Stair Nosings & Health and Safety

Stair NosingOSHA (Occupational Safety and Health Administration) and the International Building Code regulate the use of safety stair nosings, which are available at most building supply stores or at various online shops.

OSHA says that safety stair nosings must use a non-slip surface. They are often made of aluminium which is made into a non-slip surface using granules epoxied to the top. If stairs are concrete then the stair nosing is permitted to end three inches from either side of the tread, but if the stairs are steel pans filled with concrete then the nosings must extend all the way across from side to side.

If the stair treads are made of welded metal bars then it is normally considered acceptable to have stairways without safety nosings, but the edges must be clearly marked, for instance with reflective or colourful tape so they are easy to see. Stairways of this type must also have a serrated or non-slip surface, for example by being made of metal treadplates.

The International Building Code states that safety stair nosings must not extend beyond the stair tread more than 1.25 inches, and each one must be the same, meaning the same curvature even on the very top stairs. This curvature should not be more than half an inch and the bevelling also can’t be more than half an inch.

The underside angle of the nosing must be at least 30 degrees from the vertical. Risers need to be solid or sloped at the same angle of no more than 30 degrees from vertical. If the risers aren’t solid, they need to be spaced so that nothing more than four inches wide can pass between them.

Metal stair nosings are a popular solution to this safety issue in order to meet necessary regulations. For a wide range of stair nosings cut to your needed measurements, visit www.clickmetal.co.uk today.

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