BS 1129 90th Edition, January 15, 1993
Specification for Portable timber ladders, steps, trestles and lightweight stagings
Includes all amendments and changes through Reaffirmation Notice , August 2, 2013
Additional Comments: INCLUDES AMENDMENT 4
Published By:British Standards Institution (BSI)
Materials, dimensions and finish for items suitable for heavy duty in buildings and other industrial applications. Also gives details for single section and extending ladders more suitable for light trades use and for folding platform steps for domestic purposes.