Standard Steel Gauge Size

	Thickness
Gauge	in	mm
3	0.2391	6.073
4	0.2242	5.695
5	0.2092	5.314
6	0.1943	4.935
7	0.1793	4.554
8	0.1644	4.176
9	0.1495	3.797
10	0.1345	3.416
11	0.1196	3.038
12	0.1046	2.657
13	0.0897	2.278
14	0.0747	1.897
15	0.0673	1.709
16	0.0598	1.519
17	0.0538	1.367
18	0.0478	1.214
19	0.0418	1.062
20	0.0359	0.912
21	0.0329	0.836
22	0.0299	0.759
23	0.0269	0.683
24	0.0239	0.607
25	0.0209	0.531
26	0.0179	0.455
27	0.0164	0.417
28	0.0149	0.378
29	0.0135	0.343
30	0.0120	0.305
31	0.0105	0.267
32	0.0097	0.246
33	0.0090	0.229
34	0.0082	0.208
35	0.0075	0.191
36	0.0067	0.170
37	0.0064	0.163
38	0.0060	0.152

Standard Sheet metal
​Gauge Thicknesses

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• Standard Steel Gauge Thickness
• Galvanized Steel Gauge Thickness
• Stainless Steel Gauge Thickness
• Aluminum Gauge Thickness
• Zinc Gauge Thickness
• Birmingham Gauge Thickness