Construction codes of Ontario

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Joints Offset Panel-Type Underlay

Joints Offset Panel-Type Underlay (1) Where panel-type underlay is required to be installed over plywood, or OSB or waferboard, the joints in the underlay shall be offset at least 200 mm from the joints in the underlying subfloor. Article 9.30.2.4 Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for […]

Joists Supported by Beams

Joists Supported by Beams (1) Floor joists may be supported on the tops of beams or may be framed into the sides of beams. (2) When framed into the side of a wood beam, joists referred to in Sentence (1) shall be supported on, (a) joist hangers or other acceptable mechanical connectors, or (b) not […]

Lateral Support Required

Lateral Support Required (1) Masonry walls shall be laterally supported by floor or roof construction or by intersecting masonry walls or buttresses. (2) The spacing of supports required in Sentence (1) shall be not more than, (a) 20 times the wall thickness for all loadbearing walls and exterior non-loadbearing walls, and (b) 36 times […]

Lumber Subflooring

Lumber Subflooring (1) Lumber subflooring shall be laid at an angle of not less than 45° to the joists. (2) Lumber subflooring shall be fully supported at the ends on solid bearing. (3) Lumber for subflooring shall be of uniform thickness and not more than 184 mm wide Article 3.4.5.9 Ontario Regulation 332/12 Building Code, Information […]

Materials and Thickness Panel-type underlay

Materials and Thickness Panel-type underlay (1) Panel-type underlay shall be not less than 6 mm thick and shall conform to, (a) ANSI A208.1, “Particleboard”, (b) CAN/CGSB-11.3-M, “Hardboard”, (c) ANSI/HPVA HP-1, “Hardwood and Decorative Plywood”, (d) CSA O121, “Douglas Fir Plywood”, (e) CSA O151, “Canadian Softwood Plywood”, (f) CSA O153, “Poplar […]

Maximum Deflections

Table 9.4.3.1.Maximum Deflections Forming Part of Sentence 9.4.3.1.(1) Table 9.4.3.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Method of Measurement

Method of Measurement (1) Except as otherwise specified in this Part, the areas, dimensions and heights of rooms or spaces shall be measured between finished wall surfaces and between finished floor and ceiling surfaces. Article 9.5.1.2 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.