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U.S. Imperial Reinforcing Bar (re-bar)

Reinforcing bar - U.S. imperial dimensions

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reinforcing bar re-bar

Bar Number Weight
(lb/ft)
Nominal Diameter
(in)
Nominal Diameter
(mm)
Nominal Area
(in2)
Nominal Area
(mm2)
2b 0.17 0.25 = 1/4 6.4    
3 0.376 0.375 = 3/8 9.525 0.11 71
4 0.668 0.500 = 1/2 12.7 0.20 129
5 1.043 0.625 = 5/8 15.875 0.31 200
6 1.502 0.750 = 3/4 19.05 0.44 284
7 2.044 0.875 = 7/8 22.225 0.60 387
8 2.670 1.000 = 1 25.4 0.79 509
9 3.400 1.128 = 1 1/8 28.65 1.00 645
10 4.303 1.270 = 1 1/4 32.26 1.27 819
11 5.313 1.410 = 1 3/8 35.81 1.56 1006
14 7.650 1.693 = 1 3/4 43 2.25 1452
18 13.60 2.257 = 2 1/4 57.33 4.00 2581

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