For the buyout verification pass at the museum back-of-house corridor, the #7 pier cage bars takeoff has 30 bars at 12 ft each. Using 2.044 lb per ft for vertical cage bars, what reinforcing weight is estimated?
Correct Answer
A) 736 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 B: 360 lb
360 lb is below the supported result for #7 pier cage bars; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 61 lb
61 lb is below the supported result for #7 pier cage bars; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 824 lb
824 lb is above the supported result for #7 pier cage bars; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to reinforcing, adjust for weight, then let Concrete Estimator set the finish line.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Reinforcing steel; pier cage weight; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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