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Conversion Charts & Tables

If you need to figure out any conversions or equivalents, check out our Conversion Charts & Tables.

Conversion Charts & Tables

Square Steel Tubing

ASTM A-500, A-513 & A-36

  • 3/8 x 3/8" to 2 x 2"
  • 2-1/8 x 2-1/8" to 5 x 5"
  • 6 x 6" to 16 x 16"
O.D. Wall Wt./Ft.
3/8 x 3/8" .035 .162
.049 .217
.065 .274
O.D. Wall Wt./Ft.
1/2 x 1/2" .035 .221
.049 .301
.065 .384
O.D. Wall Wt./Ft.
5/8 x 5/8" .035 .281
.049 .384
.065 .495
O.D. Wall Wt./Ft.
3/4 x 3/4" .035 .340
.049 .467
.065 .605
.083 .753
.109 .950
.120 1.028
O.D. Wall Wt./Ft.
13/16 x 13/16" .049 .510
.065 .688
O.D. Wall Wt./Ft.
.843 x .843" .049 .529
.065 .688
O.D. Wall Wt./Ft.
7/8 x 7/8" .035 .400
.049 .550
.065 .716
.083 .894
O.D. Wall Wt./Ft.
1 x 1" .035 .459
.049 .634
.065 .827
.072 .909
.083 1.035
.095 1.169
.109 1.320
.120 1.436
.134 1.578
.188 1.768
O.D. Wall Wt./Ft.
1-1/8 x 1-1/8" .035 .519
.049 .717
.065 .937
.083 1.176
.109 1.506
.120 1.640
O.D. Wall Wt./Ft.
1-1/4 x 1-1/4" .035 .578
.049 .800
.065 1.047
.072 1.182
.083 1.317
.095 1.492
.109 1.691
.120 1.844
.134 1.889
.188 2.408
O.D. Wall Wt./Ft.
1-3/8 x 1-3/8" .049 .884
.065 1.158
O.D. Wall Wt./Ft.
1-1/2 x 1-1/2" .035 .697
.049 .967
.065 1.268
.072 1.434
.083 1.599
.095 1.815
.109 2.062
.120 2.252
.134 2.489
.188 3.355
.250 3.706
O.D. Wall Wt./Ft.
1-3/4 x 1-3/4" .035 .816
.049 1.134
.065 1.490
.083 1.882
.095 2.138
.109 2.432
.120 2.660
.134 2.945
.188 3.687
O.D. Wall Wt./Ft.
1-7/8 x 1-7/8" .065 1.600
.083 2.023
O.D. Wall Wt./Ft.
2 x 2" .035 .935
.049 1.300
.065 1.710
.083 2.164
.095 2.461
.109 2.802
.120 3.050
.134 3.397
.188 4.320
.250 5.410
.313 7.181

Top ↑

O.D. Wall Wt./Ft.
2-1/8 x 2-1/8" .109 2.990
.120 3.270
.134 3.629
O.D. Wall Wt./Ft.
2.170 x 2.170" .109 3.055
.120 3.346
.134 3.710
O.D. Wall Wt./Ft.
2-1/4 x 2-1/4" .065 1.932
.083 2.446
.095 2.785
.109 3.174
.120 3.476
.188 5.272
.250 6.800
O.D. Wall Wt./Ft.
2-1/2 x 2-1/2" .065 2.152
.083 2.728
.095 3.107
.109 3.544
.120 3.900
.134 4.309
.188 5.590
.250 7.110
.313 8.438
O.D. Wall Wt./Ft.
3 x 3" .065 2.594
.083 3.292
.095 3.753
.109 4.286
.120 4.750
.134 5.219
.188 6.870
.250 8.810
.313 10.580
.375 12.165
O.D. Wall Wt./Ft.
3-1/2 x 3-1/2" .120 5.610
.188 8.150
.250 10.510
.313 12.700
.375 14.717
O.D. Wall Wt./Ft.
4 x 4" .083 4.422
.109 5.768
.120 6.460
.134 7.045
.188 9.420
.250 12.210
.313 14.830
.375 17.270
.500 21.630
O.D. Wall Wt./Ft.
4-1/2 x 4-1/2" .188 10.700
.250 13.910
O.D. Wall Wt./Ft.
5 x 5" .120 7.964
.188 11.970
.250 15.620
.313 19.080
.375 22.370
.500 28.430
O.D. Wall Wt./Ft.
6 x 6" .188 14.530
.250 19.020
.313 23.340
.375 27.480
.500 35.240
O.D. Wall Wt./Ft.
7 x 7" .188 17.080
.250 22.420
.313 27.590
.375 32.580
.500 42.050
O.D. Wall Wt./Ft.
8 x 8" .188 19.630
.250 25.820
.313 31.840
.375 37.690
.500 48.850
O.D. Wall Wt./Ft.
10 x 10" .188 24.730
.250 32.630
.313 40.350
.375 47.900
.500 62.460
O.D. Wall Wt./Ft.
12 x 12" .250 39.430
.313 48.860
.375 58.100
.500 76.070
O.D. Wall Wt./Ft.
14 x 14" .313 57.360
.375 68.310
.500 89.680
O.D. Wall Wt./Ft.
16 x 16" .313 65.870
.375 78.520
.500 103.300