The dimensions of four pieces of lumber are listed below. Which reflects the dimensions of one board foot?
A. Six inches long, twelve inches wide, one inch thick
B. Six inches long, twelve inches wide, two inches thick
C. Six inches long, six inches wide, one inch thick
D. Twelve inches long, twelve inches wide, six inches thick
Answer: B. Six inches long, twelve inches wide, two inches thick
Explanation: A board foot of lumber is any equivalent of one foot (or twelve inches) long, one foot wide, and one inch thick (in other words, any amount of lumber equal to 144 cubic inches). A board foot is a measure used to give an idea of how much lumber is needed for a given project (this number is often used as the basis of a cost estimation for the job). The measure of a board foot wouldn't be very useful if it only measured boards that had the dimensions 1x12x12. The vast majority of jobs don't use any lumber at all with those particular dimensions. So the measure must be converted into various equivalents.
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