If you work in HVAC, sheet metal fabrication, or general construction, knowing the weight of galvanized sheet metal by gauge is critical for estimating, load calculations, and equipment sizing. This galvanized sheet metal weight chart provides you with accurate thicknesses, weights per square foot (lb/ft²), and metric equivalents (kg/m²) from 30 gauge and thicker. Whether you’re planning ductwork, flashing, or structural components, this table is a reliable reference to help you get the job done right. View the interactive chart below or download a printable PDF for quick job site access.
Galvanized Sheet Metal Weight Chart
| Gauge | Thickness (in) | Thickness (mm) | Weight (lb/ft²) | Weight (kg/m²) |
|---|---|---|---|---|
| 30 | 0.0157 | 0.3988 | 0.656 | 3.20 |
| 29 | 0.0172 | 0.4369 | 0.719 | |
| 28 | 0.0187 | 0.4750 | 0.781 | 3.81 |
| 27 | 0.0202 | 0.5131 | 0.844 | |
| 26 | 0.0217 | 0.5512 | 0.906 | 4.42 |
| 25 | 0.0247 | 0.6274 | ||
| 24 | 0.0276 | 0.7010 | 1.156 | 5.64 |
| 23 | 0.0306 | 0.7772 | ||
| 22 | 0.0336 | 0.8534 | 1.406 | 6.86 |
| 21 | 0.0336 | 0.9296 | ||
| 20 | 0.0396 | 1.0060 | 1.656 | 8.08 |
| 19 | 0.0456 | 1.1580 | ||
| 18 | 0.0516 | 1.3110 | 2.156 | 10.52 |
| 17 | 0.0575 | 1.4610 | ||
| 16 | 0.0635 | 1.6130 | 2.656 | 12.96 |
| 15 | 0.0710 | 1.8030 | ||
| 14 | 0.0785 | 1.9940 | 3.281 | 16.01 |
| 13 | 0.0934 | 2.3720 | ||
| 12 | 0.1084 | 2.7530 | 4.531 | 22.11 |
| 11 | 0.1233 | 3.1320 | ||
| 10 | 0.1382 | 3.5100 | 5.781 | 28.21 |
| 9 | 0.1532 | 3.8910 | ||
| 8 | 0.1681 | 4.2700 | 6.875 |
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Frequently Asked Questions (FAQ)
What is the weight of galvanized sheet metal per square foot?
The weight varies by gauge. For instance, 26 gauge weighs about 0.906 lb/ft². Refer to the full chart above for detailed values.
How thick is galvanized sheet metal by gauge?
Gauge numbers correspond to specific thicknesses in inches and millimeters. The higher the gauge, the thinner the sheet. For example, 20 gauge = 0.0396 inches.
Does galvanizing affect the weight?
Slightly, as the added zinc coating (e.g., G60, G90) adds minimal weight but is factored into our chart.
Can I use this chart for Aluminum or Stainless Steel
No — this chart is specific to galvanized steel, which has a different density than aluminum or stainless.
Is this chart used for HVAC estimating?
Yes! Estimators use it for ductwork weight, load calculations, and takeoffs. It’s a go-to tool in HVAC and general sheet metal trades.
