Southwark Metal TD_20X8X60 Sheet Metal Trunk Duct

Product Description

The SOUTHWARK METAL TD_20X8X60 is a rectangular sheet metal trunk duct section used in forced-air HVAC distribution systems. Fabricated from hot dip galvanized steel, it provides a rigid, corrosion-resistant airway for supply or return air applications. The section measures 20 inches by 8 inches in cross-section and 60 inches in length. It features a button snap-lock seam with S-cleat and drive connection ends, allowing field assembly without specialty tooling. Cross-breaking on the flat panels reduces oil-canning and adds structural rigidity. Licensed HVAC sheet metal mechanics and duct installers are the primary trade handling this component.

This trunk duct section is suited for residential and light commercial forced-air systems where rectangular ductwork is specified. It fits into trunk-and-branch layouts as a main supply or return trunk run, connecting to adjacent duct sections via drive and S-cleat joints. The 20 by 8 inch profile accommodates mid-range airflow volumes in typical low-pressure duct systems. It is built to ACCA and SMACNA standards, making it appropriate for installations that must meet those specifications on permitted projects.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in conditioned and unconditioned spaces
• Button snap-lock seam for secure longitudinal closure without additional fasteners
• S-cleat and drive connection ends for standard field assembly to adjacent sections
• Cross-broken flat panels reduce deflection and improve rigidity under system pressure
• Built to ACCA and SMACNA applicable standards
• 20 x 8 inch cross-section in a full 60-inch length section

Compatibility

Designed as an OEM-style rectangular trunk duct section compatible with standard S-cleat and drive connection ductwork systems built to SMACNA and ACCA specifications for low-pressure forced-air HVAC applications.

Installation Notes

Installation should be performed by a licensed sheet metal mechanic or HVAC technician in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handling unit before connecting or modifying any duct section. Secure S-cleat and drive connections fully before system startup, and seal all joints with UL 181-listed mastic or foil tape as required by local code. Do not exceed the pressure class rating for which the duct system is designed.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Width (Size A): 20 inches
• Height (Size B): 8 inches
• Length: 60 inches
• Connection Type: Button Snap-Lock with S-Cleat and Drive Connection
• Panel Treatment: Cross Broken
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: TD_20X8X60