Oriented Strand Lumber Uses long strands of wood Wide variety of dimensions possible Parallam,...
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![Page 1: Oriented Strand Lumber Uses long strands of wood Wide variety of dimensions possible Parallam, 2.3mx1cm softwood veneers - high-end structural uses TimberStrand,](https://reader036.fdocuments.net/reader036/viewer/2022070306/55180e5955034696438b46bf/html5/thumbnails/1.jpg)
Oriented Strand Lumber
Uses long strands of wood
Wide variety of dimensions possible
Parallam, 2.3mx1cm softwood veneers
- high-end structural uses
TimberStrand, 30cmx2cm hardwood flakes
- window frames, door stock, wall studs
Ellis
TimberStrand Parallam
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Parallam®
Elements: Strips of wooden veneer(1/8-1/10” thick, 1/2” wide, up to 8’ long)
Product Width up to 12 inchesDimensions: Depth up to 21 inches
Length up to 66 feet
Applications: Beams, columns, headers2
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Parallel Strand Lumber
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Parallam® PSL – production overview
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Parallam®• Veneer clipped into long
strips
• Strips coated with glue and aligned parallel to each other
• Cured by microwave heating
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Parallam® PSL – short strand elimination
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Parallam® PSL – strand orientation
wig-wag table
trough
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Parallam® PSL – continuous, microwave press
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Laminated Veneer LumberVariability is reducedin one plane.
Parallam®Variability is reducedin two planes.
Solid woodVariability is at its greatest level.
Reduction of natural variability
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Oriented Strand Lumber - Parallam
Trus Joist
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Parallam® PSL
![Page 12: Oriented Strand Lumber Uses long strands of wood Wide variety of dimensions possible Parallam, 2.3mx1cm softwood veneers - high-end structural uses TimberStrand,](https://reader036.fdocuments.net/reader036/viewer/2022070306/55180e5955034696438b46bf/html5/thumbnails/12.jpg)
Elements: Strands of aspen, cottonwood(1/20” thick, 1” wide, 12” long)
Product Width 1½ -3½ inchesDimensions: Depth 9½-14 inches
Length up to 48 feet
Applications: Beams, wall studs, headers
TimberStrand™
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• Long strands of hardwoods
• Dimensions smaller than Parallam
• Not as strong as Parallam
• Cured by steam pressing
• Very dimensionally stable
TimberStrand™
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TimberStrand™ LSL – manufacturing overview
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Steam-injection pressing
Perforated platen
High pressure steam
Mat of strands(unconsolidated)
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TimberStrand™ LSL - rimboard
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TimberStrand™ LSL - header
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TimberStrand™ LSL – stair stringers
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TimberStrand™
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TimberStrand™ LSL – light framing
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SecondaryWood Products
Furniture
Millwork & Factory-built Housing
Windows & Doors
Cabinets
Wood Products Taxonomy
Engineered WoodProducts
I-Beams
Trusses
CLT
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Elements: Flange- MSR lumber, LVL, ParallamWeb - OSB, Plywood
Product Width 1½ -3½ inchesDimensions: Depth 9 ½-24 inches
Length up to 66 feet
Applications: Floor joists, roof joists
I - Beams
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flange
web
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Wood I-Beams
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Wood I-Beams – manufacturing overview
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I - Beams
Trus Joist
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I- Beam constitution
FLANGE MSR lumber TimberStrand LVL LVL
WEB OSB OSB Plywood OSB
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Wood I-Beams
Flange = MSR lumber Flange = TimberStrand LSLWeb = Plywood Web = Oriented Strandboard
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Wood I-Beams
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Roof Trusses
small dimension, short lengths of wood combined to
produce large-sized, long length support members
held together with truss plates
often custom-designed using MSR lumber
pitch-chord or parallel-chord
Top chord Web
Truss plateBottom chord
Top chord
Bottom chord
Web
Truss plate
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Roof Trusses
Canadian Wood Council
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Cross-Laminated Timber
More technical content and images on CLT
• Laminations of selected dimensional lumber.• Each adjacent layer is oriented with grain perpendicular.• Analagous to plywood made from solid wood rather than
veneer.
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Cross-Laminated Timber
Structurlam
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(Waugh Thistleton Architects)
Cross-Laminated TimberNine-storey residential building (wooden construction)