(1)
Except as provided in Sentences (2) and (3), the clear opening height of doorways shall be not less than 2 030 mm high at
(a)
exit doors,
(b)
doors that open into or are located within a public corridor, and
(c)
doors that open into or are located within another facility that provides access to exit from a suite.
(2)
The clear opening height under door closers and other devices in doorways described in Sentence (1) shall be not less than 1 980 mm.
(3)
Doorways serving a single dwelling unit or a house with a secondary suite need not comply with Sentences (1) and (2). (See also Article 9.5.5.1.)