Minimum Outdoor Air Supply and Main Trunk Duct Sizes Table 9.32.3.7.A. Forming Part of Sentence 9.32.3.7.(5) [mm]: Inche(s): = Table 9.32.3.7.A. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Similar articles Venting of Laundry-Drying Equipment Kitchen, Bathroom and Water Closet Room Exhaust Duct Size Table Design and Installation Requirements Heating and Air-Conditioning Required Barrier to Air Leakage