A wall section is 24 feet long and 10 feet high. What wall sheathing area is needed before openings?
Correct Answer
A) 240 square feet.
The wall area is length times height: 24 x 10 = 240 square feet.
Why This Is the Correct Answer
The wall area is length times height: 24 x 10 = 240 square feet.
Why the Other Options Are Wrong
Option B: 220 square feet total.
220 square feet total. is below the supported result for wall sheathing area calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 260 square feet total.
260 square feet total. is above the supported result for wall sheathing area calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 300 square feet total.
300 square feet total. is above the supported result for wall sheathing area calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Wall cart for Estimating Long: area first, length second, whole feet last.
Reference Hint
Study anchor (closed-book): memorize Wall sheathing area calculation from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code wall sheathing quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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