Gauge Of Sheet Metal Used For Air Condidtioning Ductwork

Minimum thickness of metal duct material shall be as listed in table m1601 1 1 2.

Gauge of sheet metal used for air condidtioning ductwork.

Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28. Unless otherwise specified steel sheet and strip used for duct and connectors shall be g 60 coated galvanized steel of lockforming grade conforming to astm a653 and a924 standards. One end of each piece is crimped for easy fitting of consecutive joints or to sheet metal fittings and flexible duct. Galvanized sheet metal ducts from the duct shop s hvac ductwork is manufactured from high quality galvanized steel in 3 foot lengths for easy handling.

1 inch 25 4 mm 1 smacna sheet metal and air conditioning contractors national association recommended gages for circular ducts for heating and general ventilation work recommended gages for circular ducts for industrial exhaust work. Galvanized steel shall conform to astm a 653. Minimum yield strength for steel sheet and reinforcements is 30 000 psi 207 kpa. Suburban sheet metal ltd mailing address p o.

As such it needs to be effective. While sheet metal has been one of the most commonly used materials for ductwork advances have opened the door to several other types of material that are also used to create ductwork. Kennedale tx 76060 phone 817 478 0801 fax 817 483 6571 page 5 of 43 sheet metal standards duct guage and enforcing for 1 ess drive gauge of metal duct dimensions 5 joint 4 joint 2 5 joint 2 joint joint. M1601 1 1 above ground duct systems.

Above ground duct systems shall conform to the following. The thinnest acceptable sheet metal for ductwork used in a single dwelling is 28 gage or 0 013 and 0 018 inches for galvanized and aluminum respectively.