The Ontario Building Code | Proximity of Doors to Stairs

9.9.6.6. Proximity of doors to Stairs

(1) Except as provided in Sentence (2), the distance between a stair riser and the leading edge of a door in its swing, except for doors serving a single dwelling unit, shall be not less than 300 mm.

Note: On July 1, 2017, Sentence 9.9.6.6.(1) 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. 94)

(2) Where there is a danger of blockage from ice or snow, an exit door, including a door serving a single dwelling unit, may open onto not more than one step provided the riser of such step does not exceed 150 mm.

Note: On July 1, 2017, Sentence 9.9.6.6.(2) 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. 94)