The Ontario Building Code | Hose Connections

3.2.9.3. Hose Connections

(1) If a standpipe system is required in a building, 38 mm diam hose connections shall be provided in each storeyin the building.

(2) In addition to the requirements in Sentence (1), if a standpipe system is required, 65 mm diam hose connections shall be installed in each storey in the building if thebuilding,

(a) is more than 25 m high, measured between grade and the ceiling of the top storey, or

(b) has a building area of more than 4 000 m².