Newfoundland and Labrador Building Code: Stairs & Guards

Newfoundland and Labrador adopts the National Building Code (NBC) 2020 directly, in force since 28 September 2022, with no separately titled provincial code. A future move to NBC 2025 is possible, so confirm you’re still working to the 2020 edition before you build.

For a house stair the figures match the NBC 2020 baseline — 200 mm max riser, 255 mm min run, 1950 mm headroom, 860 mm min width, 865–1070 mm handrails, 900 mm guards (1070 mm otherwise), the 600 mm trigger and the 100 mm gap. See the Canada stair & guard rules.