The Ontario Building Code | Doors Between Garages and Dwelling Units
9.10.13.15. doors Between garages and Dwelling Units
Note: On July 1, 2017, the heading to Article 9.10.13.15. of Division B of the Regulation is revoked and the following substituted: (See: O. Reg. 139/17, s. 108 (1))
9.10.13.15. doors Between garages and houses or Dwelling Units
(1) A door between an attached or built-in garage and a dwelling unit shall be tight-fitting and weatherstripped to provide an effective barrier against the passage of gases and exhaust fumes and shall be fitted with a self-closing device.
Note: On July 1, 2017, Sentence 9.10.13.15.(1) of Division B of the Regulation is amended by striking out "a dwelling unit" and substituting "the house or the individual dwelling unit it serves". (See: O. Reg. 139/17, s. 108 (2))
(2) A doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway between an attached or built-in garage and a dwelling unit shall not be located in a room intended for sleeping.
Note: On July 1, 2017, Sentence 9.10.13.15.(2) of Division B of the Regulation is amended by striking out "a dwelling unit" and substituting "the house or the individual dwelling unit it serves". (See: O. Reg. 139/17, s. 108 (2))
In Plain Language
Doors between garages and dwelling units must meet the specific requirements set out in this article, since vehicle fires and exhaust in an attached garage pose a direct risk to the living space next door.
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.