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Pounds per Square Foot (psf)

Pounds or Pounds Force per Square Foot is a British (Imperial) and American pressure unit which is directly related to the psi pressure unit by a factor of 144 (1 sq ft = 12 in x 12 in = 144 sq in). 1 pound per square foot equals 47.8803 pascals.

The psf pressure unit is mostly for lower pressure applications such as specifying building structures to withstand a certain wind force or rating a building floor for maximum weight load.

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