由以下一种或多种材料构成的楼梯要求:细木工板、刨花板、胶合组件、硬质纤维板、层压板、中密度纤维板、胶合板、木材。盖板、直梯段楼梯和带四分之一和一半楼梯平台的楼梯，主要用于一户住宅内。交叉引用:BS 449BS 585:1BS 1142部分:2BS 1186部分:1BS 1186部分:2BS 1204部分:1BS 4071BS 5268部分:2BS 5395部分:1BS 5578部分:1BS 5669BS 6100部分:4BS 6180BS 6399部分:1BS 6566部分:3BS 6566部分:4BS 6566部分:5BS 6566部分:6BS 6566部分:6BS 6566部分:8DD 74

Requirements for stairs constructed of one or more of the following materials: blockboard, chipboard, glue-laminated components, hardboard, laminboard, medium density fibreboard, plywood, timber. Cover, straight flight stairs and stairs with quarter and half landings, intended primarily for use inside one-family dwellings.Cross References:BS 449BS 585:Part 1BS 1142:Part 2BS 1186:Part 1BS 1186:Part 2BS 1204:Part 1BS 4071BS 5268:Part 2BS 5395:Part 1BS 5578:Part 1BS 5669BS 6100:Part 4BS 6180BS 6399:Part 1BS 6566:Part 1BS 6566:Part 2BS 6566:Part 3BS 6566:Part 4BS 6566:Part 5BS 6566:Part 6BS 6566:Part 7BS 6566:Part 8DD 74