Duct Sheet Metal Thickness

As per smacna the gauges of ducting sheet varies and depends upon the width of the duct and type of application of a particular project.

Duct sheet metal thickness.

Leaf foil very thin 0 4 mm to 6 mm sheet metal and greater than 6 mm stock plate. Corners sealed or whole joint sealed corners frame and seams longitudinal seams folded end connection with frame. Sheet metal also comes in varying degrees of thickness. 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.

Low and medium velocity duct system. 26 gauge is use for the duct size below 300 mm 12 and thickness 0 5 mm. Sheet metal standards duct guage and enforcing for 3 w. Gauge of metal duct dimensions 5 joint 4 joint 2 5 joint 2 joint joint construction reinforcing 0 12 24 24 24 24 hemmed s drive none 13 26 24 24 24 24 tdf none 27 30 22 24.

Flange insert box with gasket. Minimum thickness of metal duct material shall be as listed in table m1601 1 1 2. Sheet metal ducts and fittings with rectangular cross section similar to en 1505 1507 and din 18379 folded sheet metal ducts and fittings made of aluminium almg3 sheet thickness 1 0 mm and 1 2 mm. Sheet metal duct pipe fittings.

0 7 mm 0 8mm and 1 5 mm. Royal metal products 8 x 4 x 4 in. Here are the few gauge system as per smacna standards. Galvanized steel shall conform to astm a 653.

Kynar aluminum for metal roofing. Galvanized sheet thickness tolerance a 2 manufactures standard gage thickness uncoated steel a 3 stainless steel sheet thickness a 4 aluminum sheet thickness alloy 3003 h14 a 5 metric conversion chart a 6 duct surface area in square feet per lineal foot a 7 galvanized sheet weight a 8 approximate weight round duct in pounds per lineal foot a 10. Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28. Sheet metal gauges used in ductwork engineering toolbox resources tools and basic information for engineering and design of technical applications.

Search is the most efficient way to navigate the engineering toolbox. Above ground duct systems shall conform to the following. Sheet metal measuring tools. This measurement is for around duct smaller than 12 inches in diameter and a rectangular section no bigger than 8 inches.

Hvac systems dictate specific industry standards of thickness for various parts of the ductwork but the majority of dictates fall into the 6 mm range. To see availability for this product personlog in or get online access. M1601 1 1 above ground duct systems. 20 in x 25 in x 16 in duct square to round.