The Ontario Building Code | Outdoor Places of Assembly
3.3.2.9. outdoorref ="http://thehandyforce.com/doors/" title ="Toronto Door installer">door Places of Assembly
(1) A Group A, Division 4 occupancy and each tier or balcony that has a capacity of more than,
(a) 1 000 persons shall have no fewer than three separate exits, or
(b) 4 000 persons shall have no fewer than four separate exits.
(2) In a Group A, Division 4 occupancy, every seat shall be located so that the travel distance is not more than 45 m measured along the path of travel from the seat to,
(a) the ground,
(b) an exit,
(c) an opening to a passageway leading from the seating area, or
(d) a portal, a vomitory or any other opening through the seating deck structure.
(3) Exits from outdoorref ="http://thehandyforce.com/doors/" title ="Toronto Door installer">door stadia or grandstands shall be located not more than 25 m apart.
(4) The capacity of a means of egress for a Group A, Division 4 occupancy shall conform to the requirements of Sentence 3.4.3.2.(3).
(5) Aisles in a Group A, Division 4 occupancy,
(a) shall be located so that there are not more than 20 seats between any seat and the nearest aisle, and
(b) shall be not less than 1 200 mm wide, except that an aisle serving less than 60 persons is permitted to be 750 mm wide.
In Plain Language
This clause sets requirements for fire separations between patient/resident rooms and corridors in care occupancies, slowing fire and smoke spread to give staff more time to assist occupants who need help evacuating.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.