At the courthouse records vault, during the preconstruction estimate lock, the #4 slab dowels takeoff has 132 bars at 16 ft each. Using 0.668 lb per ft for dowel stock, what reinforcing weight is estimated?
Correct Answer
C) 1,411 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: 2,112 lb
2,112 lb is above the supported result for #4 slab dowels; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option B: 88 lb
88 lb is below the supported result for #4 slab dowels; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 1,580 lb
1,580 lb is above the supported result for #4 slab dowels; 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; bar weight estimating; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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