Chapter 11- Provisions for universal design for differently abled, elderly and children Section- 11.6 Stair-ways

This section outlines the general requirements of stairways for differently abled:
a. The minimum width shall be 1.35 m.
b. Height of the riser shall not be more than 0.15 m and width of the tread 300mm.
The steps shall not have abrupt (square) nosing.
c. Maximum number of risers on a flight shall be limited to 12.
d. Handrails shall be provided on both sides and shall extend 0.3 m on the top and
bottom of each flight of steps.