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NYC Building Code

§ 1011.7.1 — § 1011.7.1

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What is NYC BC § 1011.7.1?

Quick Answer

This section establishes requirements for the walking surfaces of stairway treads and landings, specifying a maximum slope and solid surface requirements. It includes exceptions for certain openings in stair walking surfaces based on occupancy type. Applies to building owners responsible for stairway construction and maintenance.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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1011.7.1 Stairway walking surface.

BC § 1011.7.1

The walking surface of treads and landings of a stairway shall not be sloped steeper than one unit vertical in 48 units horizontal (2-percent slope) in any direction. Stairway treads and landings shall have a solid surface. Finish floor surfaces shall be securely attached. Exceptions: 1. Openings in stair walking surfaces shall be a size that does not permit the passage of 1/2-inch (12.7 mm) diameter sphere. Elongated openings shall be placed so that the long dimension is perpendicular to the direction of travel.

2.In Group F, H and S occupancies, other than areas of parking structures accessible to the public, openings in treads and landings shall not be prohibited provided a sphere with a diameter of 1 1/8 inches (28.6 mm) cannot pass through the opening.

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