A 36-foot wall is 8 feet high and will be sheathed with 4-foot by 8-foot panels installed vertically. How many full panels cover the wall before waste?
Correct Answer
A) 9 panels.
Each vertical panel covers 4 feet of wall length, so 36 / 4 = 9 panels.
Why This Is the Correct Answer
Each vertical panel covers 4 feet of wall length, so 36 / 4 = 9 panels.
Why the Other Options Are Wrong
Option B: 8 panels.
8 panels. is below the supported result for sheathing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 10 panels.
10 panels. is above the supported result for sheathing quantity calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 12 panels.
12 panels. is above the supported result for sheathing quantity calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to vertical, adjust for panel, then let Estimating Wall set the finish line.
Reference Hint
Study anchor (closed-book): memorize Sheathing quantity calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code wood structural panel sheathing concepts; know the rule or calculation trigger without relying on exam-room lookup.
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