Duct Weight Calculator
Professional HVAC duct weight estimation for rectangular, round, and flat oval ducts.
Units:
Calculation Results
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Total Duct Weight
0.00
lbs
Metal Weight
0.00 lbs
Insulation Weight
0.00 lbs
Weight per Length
0.00 lbs/ft
Surface Area
0.00 ft²
Weight Distribution
Sheet Metal Weight Reference (lbs/ft²)
| Gauge | Galvanized | Stainless | Aluminum | Black Iron |
|---|---|---|---|---|
| 16 ga | 2.500 | 2.545 | 0.864 | 2.500 |
| 18 ga | 2.000 | 2.036 | 0.691 | 2.000 |
| 20 ga | 1.500 | 1.527 | 0.518 | 1.500 |
| 22 ga | 1.250 | 1.273 | 0.432 | 1.250 |
| 24 ga | 1.000 | 1.018 | 0.346 | 1.000 |
| 26 ga | 0.750 | 0.764 | 0.259 | 0.750 |
| 28 ga | 0.625 | 0.636 | 0.216 | 0.625 |
* Values based on standard sheet metal densities. Galvanized steel includes zinc coating.
Pro Tip: For accurate structural calculations, add 10-15% to the calculated weight to account for fittings, flanges, and supports.
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Duct Weight Calculator