Construction codes of Ontario

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Surface Defects Underlay

Surface Defects Underlay (1) Underlay beneath resilient or ceramic floors applied with an adhesive shall have all holes or open defects on the surface patched so that the defects will not be transmitted to the finished surface. Article 9.30.2.5 Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, […]

Table – Fasteners for Sheathing and Subflooring

Table – Fasteners for Sheathing and Subflooring Table 9.23.3.5. Forming Part of Sentence 9.23.3.5.(1) Table 9.23.3.5 Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021.

Thickness of Subflooring

Thickness of Subflooring Table 9.23.14.5.A. Forming Part of Sentences 9.23.14.5.(1) and 9.23.15.7.(1) Table 9.23.14.5.A. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Trimmer Joists

Trimmer Joists (1) Trimmer joists around floor openings shall be doubled when the length of the header joist exceeds 800 mm. (2) When the header joist exceeds 2 m in length, the size of the trimmer joists shall be determined by calculations. Article 9.23.9.6. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes […]

Undersized Lumber

(1) Joist, rafter, lintel and beam members up to 5% less than the actual Canadian standard sizes are permitted to be used provided the allowable spans for the grade and species of lumber under consideration are reduced 5% from those shown in the span tables for full size members. Article 9.3.2.8 Ontario Regulation 332/12 Building Code, […]

Water Resistance Finished flooring

Water Resistance Finished flooring (1) Finished flooring in bathrooms, kitchens, public entrance halls, laundry and general storage areas shall consist of resilient flooring, felted-synthetic-fibre floor coverings, concrete, terrazzo, ceramic tile, mastic or other types of flooring providing similar degrees of water resistance. Article 9.30.1.2. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational […]

Wood Flooring Staples

Wood Flooring Staples (1) Staples are permitted to be used to fasten wood strip flooring not more than 7.9 mm in thickness and not more than 50 mm in width provided the staples, (a) are not less than 29 mm long, (b) have a shank diameter of not less than 1.19 mm, (c) […]