Stairs, ladders and walkways - Code of practice for the design of helical and spiral stairs

BS 5395-2:1984 Stairs, ladders and walkways. Code of practice for the design of helical and spiral stairs

BS 5395-2 gives recommendations for the design of helical and spiral stairs, to be used internally or externally in all types of building constructions.

It covers only stairs which are circular on plan and does not deal with ramps.

BS 5395-2 also gives guidance on the geometry of helical and spiral stairs.

Contents of BS 5395-2:

• Foreword

• Scope

• Definitions

• Alternative materials, components and methods of design and construction

• Materials

• Design

• Fire protection and means of escape

• Load tests

• Design geometry

• Typical layouts for stairs

• Relationship between rise and going

• Measurement of clear width and goings

• Landings

• Maximum gap between column and tread

• Calculation of going

• Calculation of clear headroom

• Structural materials

• Sizes of stairs

• Publications referred to