Construction codes of Ontario

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Columns and Beams

Columns and Beams Wood or steel columns are usually used in the basement to support beams, which, in turn, support the inner portion of the first-floor joists as well as loads from upper floors transferred through walls, floors and posts. Cylindrical structural-steel columns (called “teleposts”) with adjustable lengths and bearing plates at both ends are […]

Columns Application

Columns Application (1) This Section applies to columns used to support, (a) beams carrying loads from not more than 2 wood frame floors where, (i) the supported length of joists bearing on such beams does not exceed 5 m, and (ii) the live load on any floor does not exceed 2.4 kPa, […]

Combustible Glazing and Skylights

(1) Combustible skylight assemblies are permitted in a building required to be of noncombustible construction if the assemblies have a flame-spread rating not more than, (a) 150, provided the assemblies, (i) have an individual area not more than 9 m2, (ii) have an aggregate horizontal projected area of the openings through the ceiling […]

Combustible Roofing Materials

Combustible Roofing Materials (1) Combustible roof covering that has an A, B or C classification determined in conformance with Subsection 3.1.15. is permitted on a building required to be of noncombustible construction. (2) Combustible roof sheathing and roof sheathing supports installed above a concrete deck are permitted on a building required to be of noncombustible construction […]

Commercial species of lumber

Commercial species of lumber Table 10 Source : Canada Mortgage and Housing Corporation (CMHC)

Continuity of Rafters and Joists

Continuity of Rafters and Joists (1) Roof rafters and joists and ceiling joists shall be continuous or shall be spliced over vertical supports that extend to suitable bearing. Article 9.23.13.1. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Continuity of Studs

Continuity of Studs (1) Wall studs shall be continuous for the full storey height except at openings and shall not be spliced except by finger-jointing with a structural adhesive. Article 9.23.10.4. Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021.