Lumber Measurements (#2986)
"The actual measurements of lumber don't match the spoken size (A 2x4 isn't actually 2 inches by 4 inches, its 1.5"x3.5") Up to 2 inches, the actual measurements are less by a quarter inch (1/4"), from 2"-8", they're less by half an inch, and above 8", less by three-quarters. "
Comments
"Actually its less a quarter inch for 1 nominal (1x4 is 3/4" x 3 1/2"). Less a half inch from 2 to 7 inches nominal (a 2x6 is 1 1/2" x 5 1/2"). Less 3/4" from 8" and above* (a 2x8 is 1 1/2" x 7 1/4"). *Except for 6x material (a 6x8 is supposidly 5 1/2" x 7 1/2")."
Gary Wheeler, AIA, LEED AP, Architect, US
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