PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code
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9.5.3.1.or Sentence (2) or (3) shall be contiguous with the entry or entries to those rooms or spaces.
Table 9.5.3.1.
Room Ceiling Heights
Forming Part of Sentences 9.5.3.1.(1) and (4)
Room or Space Minimum Heights(1)
Living room or space, dining room or space, kitchen or 2 300 mm over at least 75% of the required floor area with a clear height of
kitchen space 2 100 mm at any point over the required area
2 300 mm over at least 50% of the required area or 2 100 mm over all of the
Bedroom or bedroom space required floor area. Any part of the floor having a clear height of less than
1 400 mm shall not be considered in computing the required floor area
2 100 mm over at least 75% of the basement area except that under beams
Basement space
and ducts the clearance is permitted to be reduced to 1 950 mm
Bathroom, water closet room or laundry area above 2 100 mm in any area where a person would normally be in a standing
grade position
Passage, hall or main entrance vestibule and finished
2 100 mm
rooms not specifically mentioned above
Notes to Table 9.5.3.1.:
(1) Area of the space shall be measured at floor level.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.