A hip roof plane is 30 feet by 16 feet. How many square feet of sheathing does that rectangular plane require before waste?
Correct Answer
A) 480 square feet.
The rectangular area is 30 feet times 16 feet, which equals 480 square feet.
Why This Is the Correct Answer
The rectangular area is 30 feet times 16 feet, which equals 480 square feet.
Why the Other Options Are Wrong
Option B: 460 square feet.
460 square feet. is below the supported result for roof sheathing quantity; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 520 square feet.
520 square feet. is above the supported result for roof sheathing quantity; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 600 square feet.
600 square feet. is above the supported result for roof sheathing quantity; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to rectangular, adjust for area, then let Estimating Framing set the finish line.
Reference Hint
Study anchor (closed-book): memorize Roof sheathing quantity from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code roof sheathing quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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