Southwark Metal TD_26X8X36 Trunk Duct 26x8x36 Galvanized

Product Description

The SOUTHWARK METAL TD_26X8X36 is a rectangular sheet metal trunk duct section built for forced-air HVAC distribution systems in residential and light commercial construction. Fabricated from hot dip galvanized steel, this duct section measures 26 inches wide by 8 inches tall by 36 inches long and features a button snap-lock seam with S-cleat and drive connection ends for fast, secure field assembly. Cross-breaking is applied to the flat panels to add rigidity and reduce oil-canning under system pressure. HVAC sheet metal mechanics and duct installers work with this product during new construction and retrofit duct system installations.

This trunk duct section is suited for main supply trunk runs and return air plenums in low-pressure forced-air systems. The 26 x 8 inch profile accommodates high-volume airflow paths typical of residential main trunks serving multiple branch takeoffs. The S-cleat and drive connection ends allow straightforward inline coupling to adjacent duct sections or fittings without additional hardware. This section is manufactured to meet ACCA and SMACNA standards, making it appropriate for projects where code-compliant ductwork documentation is required.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in attic, crawlspace, and basement environments
• Button snap-lock longitudinal seam for fast, rigid assembly without additional fasteners on the seam
• S-cleat and drive connection ends for inline coupling to matching duct sections and fittings
• Cross-broken flat panels add structural rigidity and reduce vibration under airflow pressure
• Manufactured to ACCA and SMACNA applicable standards
• 36-inch section length reduces the total number of joints in long trunk runs

Compatibility

Designed as a standard rectangular trunk duct section compatible with S-cleat and drive connection fittings and transitions following SMACNA rectangular duct construction standards for low-pressure forced-air HVAC systems.

Installation Notes

Installation is performed by licensed HVAC mechanics or sheet metal workers following SMACNA duct construction standards and local mechanical code requirements. Power down the air handling unit before connecting or modifying any duct section. Use proper S-cleat and drive clips to secure all end connections, and seal longitudinal seams and end joints with listed duct sealant or UL 181-rated tape as required by code. Support the duct at intervals per SMACNA hanger and support guidelines to prevent sagging.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Width (Size A): 26 inches
• Height (Size B): 8 inches
• Length: 36 inches
• Seam Type: Button Snap-Lock
• End Connection: S-Cleat and Drive Connection
• Panel Reinforcement: Cross Broken
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: TD_26X8X36