Where is Flush Mount Stair Nose?

1. Width: the minimum width at the turning end of the handrail should not be less than the width of the stair section, and should not be less than 1.20m. When it is necessary to transport large objects, it should be widened appropriately.

2. The height of handrail: it is in 4 code for design of residential buildings (GB 50096-1999). 1.3 the stair-step width shall not be less than 0.26M, and the step height shall not be greater than 0.175m. The height of the handrail shall not be less than 0.90M. When the length of the horizontal section of stairs is greater than 0.50m, the height of the handrail shall not be less than 1.05M. The clearance between vertical members of stair railing shall not be greater than 0.11M.

3. Clearance height: generally, it should be greater than 2.00 meters, public buildings should be greater than 2.20 meters, and some minor places should not be less than 1.90 meters. The horizontal distance between the leading edge line of the lowest and highest flush mount stair nose and the inner edge line of the top projection shall not be less than 500mm.