Duct Material Weight Calculator

Calculate sheet metal weight for rectangular and round ductwork based on dimensions and gauge.

1 for rectangular, 2 for round
Rectangular width or round diameter
inches
Height for rectangular duct, ignored for round
inches
Total duct length
feet
Common: 26 ga (1.52 lb/ft²), 24 ga (2.0 lb/ft²), 22 ga (2.5 lb/ft²)
ga

Results

Metal Weight per ft²-lb/ft²
Total Surface Area-ft²
Total Material Weight-lb
References: SMACNA HVAC Duct Construction Standards - Metal and Flexible, 3rd Ed.