Riser
The vertical face of a stair step — the height you lift your foot to the next tread. Comfortable at 150–190 mm; steeper is tiring and unsafe, and the NBC caps it for homes.
More from Interior Building Elements
The vertical face of a stair step — the height you lift your foot to the next tread. Comfortable at 150–190 mm; steeper is tiring and unsafe, and the NBC caps it for homes.