Sheet Metal Gauge Size Chart

GAUGE TO THICKNESS CHART

Gauge

Stainless Galvanized Sheet Steel Aluminium

Fraction

inches (mm) inches (mm) inches (mm) inches (mm)
30 0.0125 (0.33) 0.0157 (0.40) 0.0120 (0.30) 0.0100 (0.25)
29 0.0141 (0.36) 0.0172 (0.44) 0.0135 (0.34) 0.0113 (0.29)
28 1/64 0.0156 (0.41) 0.0187 (0.47) 0.0149 (0.38) 0.0126 (0.32)
27 0.0172 (0.43) 0.0202 (0.51) 0.0164 (0.42) 0.0142 (0.36)
26 0.0187 (0.48) 0.0217 (0.55) 0.0179 (0.45) 0.0159 (.40)
25 0.0219 (0.56) 0.0247 (0.63) 0.0209 (0.53) 0.0179 (0.46)
24 0.025 (0.64) 0.0276 (0.70) 0.0239 (0.61) 0.0201 (0.51)
23 0.0281 (0.71) 0.0306 (0.78) 0.0269 (0.68) 0.0226 (0.58)
22 1/32 0.0312 (0.79) 0.0336 (0.85) 0.0299 (0.76) 0.0253 (0.64)
21 0.0344 (0.86) 0.0366 (0.93) 0.0329 (0.84) 0.0285 (0.71)
20 0.0375 (0.95) 0.0396 (1.01) 0.0359 (0.91) 0.0320 (0.81)
19 0.0437 (1.1) 0.0456 (1.16) 0.0418 (1.06) 0.0359 (0.91)
18 0.0500 (1.27) 0.0516 (1.31) 0.0478 (1.21) 0.0403 (1.02)
17 0.0562 (1.4) 0.0575 (1.46) 0.0538 (1.37) 0.0453 (1.1)
16 1/16 0.0625 (1.59) 0.0635 (1.61) 0.0598 (1.52) 0.0508 (1.29)
15 0.0703 (1.8) 0.0710 (1.80) 0.0673 (1.71) 0.0571 (1.4)
14 5/64 0.0781 (1.98) 0.0785 (1.99) 0.0747 (1.90) 0.0641 (1.63)
13 3/32 0.094 (2.4) 0.0934 (2.37) 0.0897 (2.28) 0.072 (1.8)
12 7/64 0.1094 (2.78) 0.1084 (2.75) 0.1046 (2.66) 0.0808 (2.05)
11 1/8 0.1250 (3.18) 0.1233 (3.13) 0.1196 (3.04) 0.0907 (2.30)
10 9/64 0.1406 (3.57) 0.1382 (3.51) 0.1345 (3.42) 0.1019 (2.59)
9 5/32 0.1563 (3.97) 0.1532 (3.89) 0.1495 (3.80) 0.1144 (2.91)
8 11/64 0.1719 (4.37) 0.1681 (4.27) 0.1644 (4.18) 0.1285 (3.26)
7 3/16 0.1875 (4.76) 0.1793 (4.55) 0.1443 (3.67)
6 13/64 0.2031 0.1943 (4.94) 0.162 (4.1)
5 7/32 0.2187 0.2092 (5.31) 0.1819
4 15/64 0.2344 0.2242 (5.69) 0.2043
3 1/4 0.25 0.2391 (6.07) 0.2294