British Standards Institution
BS2482 specifies requirements for Timber scaffold boards, +/- 25mm in length, 38mm thickness +/- 2mm, 225mm Width +/- 5mm
Timber Battens, +/- 25mm in length, 63mm thickness +/- 3mm, 225m Width +/- 5mm.
It covers board sizing, board construction, and timber quality and grading, for which it specifies:
a) Two grades for 38 mm thick scaffold boards, as follows:
1) 1.2 m support centre – a grade that is suitable for support at centres up to 1.2 m, which may be selected by visual or machine strength grading
2) 1.5 m support centre – a grade that is suitable for support at centres up to 1.5 m, which may only be selected by machine strength grading.
b) A single grade for 63 mm thick scaffold batton that is suitable for support at centres up to 2.5 m, which may be selected by visual or machine strength grading.
Testing for: