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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]
These stairs often (including this example) illustrate the mathematical principle of glide plane symmetry: the mirror image with respect to the vertical center plane corresponds to a shift by one step. Alternating tread stairs are sometimes referred to as "witches stairs", in the supposed belief that they were created during an earlier era as ...
The model shown here, retrofitted with metal steps in the 1990s, is among the oldest of the store's 40 escalators. Otis "L-type" escalators with distinctive wood treads (not shown) have operated in the store since 1927. Wooden treads on a 1930s Otis escalator, formerly at Wynyard railway station, Sydney, Australia
Image credits: architectanddesign #5. The Tulip Stairs are the first centrally unsupported stairs in London, England, copying a Venetian model. The stone treads lock perfectly into each other and ...
In two-story construction, openings are left in the floor system for a stairwell, in which stair risers and treads are most often attached to squared faces cut into sloping stair stringers. [citation needed] Interior wall coverings in light-frame construction typically include wallboard, lath and plaster or decorative wood paneling. [citation ...
Good lighting is important in a staircase so users see where they are going and to prevent falls. [6] There is often a window on the wall to let in daylight.In many cases, indoor stairs are placed far inside the building structure, and it is often not easy to get access to a wall on the outside where it would be natural to have a regular window for letting daylight in.
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1680 Stringtown Road, Grove City, OH · Directions · (614) 539-4554