7.5.8.2.Individual Vents and Dual Vents

(1) The nominal pipe size of individual vents and dual vents shall be determined using Table 7.5.7.1. based on the
     largest trap served.

     (2) When sizing an individual vent or a dual vent, the length is not taken into consideration.

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.