Construction codes of Ontario

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Spacing of Supports for Gypsum Board

Spacing of Supports for Gypsum Board Table 9.29.5.3. Forming Part of Sentence 9.29.5.3.(1) Table 9.29.5.3. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. GYPSUM BOARD FINISH Gypsum board is usually applied in single sheets directly on the framing members. On ceilings, the board is applied with the long dimension […]

Stairs

(1) Stairs shall be inclined at an angle of not more than 45° with the horizontal, and their steps shall have risers not more than 210 mm high and treads not less than 220 mm wide exclusive of nosing. (2) Stairway headroom shall be not less than 1 950 mm plus the height of one riser […]

Straight and Curved Runs in Stairs

Straight and Curved Runs in Stairs (1) Except as permitted in Sentence (2), stairs shall consist of, (a) straight flights, (b) curved flights, or (c) spiral stairs. (2) Stairs within houses and individual dwelling units may consist of, (a) flights with rectangular treads and winders provided winders as described in Article 9.8.4.5. […]

Stud Posts Built into Walls

Stud Posts Built into Walls (1) Except as provided in Sentences (2) and (3), stud posts shall be designed in accordance with Part 4. (2) The number of studs in a wall directly below a girder truss or roof beam shall conform to Tables A-34 to A-37, provided, (a) the studs are fastened together to […]

Studs at Sides of Openings

Studs at Sides of Openings (1) Except as provided in Sentence (2), studs shall be doubled on each side of openings so that the inner studs extend from the lintel to the bottom wall plate and the outer studs extend from the top wall plates to the bottom wall plate. (2) Single studs are permitted to […]

Subfloor

Subfloor Plywood, OSB or tongue-and-grooved lumber no wider than 184 mm (8 in. nominal) is typically used for subflooring. Minimum thicknesses for subflooring are shown in Table 22. Plywood and OSB are often used as subflooring under wood-strip flooring or as a combination subfloor and underlay for resilient flooring or ceramic tile. When used as […]

Subfloor Thickness or Rating

Subfloor Thickness or Rating (1) Except as provided in Sentences (2) and (3), subfloors shall conform to Table 9.23.14.5.A. or 9.23.14.5.B. (2) Where the finished flooring consists of not less than 19 mm matched wood strip flooring laid at right angles to joists, spaced not more than 610 mm o.c., subflooring shall be permitted to consist of […]