BU625 Stair design (2018)

Considering stair location and design at the start of a project is essential for the safety of the people using the stairs. Stairs must have uniform treads and risers, visually identifiable leading edges or nosings and handrails fixed at the correct height and location.

This bulletin updates and replaces Bulletin 495 of the same name.

This bulletin covers:

• types of stairways
• design criteria
• handrails
• safety barriers
• lighting
• universal design
• setting out the stair
• external timber stairs
• stair terminology.