A wood-framed floor system uses 2x12 joists at 16 inches on center spanning 18 feet. The joists support a total load of 50 psf. What is the total load on each joist?
Correct Answer
A) 66.7 pounds per linear foot
Each joist supports a tributary width of 16 inches (1.33 feet). Load per linear foot = 50 psf × 1.33 feet = 66.7 pounds per linear foot.
Why This Is the Correct Answer
Each joist supports a tributary width of 16 inches (1.33 feet). Load per linear foot = 50 psf × 1.33 feet = 66.7 pounds per linear foot.
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