The Ontario Building Code | Front Edge of Stair Treads
9.9.2.5. Front Edge of Stair Treads
(1) Except for curved stairs, the front edge of stair treads in exitsand access to exits shall be at right angles to the direction of exit travel.
9.9.2.5. Front Edge of Stair Treads
(1) Except for curved stairs, the front edge of stair treads in exitsand access to exits shall be at right angles to the direction of exit travel.
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