PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code
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3.7.4.9.Plumbing Fixtures for Industrial Occupancies
(1) Except as provided in Sentence (2), the number of water closets and lavatories required for industrial occupancies
shall conform to Table 3.7.4.9.
(2) Not more than one water closet to serve both sexes need be provided in a Group F occupancy where,
(a) the occupant load is not more than 10 persons, or
(b) the total area of the occupancy, excluding basements, is not more than 300 m2.
Table 3.7.4.9.
Plumbing Fixtures for Industrial Occupancies
Forming Part of Sentence 3.7.4.9.(1)
Number of Persons Minimum Number of Water Closets and
of Each Sex Lavatories for Each Sex
up to 9 1
10 to 24 2
25 to 49 3
50 to 74 4
75 to 100 5
6 plus 1 for each additional increment of
over 100
30 persons of each sex in excess of 100
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.