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A stair tread is the horizontal portion of a set of stairs on which a person walks. The tread can be composed of wood, metal, plastic, or other materials. In residential settings, treads can be covered in carpeting. Stair treads can come in non-slip varieties, particularly in commercial or industrial locations. [1]
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An advantage of alternating tread stairs is that people can descend while facing forward, in the direction of travel. The only other alternative in such short spaces would be a ladder, which requires a backward-facing descent. Alternating tread stairs may not be safe for small children, the elderly, or the physically challenged.
The nosing is the protrusion beyond the riser when vertical risers are used, or beyond the back of the tread below, when angled risers or no risers are used. Anti-slip strips or nosings may be applied. These stair parts can be manufactured from a variety of materials including aluminum, vinyl, and wood.
During the September 11 attacks, the stairs were an escape route for hundreds of evacuees from 5 World Trade Center, a 9-floor building adjacent to the Twin Towers. The staircase was moved from its original location in 2008, and in 2010 it became part of the National September 11 Memorial & Museum .
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related to: retro stair treads- 3785 Park Mill Run Dr, Hilliard, OH · Directions · (614) 777-6170