The Ontario Building Code | Loads on Stairs and Ramps Loads on Stairs and Ramps

(1) Except as required in Articles and, stairs and ramps shall be designed for strength and rigidity under uniform loading criteria to support specified loads of,

(a) 1.9 kPa for stairs and ramps serving a single dwelling unit, and

Note: On July 1, 2017, Clause of Division B of the Regulation is amended by striking out "single dwelling unit" and substituting "houseor an individual dwelling unit". (See: O. Reg. 139/17, s. 85)

(b) 4.8 kPa for other stairs and ramps.