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This list of skyscrapers by floor area includes the largest skyscrapers in the world, measured in square meters (m 2) and square feet (sq ft). To qualify as a skyscraper, a structure must be self-supporting, without relying on tension cables or external supports for stability, and must reach a minimum height of 150 meters (492 feet).
1 square decametre (dam 2) 100 m 2: One are (a) 162 m 2: Size of a volleyball court (18 × 9 metres) [29] 202 m 2: Floor area of a median suburban three-bedroom house in the US in 2010: 2,169 sq ft (201.5 m 2) [30] 261 m 2: Size of a tennis court [31] 437 m 2: Size of an NBA/WNBA/NCAA basketball court [32] 845 m 2
= 10 −52 m 2: square (roofing) ≡ 10 ft × 10 ft = 9.290 304 m 2: square chain (international) sq ch ≡ 66 ft × 66 ft = 1 ⁄ 10 ac ≡ 404.685 642 24 m 2: square chain (US Survey) sq ch ≡ 66 ft (US) × 66 ft (US) = 1 ⁄ 10 US survey acre ≈ 404.6873 m 2: square foot: sq ft ≡ 1 ft × 1 ft: ≡ 9.290 304 × 10 −2 m 2: square foot ...
In the United States old prison cells are usually about 6 by 8 feet (1.8 by 2.4 m) in dimension which is 48 sq ft (4.5 m 2) [citation needed], (moreover, however, American Correctional Association standards call for a minimum of 70 sq ft (6.5 m 2), with steel or brick walls and one solid or barred door that locks from the outside.
Comparison of 1 square metre with some Imperial and metric units of area. The square metre (international spelling as used by the International Bureau of Weights and Measures) or square meter (American spelling) is the unit of area in the International System of Units (SI) with symbol m 2. [1]
The 1,765,000 square foot (164,000 m 2) building contains 65,000 cubic yards (50,000 m³) of concrete and 12,000 tons of structural steel. It took about 2,700 truckloads to excavate the building's foundation, and 1,300,000 man hours over nearly two years to finish. Twenty-eight high speed elevators serve the building.
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Comparison of 1 square foot with some Imperial and metric units of area. The square foot (pl. square feet; abbreviated sq ft, sf, or ft 2; also denoted by ' 2 and ⏍) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States and partially in Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar ...