NBC 9.8: Stairs, Ramps, Handrails and Guards

9.8.3.1. Stair Dimensions. Treads and risers shall be uniform in size within any flight of stairs. Maximum riser height of 200mm.

9.8.7.1. Handrails. Handrails shall be provided on at least one side of stairs that are less than 1100mm wide.

9.8.8.1. Guards. Guards shall be provided on every surface to which access is provided and where the elevation difference is more than 600mm.

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