BS 2482:2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Types of timber
5 Dimensions and tolerances
6 Construction
7 Timber quality
8 Factory production control
9 Marking
Annexes
Annex A (informative) - Properties of scaffold boards
Annex B (informative) - Support centres
Annex C (informative) - Method of test for determining
        bending strength
Bibliography

Defines requirements for timber scaffold boards with a width of 225 mm and a thickness of either 38 mm or 63 mm.

This British Standard specifies requirements for timber scaffold boards with a width of 225 mm and a thickness of either 38 mm or 63 mm. It covers board sizing, board construction, and timber quality and grading, for which it specifies: two grades for 38 mm thick scaffold boards, as follows: 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; 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. a single grade for 63 mm thick scaffold boards that is suitable for support at centres up to 2.5 m, which may be selected by visual or machine strength grading. This British Standard does not cover laminated or finger-jointed scaffold boards. NOTE Annex A provides information on performance characteristics. Annex B provides information on support centres.