R 408.10661 Horizontal exits.

Rule 661. (1) A fire area or area of refuge with a horizontal exit shall have, in addition to the horizontal exit or exits, at least 1 means of egress leading to the outside, or have access to an adjacent fire area containing an outside means of egress. (2) Where either side of a horizontal exit is occupied, the doors used in connection with the horizontal exit shall be unlocked. (3) The floor area on either side of a horizontal exit shall be sufficient to hold the occupants of both floor areas allowing not less than 3 square feet clear floor area per person. (4) Where a horizontal exit serves areas on both sides of a wall, there shall be adjacent openings with swinging doors at each, opening in opposite directions, with signs on each side of the wall or partition indicating as the exit door which swings with the travel from that side; or other approved arrangements providing doors always swinging with any possible exit travel.