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Some building codes also specify a minimum riser height, often 5 inches (127 mm). [37] Riser-Tread formula: Sometimes the stair parameters will be something like riser plus tread equals 17–18 inches (432–457 mm); [38] another formula is 2 times riser + tread equals 24.6 inches (625 mm), the length of a stride. [14]
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]
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.
NZS 3604:1984 Code of practice for light timber frame buildings not requiring specific design – published October 1984. [11] NZS 3604:1990 Code of practice for light timber frame buildings not requiring specific design – published December 1990. [12] NZS 3604:1999 Timber Framed Buildings – published June 1999. [13]
The 16 Divisions of construction, as defined by the Construction Specifications Institute (CSI)'s MasterFormat, is the most widely used standard for organizing specifications and other written information for commercial and institutional building projects in the U.S. and Canada.
Angle bead, a projecting wood moulding at the corner of a plastered wall [4] Corner bead is similar, [4] but is usually fully embedded in plaster or drywall, and usually plastic or metal; Nosing bead, the rounded projection of a stair tread over the riser below [4] Parting bead, or parting strip, the feature that separates two sashes in a sash ...
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A stairwell or stair room is a room in a building where a stair is located, and is used to connect walkways between floors so that one can move in height. [1] Collectively, a set of stairs and a stairwell is referred to as a staircase or stairway .