The Ontario Building Code | Ramp Slope Ramp Slope

(1) Except as required for aisles by Article, the maximum slope of a ramp shall be,

(a) 1 in 10 in any assembly, care,care and treatment, detention or residential occupancy,

(b) 1 in 6 in rooms or floor areas classified as mercantile occupancy or industrial occupancy,

(c) 1 in 8 in any other floor area, and

(d) 1 in 10 for an exterior ramp.