Stair case Specifications
All buildings other than Apartment Buildings up to three storey shall have stair-cases having a minimum clear width of 3 ft-6 inches (1.07 m) and 4 ft (1.22 m) where they exceed three storey.
The riser of the stair-case step shall not be more than 7.1/2 inches (0.19 m) and the tread not less than 10 inches (0.25 m)
#stairs #stairsdesign
