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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]
Stairs are a structure designed to bridge a large vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by stepping from one to another step in turn.
Oak timber is a strong and hard wood with many uses, such as for furniture, floors, building frames, and veneers. [70] The wood of a red oak Quercus cerris (the Turkey oak) has better mechanical properties than those of the white oaks Q. petraea and Q. robur; the heartwood and sapwood have similar mechanical properties. [71]
The wood is ring-pored, has a brown heartwood and a light reddish sapwood. [8] The cork oak develops a taproot that reaches a depth of 1 to 2 m (3 + 1 ⁄ 4 to 6 + 1 ⁄ 2 ft) and from which several meters long, horizontally running side roots extend. [9] The trees can live over 400 years, and harvested specimens can be 150 to 200 years old. [6 ...
Balusters may be formed in several ways. Wood and stone can be shaped on the lathe, wood can be cut from square or rectangular section boards, while concrete, plaster, iron, and plastics are usually formed by molding and casting. Turned patterns or old examples are used for the molds.
Traditionally, in North American cities, the stoop served an important function as a spot for brief, incidental social encounters. Homemakers, children, and other household members would sit on the stoop outside their home to relax, and greet neighbors passing by.
Bog-wood (also spelled bogwood or bog wood), also known as abonos and, especially amongst pipe smokers, as morta, [1] is a material from trees that have been buried in peat bogs and preserved from decay by the acidic and anaerobic bog conditions, sometimes for hundreds or even thousands of years.
The World Trade Center Survivors' Network urged the Port Authority and Silverstein to make a commitment to preserve the stairs, but neither made a public decision on the issue. Meanwhile, the already heavily damaged stairs continued to deteriorate due to the heavy vibrations caused by construction of the permanent PATH station , the World Trade ...