Sheet metal gauge to decimal conversion.

Fabrication

Sheet Metal Gage Thickness

Standard
Gage No.
Ferrous Thickness
(Steel)
Non-Ferrous Thickness
(Aluminum)
(in) (mm) (in) (mm)
3 0.2391 6.0731 0.2294 5.8268
4 0.2242 5.6947 0.2043 5.1892
5 0.2092 5.3137 0.1819 4.6203
6 0.1943 4.9352 0.1620 4.1148
7 0.1793 4.5542 0.1443 3.6652
8 0.1644 4.1758 0.1285 3.2639
9 0.1495 3.7973 0.1144 2.9058
10 0.1345 3.4163 0.1019 2.5883
11 0.1196 3.0378 0.0907 2.3038
12 0.1046 2.6568 0.0808 2.0523
13 0.0897 2.2784 0.0720 1.8288
14 0.0747 1.8974 0.0641 1.6281
15 0.0673 1.7094 0.0571 1.4503
16 0.0598 1.5189 0.0508 1.2903
17 0.0538 1.3665 0.0453 1.1506
18 0.0478 1.2141 0.0403 1.0236
19 0.0418 1.0617 0.0359 0.9119
20 0.0359 0.9119 0.0320 0.8128
21 0.0329 0.8357 0.0285 0.7239
22 0.0299 0.7595 0.0253 0.6426
23 0.0269 0.6833 0.0226 0.5740
24 0.0239 0.6071 0.0201 0.5105
25 0.0209 0.5309 0.0179 0.4547
26 0.0179 0.4547 0.0159 0.4039
27 0.0164 0.4166 0.0142 0.3607
28 0.0149 0.3785 0.0126 0.3200
29 0.0135 0.3429 0.0113 0.2870
30 0.0120 0.3048 0.0100 0.2540
31 0.0105 0.2667 0.0089 0.2261
32 0.0097 0.2464 0.0080 0.2032
33 0.0090 0.2286 0.0071 0.1803
34 0.0082 0.2083 0.0063 0.1600
35 0.0075 0.1905 0.0056 0.1422
36 0.0067 0.1702
37 0.0064 0.1626
38 0.0060 0.1524
Standard
Gage No.
(in) (mm) (in) (mm)
Ferrous Thickness
(Steel)
Non-Ferrous Thickness
(Aluminum)

Page author: Dawn Rorvik (rorvikd@evergreen.edu)

Take note that this is only applicable to sheet metal gauge thickness, wire gauge thickness is another article.

Sheet Metal Gauge
Sheet Metal Gauge

Chad

Riding motorcycles and wrenching since my preteen years, I have moved from motocross to street bikes. Being a teen back in those days it was tough to get me off of the bike. Now days even though I am very busy being a dad I still have my weekends and go to the track to race and on occasion will do a track day or two.

Leave a Reply

Your email address will not be published. Required fields are marked *


CAPTCHA Image
Reload Image

×

Receive An Update Twice A Month


  • Totally FREE - Just enter your email below
  • Your E-mail will be kept private and will not be spammed
  • Unsubscribe at any time.

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close