Sheet Metal Gauge Thickness Chart

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Sheet Metal gauge thickness chart represents standard sheet metal thickness in decimal places (mm/inch) against gauge number. Different material with same gauge number has different sheet thickness in mm. Higher the gauge number, lower will be the sheet thickness. For example 16 gauge CRCA sheet metal measures 1.5 mm thickness. Whereas 16 gauge aluminum sheet metal measures 1.3 mm. This article will help in conversion of sheet gauge number in mm or inch.

Sheet Metal gauge are not standardized. Several gauge systems are used. Therefore it is recommended to ask manufacturer sheet metal gauge number and in mm/inch while ordering material sheets. Read this article to know in detail about various sheet metal materials.

Sheet Metal Gauge Chart

Gauge
Number
CRCA Aluminum Galvanized Steel Stainless Steel
Sheet Thickness in mm
3 6.07 5.83
4 5.69 5.19
5 5.31 4.62 5.55
6 4.94 4.11 5.16
7 4.55 3.67 4.76
8 4.18 3.26 4.27 4.19
9 3.8 2.9 3.89 3.97
10 3.4 2.59 3.51 3.57
11 3 2.23 3.13 3.18
12 2.66 2.05 2.75 2.78
13 2.28 1.83 2.37 2.38
14 1.9 1.63 2 2
15 1.7 1.45 1.8 1.79
16 1.5 1.29 1.61 1.6
17 1.37 1.15 1.46 1.43
18 1.2 1.02 1.31 1.27
19 1.1 0.91 1.16 1.1
20 0.9 0.81 1 0.95
21 0.84 0.72 o.93 0.87
22 0.76 0.64 o.85 0.79
23 0.68 0.57 o.78 0.7
24 0.6 0.51 o.7 0.6
25 0.53 0.45 o.63 0.56
26 0.45 0.4 o.55 0.47
27 0.4 0.36 o.8 0.44
28 0.38 0.32 o.47 0.4
29 0.34 0.29 o.44 0.36
30 0.3 0.25 0.32
31 0.27 0.23 36 28
32 0.25 0.2 0.34 0.26
33 0.23 0.18 0.24
34 0.21 0.16 0.22
35 0.19 0.14 0.2
36 0.17 0.18

Conclusion

To sum up, Sheet metal gauge thickness chart is used to convert gauge number into sheet thickness in mm or inch. It helps designers in sheet metal product design because designers design parts in mm/inch. Whereas manufacturer provides sheet metal materials in gauges.

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