Designing Buildings: Created page with "The 2026 amendment to Approved Document B, Fire Safety, Volume 1: Dwellings, defines an interlocked stair as: ‘Two interlocking protected stairways providing two separate paths..."

2025-01-23T08:39:02Z

Created page with "The 2026 amendment to Approved Document B, Fire Safety, Volume 1: Dwellings, defines an interlocked stair as: ‘Two interlocking protected stairways providing two separate paths..."

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The 2026 amendment to Approved Document B, Fire Safety, Volume 1: Dwellings, defines an interlocked stair as: ‘Two interlocking protected stairways providing two separate paths of egress within one protected shaft or separated protected shafts. These are also sometimes referred to as scissor stairs or stacked stairs.’

= Related articles on Designing Buildings =

* Approved document B.
* Escape route.
* Evacuation lift.
* Evacuation lift lobby.
* Evacuation.
* Fire.
* Lobby.
* Means of escape.
* Place of safety.
* Protected escape route.
* Protected shaft.
* Protected stair.

[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Building_safety]]

Interlocked stair - Revision history

Designing Buildings: Created page with "The 2026 amendment to Approved Document B, Fire Safety, Volume 1: Dwellings, defines an interlocked stair as: ‘Two interlocking protected stairways providing two separate paths..."