Complementary steps - tactile warnings requirements

Diagram 2.3 Complementary steps - tactile warnings (b) external steps showing side access onto intermediate landing and having not less than 800 mm from the access to the top and bottom of flights - stair width not less than 400 mm - tactile warning at top landing 400 mm - tactile warning at bottom landing 400 mm - visual contrast to tread and riser - continuous handrail opposite access - corduroy hazard warning surface 400 mm (c) external steps showing side access onto intermediate landing and having less than 800 mm from the access to the top and bottom of flights - stair width not less than 400 mm - corduroy hazard warning surface at bottom landing - corduroy hazard warning surface less than 800 mm (where approach is less than 800 mm) - corduroy hazard warning surface to extend not less than 400 mm at each side of the flight (unless the landing is bounded at a distance of less than 400 mm by a return wall) and stop 400 mm from the nearest nosing - corduroy hazard warning surface to the top and bottom landings should be 800 mm deep where the approach to the steps is head-on and 400 mm deep where the approach is not head-on - visual contrast to tread and riser - not less than 400 mm at top landing - not less than 400 mm at bottom landing - not more than 1200 mm and not less than 800 mm (intermediate landing depth)