Last edited 05 Oct 2020

Width of doors stairs and escape routes

The building regulations Approved Document B2, ‘Fire safety: Buildings other than dwellinghouses’, suggests that the width of:

In the case of escape routes and stairs, handrails and strings which do not intrude more than 100 mm into these widths may be ignored (see Diagram C1).

The rails used for guiding a stair-lift may be ignored when considering the width of a stair. However, it is important that the chair or carriage is able to be parked in a position that does not cause an obstruction to either the stair or landing.

Measurement of door width.jpg

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