The Ontario Building Code | Distance between Exits
220.127.116.11. Distance between Exits
(1) Except as provided in Sentence (2), the least distance between two required exits from a floor area shall be,
(2) Exits need not comply with Sentence (1) where,
(b) it is necessary to pass through the fire separation to travel from one exit to another exit.
(3) The minimum distance between exitsreferred to in Sentence (1) shall be the shortest distance that smoke would have to travel between the exits, assuming that the smoke will not penetrate an intervening fire separation.