A beam requires 14 pieces of 2x8 lumber at 12 feet. Using nominal board feet, how many board feet are needed?
Correct Answer
A) 224 board feet.
Board feet are 2 x 8 x 12 / 12 = 16 per piece. Fourteen pieces need 224 board feet.
Why This Is the Correct Answer
Board feet are 2 x 8 x 12 / 12 = 16 per piece. Fourteen pieces need 224 board feet.
Why the Other Options Are Wrong
Option B: 196 board feet.
196 board feet. is below the supported result for board-foot calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 256 board feet.
256 board feet. is above the supported result for board-foot calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 288 board feet.
288 board feet. is above the supported result for board-foot calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Board-Foot cart for Checking Framing: controlling first, title second, whole board last.
Reference Hint
Study anchor (closed-book): memorize Board-foot calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code framing lumber quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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