S3.23 – S3.28SS3.23 A handrail must extend at least 300mm beyond the top and bottom of a flight and have a profile andprojection that allows a firm grip.except -where the handrail serves a single dwelling.S3.24 The ends of a handrail must be wreathed when not forming part of a protective barrier,except -where the handrail serves a single dwelling.HEADROOMS3.25 A stair, ramp or landing must have a clear headroom of at least 2 metres extending over the whole of thewidth, measured vertically from the pitch line of the flight or the surface of the landing, as shown in thediagram to this standard -Diagram to S3.25: Measuring headroomat leastminimum headroom2 metresat least2 metresat leastlanding 2 metrespitch lineflightlandingINDUSTRIAL STAIRS AND FIXED LADDERSS3.26*An industrial stair or fixed ladder serving areas requiring limited access in any building must be con-structed so as to offer safe passage.STAIRS AND FIXED LADDERS IN AGRICULTURAL BUILDINGSS3.27*A stair or fixed ladder in an agricultural building must be constructed so as to offer safe passage.STEPS IN SLOPING GANGWAYSS3.28 In a building of purpose group 5 where steps form part of sloping gangways serving areas for audiencesor spectators each step must have a rise at least 125mm and not greater than 190mm.Amdt: December 1999 15S