Precast Production Tolerances

As per production drawings, otherwise follow standard guide for tolerances as attached

in this section.

Guide on Tolerances (RC Component)

Dimensiona) Length of member

- Up to 3m

- 3m to 4.5m

- 4.5m to 6m

- Every subsequent 6m

b) Cross sectional dimension

c) Straightness / Bow (Deviation from intended)

- Up to 3m

- 3m to 4.5m

- 4.5m to 6m

- Every subsequent 6m

d) Squareness / Bow (Different)

- Up to 1.2m (incl.)

- Over 1.2m to less than 1.8m

- 1.8m and over

e) Twist (Differences from other 3 corners)

- Up to 600mm wide and 6m in length

- Over 600mm wide and any length

±6mm

± 9mm

± 12mm

± 6mm (additional)

+ 10mm / - 5mm

6mm

9mm

12mm

6mm (additional)

6mm

9mm

12mm

6mm

12mm

Openinga) Size

b) Location

+ 10mm

± 25mm

Lifting Point / Inserts

Sleeve and Connections

Cast-In Items

Opening for Bolted Connection

Insert Plate

Anchor Bolt (on top of column)

± 20mm

± 6mm

± 6mm

± 3mm

± 5mm

± 2mm