While preparing the material-order review for the urgent-care ambulance canopy, the #3 stirrup stock takeoff has 57 bars at 32 ft each. Using 0.376 lb per ft for stirrup fabrication, what reinforcing weight is estimated?
Correct Answer
B) 686 lb
Reinforcing weight equals bar count times length times pounds per foot.
Why This Is the Correct Answer
Reinforcing weight equals bar count times length times pounds per foot.
Why the Other Options Are Wrong
Option A: 1,824 lb
1,824 lb is above the supported result for #3 stirrup stock; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option C: 21 lb
21 lb is below the supported result for #3 stirrup stock; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 768 lb
768 lb is above the supported result for #3 stirrup stock; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Concrete Estimator takeoff: count the condition before counting the package.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Reinforcing steel; stirrup stock weight; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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