For the subcontractor quantity check at the police evidence-processing room, the patio paving area for paver units is 1785 SF, with 12% attic stock and waste. A carton covers 18 SF. How many cartons should be ordered?
Correct Answer
C) 112 cartons
Carton quantity equals adjusted floor or ceiling area divided by carton coverage, rounded up.
Why This Is the Correct Answer
Carton quantity equals adjusted floor or ceiling area divided by carton coverage, rounded up.
Why the Other Options Are Wrong
Option A: 99 cartons
99 cartons is below the supported result for paver units; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 116 cartons
116 cartons is above the supported result for paver units; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 110 cartons
110 cartons is below the supported result for paver units; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Measure to carton, adjust for adjusted, then let Finishes Estimator set the finish line.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Unit paving; carton coverage and waste; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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