There is no minimum width stipulated for a domestic staircase within part K of the building regulations. Requirement K1 applies only to stairs, ladders and ramps which form part of the building. BS6180 1982: Code of practice for protective barriers in and about buildings. The Approved Document can be downloaded below. Details of Part K (Approved Document K) of the Building Regulations. Part K. Approved Document K: Protection from falling, collision and impact. Please find some notes from Approved Document K of the Building Regulations 1992: Stairs, Ramps and ... BS5395 Part 1 1977: Stairs, Ladders and Walkways covers the design of straight stairs. See Image 3. The latest edition came into effect 6 April 2013. 0.1 This approved document gives guidance on how to comply with Parts K1, K2, K3, K4, K5.1, K5.2, K5.3, K5.4 and K6 of the Building Regulations. What are the building regulations? Volume 1. Handrails. The format of this standard type of staircase is covered in the Building Regulations Part K, the main points being a tread going of more than 220mm and a tread rise of a maximum of 220mm. Building Regulations Part K (Protection from falling, collision and impact) covers the design of staircases, this article looks at how these regulations and other design issues apply to staircases in domestic dwellings. The rules within Part K don’t apply to spiral or helical staircase designs. Should be clear of permanent obstructions (e.g. Part K handrails for stairs. The Staircases Building Regulations cover the design of a staircase and is covered by BS5395: Part 1, BS5395 Part 3, & BS 5960 Part 5 and others British Standards. By Dee J, ... We've got a narrow staircase in a part of the building not yet signed off by bc. For fire escape purposes from a small block of flats, BS9991 requires a 750mm wide stair. For access rooflights the final step should be considered a landing as it appears at the top of the flight of stairs in accordance with Section 1.20 Landings for stairs (for all buildings). Part K give more detail for the requirements for winders and this document is pretty easy to follow. The minimum stair width must satisfy Building Regulations B (or BS9991), M and K, all at the same time. We always suggest you contact your local council prior to any work. PART K PROTECTION FROM FALLING, COLLISION AND IMPACT: Stairs, ladders and ramps. Approved Document K: protection from falling, collision and impact Ref: ISBN 978 1 85946 484 7 PDF , 1.98MB This file may not be suitable for users of assistive technology. The principle and an overriding requirement is contained in the Building Regulations (Document K) where it is stated that: ... .” – Jump straight to this section of Part K. Which in lay terms (and for the partially sighted in particular) achieving this requirement means that the Stair Nosings create a ‘ladder effect’ to the stairway when viewed from either the top or bottom. Stairs, ladders and ramps shall be so designed, constructed and installed as to be safe for people moving between different levels in or about the building. Additional Guidance BCA Guidance. 2010 amendments. We've never had a handrail fitted. Building regulations guidance: part K (protection from falling, collision and impact) | GOV.WALES Skip to main content Building regulations for access to and use of buildings in dwellings and buildings other than dwellings and provides a baseline for accessibility in the built environment. Guidance on meeting these requirements on materials and workmanship is contained in the Approved Document to … K1. Building regulations approval is required to convert a loft or attic into a liveable space. 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