Sheet
Metal Gauges
NOTE: These are
theoretical gauge thicknesses.
Actual thickness will vary depending on
the mill it was rolled at, batch number,
etc.
Also, note that nonferrous
gauges (aluminum) are not
the same as ferrous gauges (steel &
stainless).
| Gauge |
STEEL
|
|
ALUMINUM
|
|
(inches)
|
(mm)
|
|
(inches)
|
(mm)
|
| 3 |
.2391
|
6.073
|
|
.2294
|
5.827
|
| 4 |
.2242
|
5.695
|
|
.2043
|
5.189
|
| 5 |
.2092
|
5.314
|
|
.1819
|
4.620
|
| 6 |
.1943
|
4.935
|
|
.1620
|
4.115
|
| 7 |
.1793
|
4.554
|
|
.1443
|
3.665
|
| 8 |
.1644
|
4.176
|
|
.1285
|
3.264
|
| 9 |
.1495
|
3.797
|
|
.1144
|
2.906
|
| 10 |
.1345
|
3.416
|
|
.1019
|
2.588
|
| 11 |
.1196
|
3.030
|
|
.0907
|
2.304
|
| 12 |
.1046
|
2.657
|
|
.0808
|
2.052
|
| 13 |
.0897
|
2.278
|
|
.0720
|
1.829
|
| 14 |
.0747
|
1.897
|
|
.0641
|
1.628
|
| 15 |
.0673
|
1.709
|
|
.0571
|
1.450
|
| 16 |
.0598
|
1.519
|
|
.0508
|
1.290
|
| 17 |
.0538
|
1.367
|
|
.0453
|
1.151
|
| 18 |
.0478
|
1.214
|
|
.0403
|
1.024
|
| 19 |
.0418
|
1.062
|
|
.0359
|
0.912
|
| 20 |
.0359
|
0.912
|
|
.0320
|
0.813
|
| 21 |
.0329
|
0.836
|
|
.0285
|
0.724
|
| 22 |
.0299
|
0.759
|
|
.0253
|
0.643
|
| 23 |
.0269
|
0.683
|
|
.0226
|
0.574
|
| 24 |
.0239
|
0.607
|
|
.0201
|
0.511
|
| 25 |
.0209
|
0.531
|
|
.0179
|
0.455
|
| 26 |
.0179
|
0.455
|
|
.0159
|
0.404
|
| 27 |
.0164
|
0.417
|
|
.0142
|
0.361
|
| 28 |
.0149
|
0.378
|
|
.0126
|
0.320
|
| 29 |
.0135
|
0.343
|
|
.0113
|
0.287
|
| 30 |
.0120
|
0.305
|
|
.0100
|
0.254
|
| 31 |
.0105
|
0.267
|
|
.0089
|
0.226
|
| 32 |
.0097
|
0.246
|
|
.0080
|
0.203
|
| 33 |
.0090
|
0.229
|
|
.0071
|
0.180
|
| 34 |
.0082
|
0.208
|
|
.0063
|
0.160
|
| 35 |
.0075
|
0.191
|
|
.0056
|
0.142
|
