While preparing the field-takeoff reconciliation for the school media-center infill, the #7 pier cage bars takeoff has 105 bars at 12 ft each. Using 2.044 lb per ft for vertical cage bars, what reinforcing weight is estimated?
Correct Answer
C) 2,575 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: 1,260 lb
1,260 lb is below the supported result for #7 pier cage bars; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 215 lb
215 lb is below the supported result for #7 pier cage bars; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 2,884 lb
2,884 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
# Pier Cage cart for Concrete Estimator: reinforcing first, weight second, whole units last.
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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