In Plain Language

Where a ramp slopes more steeply than 1-in-12, this clause caps how much vertical rise it can cover between landings at 1,500 mm, so a person or wheelchair user isn't on a long continuous steep run without a rest landing.

Common Questions

Q: Why does a steeper ramp need more landings?
A 1,500 mm rise limit on steeper ramps keeps individual runs shorter, reducing fatigue and fall risk since the ramp isn't at the gentler 1-in-12 slope that allows longer uninterrupted runs.

This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.