Dimensions for Runs and Rectangular Treads

(1)  The run for rectangular treads shall conform to Table 9.8.4.1.                (2)  The depth of a rectangular tread shall be not less than its run and not more than its run plus 25 mm. Article 9.8.4.2 Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.
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Dimensions for Tapered Treads

Dimensions for Tapered Treads (1)  Except as provided in Sentence (2) and Articles 9.8.4.5. and 9.8.4.5A., tapered treads shall have a run that,     (a)   is not less than 150 mm at the narrow end of the tread, and     (b)   complies with the dimensions for rectangular treads specified in Table 9.8.4.1. when measured at a […]
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Dimensions of Landings

(1)  Except as provided in Sentences (2) to (7), landings shall be,     (a)   at least as wide as the width of the stair or ramp in which they occur, and     (b)   at least as long as the width of the stair or ramp in which they occur.     (2)  Where the landing in a stair […]
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Ergonomic Design (Handrail)

Ergonomic Design (Handrail) (1)  The clearance between a handrail and any surface behind it shall be not less than,     (a)   60 mm, if the surface behind the handrail is rough or abrasive, or     (b)   50 mm, in all other cases.     (2)  All handrails shall be constructed so as to be continually graspable along their […]
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Exit Stairs, Ramps and Landings

Exit Stairs, Ramps and Landings (1)  Where a stair, ramp or landing forms part of an exit, the appropriate requirements in Sections 9.9. and 9.10. shall also apply. Article 9.8.1.3 Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.
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Exterior Concrete Stairs

Exterior Concrete Stairs (1)  Exterior concrete stairs with more than two risers and two treads shall be,     (a)   supported on unit masonry or concrete walls or piers not less than 150 mm in cross-section, or     (b)   cantilevered from the main foundation wall.     (2)  Stairs described in Sentence (1), when cantilevered from the foundation wall, […]
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Exterior Stairs

Exterior Stairs Exterior stairs can be wood or concrete. Concrete stairs with more than two risers must be supported on piers or cantilevered from the foundation wall. The dimensions of risers and treads for exterior stairs are the same as for interior stairs. Concrete for exterior stairs must have a compressive strength of at least […]
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