An aluminum sheet metal thickness refers to the thickness of an Aluminium Sheets, a flat square (or rectangle) piece of aluminum material with a thickness of between 0.2mm and 500mm, a width of 200mm (some are even 50mm and above) and more, and a length of 16m or less.
General Information of Aluminum sheet thickness
The aluminum sheet metal thickness can be divided into four categories:

- Thin sheets (mm): 0.15-2.0
- Regular sheets (mm): 2.0-6.0
- Medium-thick sheets (mm): 6.0-25.0
- Thick sheets (mm): 25-200
- Super thick sheets (mm): 200 and above.
Theoretically all Aluminium Sheets metals can be made into the five thickness ranges above, but some are usually made into thin sheets and others thicker sheets. For example, 1000 series like 1050, 1060 and 1070 are usually thin or regular sheets, while 6061 and 7075 aluminium are usually thicker sheets.
About aluminum sheet THICKNESS TOLERANCES
width | THICKNESS TOLERANCES | |
A-type aluminum plate | B-type aluminum plate | |
<=1000mm | +-0.14 mm | +-0.15 mm |
>1000mm and <=1600mm | +-0.17 mm | +-0.18 mm |
>1600mm and <=2000mm | +-0.22 mm | +-0.23 mm |
>2000mm and <=2500mm | +-0.19 mm | +-0.19 mm |
>2500mm | +-0.19 mm | +-0.19 mm |
Aluminium Sheet Metal Gauge
A Aluminium Sheets metal gauge (sometimes spelled "gage") indicates the standard thickness of sheet metal for a specific material. As the gauge number increases, the material thickness decreases.
Thickness | Weight Per Area | |||
---|---|---|---|---|
Gauge | in | mm | lb/ft² | kg/m² |
000000 | 0.5800 | 14.732 | 8.185 | 39.962 |
00000 | 0.5165 | 13.119 | 7.289 | 35.587 |
0000 | 0.4600 | 11.684 | 6.492 | 31.694 |
000 | 0.4096 | 10.404 | 5.780 | 28.222 |
00 | 0.3648 | 9.266 | 5.148 | 25.135 |
0 | 0.3249 | 8.252 | 4.585 | 22.386 |
1 | 0.2893 | 7.348 | 4.083 | 19.933 |
2 | 0.2576 | 6.543 | 3.635 | 17.749 |
3 | 0.2294 | 5.827 | 3.237 | 15.806 |
4 | 0.2043 | 5.189 | 2.883 | 14.076 |
5 | 0.1819 | 4.620 | 2.567 | 12.533 |
6 | 0.1620 | 4.115 | 2.286 | 11.162 |
7 | 0.1443 | 3.665 | 2.036 | 9.942 |
8 | 0.1285 | 3.264 | 1.813 | 8.854 |
9 | 0.1144 | 2.906 | 1.614 | 7.882 |
10 | 0.1019 | 2.588 | 1.438 | 7.021 |
11 | 0.0907 | 2.304 | 1.280 | 6.249 |
12 | 0.0808 | 2.052 | 1.140 | 5.567 |
13 | 0.0720 | 1.829 | 1.016 | 4.961 |
14 | 0.0641 | 1.628 | 0.905 | 4.417 |
15 | 0.0571 | 1.450 | 0.806 | 3.934 |
16 | 0.0508 | 1.290 | 0.717 | 3.500 |
17 | 0.0453 | 1.151 | 0.639 | 3.121 |
18 | 0.0403 | 1.024 | 0.569 | 2.777 |
19 | 0.0359 | 0.912 | 0.507 | 2.474 |
20 | 0.0320 | 0.813 | 0.452 | 2.205 |
21 | 0.0285 | 0.724 | 0.402 | 1.964 |
22 | 0.0253 | 0.643 | 0.357 | 1.743 |
23 | 0.0226 | 0.574 | 0.319 | 1.557 |
24 | 0.0201 | 0.511 | 0.284 | 1.385 |
25 | 0.0179 | 0.455 | 0.253 | 1.233 |
26 | 0.0159 | 0.404 | 0.224 | 1.096 |
27 | 0.0142 | 0.361 | 0.200 | 0.978 |
28 | 0.0126 | 0.320 | 0.178 | 0.868 |
29 | 0.0113 | 0.287 | 0.159 | 0.779 |
30 | 0.0100 | 0.254 | 0.141 | 0.689 |
31 | 0.0089 | 0.226 | 0.126 | 0.613 |
32 | 0.0080 | 0.203 | 0.113 | 0.551 |
33 | 0.0071 | 0.180 | 0.100 | 0.489 |
34 | 0.0063 | 0.160 | 0.089 | 0.434 |
35 | 0.0056 | 0.142 | 0.079 | 0.386 |
36 | 0.0050 | 0.127 | 0.071 | 0.345 |
37 | 0.0045 | 0.114 | 0.064 | 0.310 |
38 | 0.0040 | 0.102 | 0.056 | 0.276 |
39 | 0.0035 | 0.089 | 0.049 | 0.241 |
40 | 0.0031 | 0.079 | 0.044 | 0.214 |