Construction codes of Ontario

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Support of Walls

Support of Walls (1) Non-loadbearing walls parallel to the floor joists shall be supported by joists beneath the wall or on blocking between the joists. (2) Blocking referred to in Sentence (1) for the support of non-loadbearing walls shall be not less than 38 mm by 89 mm lumber, spaced not more than 1.2 m apart. […]

T and Cross Pipe Fittings Vent and Drainage

T and Cross Pipe Fittings (1) A T fitting shall not be used in a drainage system except to connect a vent pipe. (2) A cross fitting shall not be used in a drainage system. Article 7.2.4.1. Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021

Table – Size and Spacing of Furring

Table – Size and Spacing of Furring Table 9.29.3.1. Forming Part of Sentence 9.29.3.1.(1) Table 9.29.3.1. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Taping Low Temperature Conditions

Taping Low Temperature Conditions (1) In cold weather, heat shall be provided to maintain a temperature of not below 10°C for 48 h prior to taping and finishing and maintained for not less than 48 h after that. Article 9.29.5.10 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Drywall mudding […]

Termination of Handrails

Termination of Handrails (1) Handrails shall be terminated in a manner that will not obstruct pedestrian travel or create a hazard. (2) Except for stairs and ramps serving a house or an individual dwelling unit, at least one handrail at the sides of a stair or ramp shall extend horizontally not less than 300 mm beyond […]

Top Plates

Top Plates (1) Except as permitted in Sentences (2) to (4), no fewer than two top plates shall be provided in loadbearing walls. (2) A single top plate is permitted to be used in a section of a loadbearing wall containing a lintel provided the top plate forms a tie across the lintel. (3) A single […]

Truss or Rafter-Type Roof Ceilings

Truss or Rafter-Type Roof Ceilings Before the 1970s, conventional roof trusses were usually about 150 mm (6 in.) deep where they rested on exterior walls, which didn’t leave much space for attic insulation. Since the oil crisis of the 1970s, roof trusses have a “raised heel” design at the plane of the exterior wall, which […]