ONLINE VERSIONStairs and laddersK1 See para 1.13Where there is not enough spaceto achieve 2m headroom reduced headroom as shown will besatisfactory1.9m1.8mHalf width of stairDiagram 1.4 Reduced headroom for loft conversionsFor loft conversions in dwellings1.13 Where there is not enough space to achieve the height shown in Diagram 1.3, provide the reduced headroom shown in Diagram 1.4.Width of flights of stairsFor buildings other than dwellings1.14 For stairs that form part of means of escape, refer also to Approved Document B: Fire safety, Volume 2 – Buildings other than dwellinghouses.1.15 For flights of stairs, provide all of the following.a. A minimum stair width between enclosing walls, strings or upstands of 1200mm.b. A minimum width between handrails of 1000mm.c. If the flight is more than 2m wide, divide it into flights a minimum of 1000mm wide, as shown in Diagram 1.5d. For access for maintenance, see paragraph 1.42.For dwellings1.16 In exceptional circumstances where severely sloping plots are involved, a stepped change of level within the entrance storey may be unavoidable. In those instances ensure that stairs within the entrance storey of a dwelling have flights with a minimum stair width of 900mm.8 t K, 2013 edition t K, 2013 edition t K, 2013 edition Approved Document K, 2013 edition Building Regulations 2010ONLINE VERSIONONLINE VERSIONONLINE VERSION