Southwark Metal TD_16X8X48 Trunk Duct 16x8x48 Galvanized

Product Description

The SOUTHWARK METAL TD_16X8X48 is a rectangular sheet metal trunk duct section designed for forced-air HVAC distribution systems. Fabricated from hot dip galvanized steel, this duct measures 16 inches by 8 inches in cross-section and 48 inches in length. It features a button snap-lock seam with S-cleat and drive connection ends, allowing fast, secure field assembly without sealant gaps. Cross-breaking on the panels adds rigidity and reduces drumming under airflow pressure. This is a high-volume residential and light commercial duct component installed by licensed HVAC technicians and sheet metal workers on new construction and retrofit trunk-and-branch systems.

This trunk duct section is suited for main supply trunk runs and large branch transitions in residential and light commercial forced-air systems. The 16 x 8 inch profile accommodates significant airflow capacity in low-clearance applications such as basement ceiling, crawlspace, or attic installations. The S-cleat and drive connection configuration is the standard fitting method for rectangular galvanized ductwork across both new-build and replacement projects, making this section straightforwardly compatible with existing rectangular duct runs of the same cross-sectional dimension.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in conditioned and unconditioned spaces
• Button snap-lock seam with S-cleat and drive connection ends for secure, tool-minimal field assembly
• Cross-broken panel faces for added rigidity and reduced airflow drumming
• 16 x 8 inch cross-section supports high-volume trunk or large branch duct runs
• 48-inch section length reduces the number of joints on long straight runs
• Meets ACCA and SMACNA applicable standards for residential and commercial duct fabrication

Compatibility

Designed as a standard OEM-style rectangular galvanized trunk duct section compatible with 16 x 8 inch rectangular duct systems using S-cleat and drive connection fittings per SMACNA construction standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or journeyman sheet metal worker in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handling unit and shut off the system at the disconnect before cutting into or joining existing ductwork. S-cleat and drive connections should be sealed with listed duct sealant or UL 181-rated tape per applicable code after mechanical assembly. Support hangers and spacing must comply with SMACNA hanger and support requirements for the duct size and system static pressure class.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Width (Size A): 16 inches
• Height (Size B): 8 inches
• Length: 48 inches
• Connection Type: Button Snap-Lock with S-Cleat and Drive Connection
• Panel Reinforcement: Cross Broken
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: TD_16X8X48