A 10-foot by 12-foot deck area is framed with decking that costs $4.80 per square foot. What is the decking material cost before waste?
Correct Answer
C) $576.
The deck area is 120 square feet, and 120 x $4.80 = $576.
Why This Is the Correct Answer
The deck area is 120 square feet, and 120 x $4.80 = $576.
Why the Other Options Are Wrong
Option A: $480.
$480. is below the supported result for decking cost calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: $540.
$540. is below the supported result for decking cost calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option D: $640.
$640. is above the supported result for decking cost calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Decking Cost cart for Checking Deck: deck first, area second, whole units last.
Reference Hint
Study anchor (closed-book): memorize Decking cost calculation from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code deck material quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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