesh - 2.0 Hour fire rating - 2xA252115 TR80+ Mesh - 2.0 Hour fire rating - 2xA393116 TR80+ Fibres - 1.0 Hour fire rating - HE 25kg117 TR80+ Fibres - 1.0 Hour fire rating - HE 30kg118 TR80+ Fibres - 1.0 Hour fire rating - HE 35kg119 TR80+ Fibres - 1.0 Hour fire rating - HE++ 20kg120 TR80+ Fibres - 1.0 Hour fire rating - HE++ 25kg121 TR80+ Fibres - 1.0 Hour fire rating - HE++ 30kg122 TR80+ Fibres - 1.5 Hour fire rating - HE 25kg123 TR80+ Fibres - 1.5 Hour fire rating - HE 30kg124 TR80+ Fibres - 1.5 Hour fire rating - HE 35kg125 TR80+ Fibres - 1.5 Hour fire rating - HE++ 20kg126 TR80+ Fibres - 1.5 Hour fire rating - HE++ 25kg127 TR80+ Fibres - 1.5 Hour fire rating - HE++ 30kg128 TR80+ Fibres - 2.0 Hour fire rating - HE 25kg129 TR80+ Fibres - 2.0 Hour fire rating - HE 30kg130 TR80+ Fibres - 2.0 Hour fire rating - HE 35kg131 TR80+ Fibres - 2.0 Hour fire rating - HE++ 20kg132 TR80+ Fibres - 2.0 Hour fire rating - HE++ 25kg133 TR80+ Fibres - 2.0 Hour fire rating - HE++ 30kg135 TR220 Product Information and Properties 136 TR220 Basic Load Span Table
Page Title
IndexPage Title
smdltd.co.uk 143 The White Book V4
Notes
Changes / Update LogVersion 1.0 • 07/09/2017 Document release
Version 2.0• 04/08/2018 R51 replaced with R51+ TR50 added TR60+ & TR80+ Updated
Version 3.0• 01/06/2019 Fibre concrete span tables added
Version 4.0• 04/11/2019 Table header note updated on page 17, 57 and 97
Version 4.0 - 2019.11
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