The Ontario Building Code | Loads for Occupancy Served

4.1.5.4. Loads for Occupancy Served

(1) The following shall be designed to carry not less than the specified load required for the occupancy they serve, provided they cannot be used by an assembly of people as a viewing area:

(a) corridors, lobbies and aisles not more than 1 200 mm wide,

(b) all corridors above the first storey of residential areas of apartments, hotels and motels, and

(c) interior balconies and mezzanines.