A roofing estimate shows 2,850 square feet of roof area. How many roofing squares is that?
Correct Answer
C) 28.5 squares.
One roofing square equals 100 square feet, so 2,850 square feet equals 28.5 squares.
Why This Is the Correct Answer
One roofing square equals 100 square feet, so 2,850 square feet equals 28.5 squares.
Why the Other Options Are Wrong
Option A: 2.85 squares.
2.85 squares. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 18.5 squares.
18.5 squares. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 285 squares.
285 squares. is above the supported result for roofing quantity calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to square, adjust for feet, then let Checking Reroof set the finish line.
Reference Hint
Study anchor (closed-book): memorize Roofing quantity calculation from 2025 California Building Code, California Code of Regulations Title 24 / Title 24 California Building Code roof coverings; roofing measurement practice; know the rule or calculation trigger without relying on exam-room lookup.
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