The Ontario Building Code | Doorway Opening Sizes

9.5.11.1. doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway Opening Sizes

(1) Except as provided in Articles 9.5.11.3., 9.9.6.2. and 9.9.6.3., doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway openings within dwelling units shall be designed to accommodate at least the door sizes in Table 9.5.11.1. for swing-type doors or folding doors.

Table 9.5.11.1.
Minimum door Sizes

Forming Part of Sentence 9.5.11.1.(1)

Item	Column 1 At Entrance to:	Column 2 Minimum Width, mm	Column 3 Minimum Height, mm
1.	Dwelling unit (required entrance)	810	1 980
	Vestibule or entrance hall
2.	Stairs to a floor level that contains a finished space	810	1 980
	All doors in at least one line of passage from the exterior to the basement
	Utility rooms
3.	Walk-in closet	610	1 980
4.	Bathroom, water closet room, shower room(1)	610	1 980
5.	Rooms located off hallways that are permitted to be 710 mm wide	610	1 980
6.	Rooms not mentioned above, exterior balconies	760	1 980

Notes to Table 9.5.11.1.:

⁽¹⁾ See Article 9.5.11.3.