Gauge(or gage) is used to measure the material thickness of a sheet of metal. with a higher number referring to a thinner metal sheet.
The equivalent thicknesses differ for each gauge size standard, which was developed based on the weight of the sheet for a given material.
Gauge thickness
The Manufacturers’ Standard Gauge provides the thicknesses for aluminum sheet gauge, standard steel gauge, galvanized steel gauge, and stainless steel gauge.
The Brown and Sharpe Gauge, also known as the American Wire Gage (AWG), is used for most non-ferrous metals, such as Aluminum and Brass.
In the UK, the Birmingham Gage (BG) is used for a variety of metals and should not be confused with the Birmingham Wire Gage (BWG), which is used for wires. Lastly, a standard exists for Zinc in which a higher gauge number indicates a thicker sheet.
These units are neither standard of metric and are completely independent of those typical measurement systems. Keeping a gauge conversion chart nearby is an easy way to determine the actual thickness of a sheet of metal in inches or millimeters.
For example, a 14 gauge aluminum sheet is 0.0641 inches thick, In millimeters, it is 1.628mm. The gauge number 14 holds no relevance to the actual measurements.
16 gauge aluminum sheet is 0.0508 inches thick, In millimeters, it is 1.629m.
14 gauge 1100 h14 aluminum sheet
Note: The larger the value of Gauge, the thinner the sheet。
The chart below can be used to determine the equivalent sheet thickness, in inches or millimeters, for a gauge number from the selected gauge size standard.
| Gauge | Thickness | Weight Per Area | ||||
| Approximate thickness in decimal parts of an inch(in) | Approximate thickness in millimeters(mm) | Weight per square foot in ounces avoirdupois(oz/ft²) | Weight per square foot in pounds avoirdupois(lb/ft²) | Weight per square foot in kilograms(kg/ft²) | Weight per square meter in kilograms(kg/m²) | |
| 000000 | 0.58 | 14.732 | 130.96 | 8.185 | 3.7127 | 39.962 |
| 00000 | 0.5165 | 13.119 | 116.624 | 7.289 | 3.3062 | 35.587 |
| 0000 | 0.46 | 11.684 | 103.872 | 6.492 | 2.9447 | 31.694 |
| 000 | 0.4096 | 10.404 | 92.48 | 5.78 | 2.6218 | 28.222 |
| 00 | 0.3648 | 9.266 | 82.368 | 5.148 | 2.3351 | 25.135 |
| 0 | 0.3249 | 8.252 | 73.36 | 4.585 | 2.0797 | 22.386 |
| 1 | 0.2893 | 7.348 | 65.328 | 4.083 | 1.8520 | 19.933 |
| 2 | 0.2576 | 6.543 | 58.16 | 3.635 | 1.6488 | 17.749 |
| 3 | 0.2294 | 5.827 | 51.792 | 3.237 | 1.4683 | 15.806 |
| 4 | 0.2043 | 5.189 | 46.128 | 2.883 | 1.3077 | 14.076 |
| 5 | 0.1819 | 4.62 | 41.072 | 2.567 | 1.1644 | 12.533 |
| 6 | 0.162 | 4.115 | 36.576 | 2.286 | 1.0369 | 11.162 |
| 7 | 0.1443 | 3.665 | 32.576 | 2.036 | 0.9235 | 9.942 |
| 8 | 0.1285 | 3.264 | 29.008 | 1.813 | 0.8224 | 8.854 |
| 9 | 0.1144 | 2.906 | 25.824 | 1.614 | 0.7321 | 7.882 |
| 10 | 0.1019 | 2.588 | 23.008 | 1.438 | 0.6523 | 7.021 |
| 11 | 0.0907 | 2.304 | 20.48 | 1.28 | 0.5806 | 6.249 |
| 12 | 0.0808 | 2.052 | 18.24 | 1.14 | 0.5171 | 5.567 |
| 13 | 0.072 | 1.829 | 16.256 | 1.016 | 0.4608 | 4.961 |
| 14 | 0.0641 | 1.628 | 14.48 | 0.905 | 0.4105 | 4.417 |
| 15 | 0.0571 | 1.45 | 12.896 | 0.806 | 0.3656 | 3.934 |
| 16 | 0.0508 | 1.29 | 11.472 | 0.717 | 0.3252 | 3.5 |
| 17 | 0.0453 | 1.151 | 10.224 | 0.639 | 0.2898 | 3.121 |
| 18 | 0.0403 | 1.024 | 9.104 | 0.569 | 0.2581 | 2.777 |
| 19 | 0.0359 | 0.912 | 8.112 | 0.507 | 0.2300 | 2.474 |
| 20 | 0.032 | 0.813 | 7.232 | 0.452 | 0.2050 | 2.205 |
| 21 | 0.0285 | 0.724 | 6.432 | 0.402 | 0.1823 | 1.964 |
| 22 | 0.0253 | 0.643 | 5.712 | 0.357 | 0.1619 | 1.743 |
| 23 | 0.0226 | 0.574 | 5.104 | 0.319 | 0.1447 | 1.557 |
| 24 | 0.0201 | 0.511 | 4.544 | 0.284 | 0.1288 | 1.385 |
| 25 | 0.0179 | 0.455 | 4.048 | 0.253 | 0.1148 | 1.233 |
| 26 | 0.0159 | 0.404 | 3.584 | 0.224 | 0.1016 | 1.096 |
| 27 | 0.0142 | 0.361 | 3.2 | 0.2 | 0.0907 | 0.978 |
| 28 | 0.0126 | 0.32 | 2.848 | 0.178 | 0.0807 | 0.868 |
| 29 | 0.0113 | 0.287 | 2.544 | 0.159 | 0.0721 | 0.779 |
| 30 | 0.01 | 0.254 | 2.256 | 0.141 | 0.0640 | 0.689 |
| 31 | 0.0089 | 0.226 | 2.016 | 0.126 | 0.0572 | 0.613 |
| 32 | 0.008 | 0.203 | 1.808 | 0.113 | 0.0513 | 0.551 |
| 33 | 0.0071 | 0.18 | 1.6 | 0.1 | 0.0454 | 0.489 |
| 34 | 0.0063 | 0.16 | 1.424 | 0.089 | 0.0404 | 0.434 |
| 35 | 0.0056 | 0.142 | 1.264 | 0.079 | 0.0358 | 0.386 |
| 36 | 0.005 | 0.127 | 1.136 | 0.071 | 0.0322 | 0.345 |
| 37 | 0.0045 | 0.114 | 1.024 | 0.064 | 0.0290 | 0.31 |
| 38 | 0.004 | 0.102 | 0.896 | 0.056 | 0.0254 | 0.276 |
| 39 | 0.0035 | 0.089 | 0.784 | 0.049 | 0.0222 | 0.241 |
| 40 | 0.0031 | 0.079 | 0.704 | 0.044 | 0.0200 | 0.214 |
The datasheet chart accurately lists the corresponding thickness of various gauge aluminum sheets, expressed in inch and millimeters units, and lists the weight per square foot and per square meter, the units used are ounces, foot, kg.
Tigers aluminum not only provides aluminum sheets with gauge thickness in the above table, but the length and width can also be customized as needed.
gauges measurement tool
gauges measurement tool
Now for more accurate thickness measurement, we also use a micrometer.
4ft x 8ft aluminum sheet(1220mm × 2440mm)
5ft x 10ft aluminum sheet(1524mm × 3048mm)
If you have any questions about the material thickness or plate sizes, please contact our sales team at wyc668@163.com. We will be more than happy to answer any questions and get you started on your next project.
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