| Standard Inch-Pound Reinforcing Bars1 |
Bar Size
Designation |
Nominal Dimensions |
Metric
Equivalent |
Area
(in2) |
Weight
(lb/ft) |
Diameter
(in) |
| #3 |
0.11 |
0.376 |
0.375 |
#10 |
| #4 |
0.20 |
0.668 |
0.500 |
#13 |
| #5 |
0.31 |
1.043 |
0.625 |
#16 |
| #6 |
0.44 |
1.502 |
0.750 |
#19 |
| #7 |
0.60 |
2.044 |
0.875 |
#22 |
| #8 |
0.79 |
2.670 |
1.000 |
#25 |
| #9 |
1.00 |
3.400 |
1.128 |
#29 |
| #10 |
1.27 |
4.303 |
1.270 |
#32 |
| #11 |
1.56 |
5.313 |
1.410 |
#36 |
| #14 |
2.25 |
7.650 |
1.693 |
#43 |
| #18 |
4.00 |
13.600 |
2.257 |
#57 |
| Standard Metric Reinforcing Bars2 |
Bar Size
Designation |
Nominal Dimensions |
Inch-Pound
Equivalent |
Area
(mm2) |
Weight
(kg/m) |
Diameter
(mm) |
| #10 |
71 |
0.560 |
9.5 |
#3 |
| #13 |
129 |
0.994 |
12.7 |
#4 |
| #16 |
199 |
1.522 |
15.9 |
#5 |
| #19 |
284 |
2.235 |
19.1 |
#6 |
| #22 |
387 |
3.042 |
22.2 |
#7 |
| #25 |
510 |
3.973 |
25.4 |
#8 |
| #29 |
645 |
5.060 |
28.7 |
#9 |
| #32 |
819 |
6.404 |
32.3 |
#10 |
| #36 |
1006 |
7.907 |
35.8 |
#11 |
| #43 |
1452 |
11.38 |
43.0 |
#14 |
| #57 |
2581 |
20.24 |
57.3 |
#18 |
1 The current A615 specification covers bar sizes #14 and #18 in Grade 60, and bar sizes #11, #14 and #18 in Grade 75.
The current A706 specification also covers bar sizes #14 and #18.
Bar sizes #9 through #18 are not included in the A996 specification.
2 The current A615M specification covers bar sizes #43 anf #57 in Grade 420, and bar sizes #36, #43, and #57 in Grade 520.
The current A706 specification also covers bar sizes #43 and #57.
Bar sizes #29 through #57 are not included in the A996M specification.
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