A stair trim run needs 17 pieces at $22 each. What material cost should be estimated?
Correct Answer
A) $374.
Seventeen pieces at $22 each equals $374.
Why This Is the Correct Answer
Seventeen pieces at $22 each equals $374.
Why the Other Options Are Wrong
Option B: $352 total.
$352 total. is below the supported result for trim cost calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: $396 total.
$396 total. is above the supported result for trim cost calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: $418 total.
$418 total. is above the supported result for trim cost calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Estimating Stair takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Trim cost calculation from CSLB B General Building Study Guide; California Building Code, Title. / CSLB B General Building Study Guide finish carpentry estimating; know the rule or calculation trigger without relying on exam-room lookup.
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