28 gauge steel thickness
28 gauge steel is 0.0149 in (0.38 mm) thick, per the Manufacturers' Standard Gauge. Gauge numbers are material-specific, so always confirm the decimal thickness.
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| Material | Gauge standard | Thickness (in) | Thickness (mm) | kg/m² |
|---|---|---|---|---|
| Steel (this page) | Manufacturers' Standard Gauge | 0.0149 | 0.38 | 2.97 |
| Gauge | Thickness (in) | Thickness (mm) | kg/m² | lb/ft² |
|---|---|---|---|---|
| 16 ga | 0.0598 | 1.52 | 11.92 | 2.44 |
| 18 ga | 0.0478 | 1.21 | 9.53 | 1.95 |
| 20 ga | 0.0359 | 0.91 | 7.16 | 1.47 |
| 22 ga | 0.0299 | 0.76 | 5.96 | 1.22 |
| 24 ga | 0.0239 | 0.61 | 4.77 | 0.98 |
| 26 ga | 0.0179 | 0.45 | 3.57 | 0.73 |
| 28 ga (this page) | 0.0149 | 0.38 | 2.97 | 0.61 |
Practical notes
Gauge is a convention, not a unit: a higher gauge number is thinner, and steps are not even. 28 gauge is 0.0149 in for uncoated carbon steel (cold-rolled / hot-rolled sheet). Put the decimal thickness on drawings and purchase orders to avoid mix-ups.
Mills supply sheet to a thickness tolerance (ASTM A568 / A480 / EN 10131), so a measured sheet can be a few thousandths of an inch off the nominal value. Measure with a micrometer before calculating bend allowances or press-fit clearances.
Weight per area here is thickness × density (carbon steel, 7.85 g/cm³): 0.38 mm × 7.85 = 2.97 kg/m². Multiply by the sheet area for blank weight; a 4 × 8 ft sheet is 2.973 m², so about 8.8 kg (19.5 lb).
Manufacturers' Standard Gauge is based on a steel weight of 41.82 lb/ft² per inch of thickness, which is why its decimal values look irregular.
FAQ
How thick is 28 gauge steel?
0.0149 in, which is 0.38 mm, per the Manufacturers' Standard Gauge.
How thick is 28 gauge in mm?
For steel, 28 gauge is 0.38 mm.
How much does 28 gauge steel weigh?
About 2.97 kg per square metre (0.61 lb per square foot), using carbon steel, 7.85 g/cm³.
Is 28 gauge thicker than 26 gauge?
No. Higher gauge numbers are thinner: 26 ga steel is 0.0179 in, 28 ga is 0.0149 in.
Sources: Steel: Manufacturers' Standard Gauge · Densities: EN 10025 / ASTM A1008 (steel), ASTM A240 (stainless), Aluminum Association (5052) · 1 in = 25.4 mm (exact)
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