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US Rebar Sizes and Nominal Weights

Nominal US customary reinforcing bar weights for common bar sizes. Use actual project schedules and applicable material standards for ordering.

Bar sizeNominal diameterNominal weight
#30.375 in0.376 lb/ft
#40.500 in0.668 lb/ft
#50.625 in1.043 lb/ft
#60.750 in1.502 lb/ft
#70.875 in2.044 lb/ft
#81.000 in2.670 lb/ft

Before using these quantities in a bid

  • Weight = total installed cut length × nominal pounds per foot.
  • Allow for approved laps, bends, hooks, cutting and fabrication separately.
  • Structural drawings and rebar schedules control the actual arrangement.

Reference values are nominal or mathematical planning aids unless otherwise stated. Confirm actual product data, approved drawings, applicable requirements, jobsite conditions, and supplier information. These pages contain no live price feed and do not replace professional judgment.

Turn your reference check into a better estimate

Use the related free calculator for one-off math, or explore the professional trade estimating workflow for plan-based quantities, materials and labor.