£4.70
This document aims to give advice on 38×225 BS 2482:2009 1.5 m support span boards | 38×225 BS 2482:2009 1.2m support span boards | 63×225 BS 2482:2009 2.5m support span boards | 38×225 BS 2482:1981 1.5 m support span boards.
2 pages
BS2482:2009 defines both visual and machine strength grading standards for 38mm x 225mm boards supported at 1.2m spans and 63mm x 225mm boards supported at 2.5m spans; and machine strength grading standards only for 38mm x 225mm boards supported at 1.5m spans. This guidance is reviewed on the basis of removing A grade boards that should not exist. A visually graded board is still a BS2482 product and should be marked as such on the end band. 6 pages
This guidance explains the differences between ‘supplementary’ and ‘check’ couplers and gives typical design applications where high coupler forces could be expected and where additional loadbearing capacity to connections may be required. It also contains guidance on coupler configurations and expected safe working loads (SWLs) where supplementary couplers are used. To ensure that SWL values are as accurate as possible, data provided within this document is based on practical testing rather than calculation. 2 pages
This guidance gives details of the Fire Retardant treatments available for timber scaffold boards and battens. 4 pages
TG4:19 had amendments predominantly in relation to the orientation of ring bolts where current thinking is that settlement is probably greater than side wind loads so reduces potential shear loads on the bolt. Other minor changes were cosmetic. A recent update in April 2019 saw the removal of one reference only when the guidance was reissued as TG4:19. 24 pages
This guidance gives details of various products available which will satisfactorily hold down scaffold boards to prevent movement. Users should satisfy themselves that any proprietary system meets their requirements. 4 pages
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