BS 585-1:1989

Includes plywood risers and treads, edge-to-edge jointed timber and glue-laminated wood components. Recommendations for fixing stairs on site and for the design of stairs with winder flights. Open risers, stairs wider than 122 mm and flights having a total going exceeding 3800 mm are excluded.

This Part of BS 585 specifies materials and construction requirements for stairs constructed of timber, which may include plywood risers and treads and/or edge-to-edge jointed timber and/or glue-laminated wood components. It applies to stairs intended primarily for use inside one-family dwellings, including one or more of the following: straight flights; winder flights; quarter landings; half landings. This Part of BS 585 does not apply to stairs with open risers, stairs having an overall width greater than 1 220 mm, or stairs having a total going in one flight exceeding 3 800 mm. Appendix A gives recommendations for site fixing of stairs. Appendix B gives recommendations for the design of stairs with winder flights. NOTE 1 For stairs constructed of wood-based materials, see BS 585-2. NOTE 2 For guidance on the design of straight stairs, see BS 5395-1. NOTE 3 The titles of the publications referred to in this standard are listed on the inside back cover.