Southwark Metal TD_16X12X48 Sheet Metal Trunk Duct

Product Description

The SOUTHWARK METAL TD_16X12X48 is a hot-dip galvanized steel sheet metal trunk duct section measuring 16 inches by 12 inches by 48 inches. It is used to form the main supply or return trunk line in forced-air HVAC systems. The duct features a button snap-lock seam with S-cleat and drive connection ends for fast, secure field assembly. Cross-breaking on the panels adds rigidity and reduces drumming under pressure. Licensed HVAC installers and sheet metal mechanics are the primary trades that work with this product.

This trunk duct section is suited for residential and light commercial forced-air systems where rectangular galvanized ductwork is specified. It installs as a straight run section in a main trunk line, connecting to branch takeoffs, transitions, and other duct components. The 16-inch by 12-inch cross-section accommodates standard trunk sizing in single-family and small commercial applications. S-cleat and drive connections allow the section to join directly to adjacent duct pieces without additional fittings at the longitudinal joints.

Key Features

• Hot-dip galvanized steel construction resists corrosion in conditioned and unconditioned spaces
• Button snap-lock seam provides a tight longitudinal closure without additional sealant at assembly
• S-cleat and drive connection ends allow quick joining to adjacent trunk sections and fittings
• Cross-broken panels add structural rigidity and reduce sheet flexing and noise under airflow
• 48-inch section length minimizes joint count across long trunk runs
• Meets ACCA and SMACNA applicable standards for rectangular sheet metal ductwork

Compatibility

Designed as an OEM-style replacement or new-construction trunk duct section for rectangular galvanized sheet metal duct systems using standard S-cleat and drive connections.

Installation Notes

Installation of sheet metal trunk ductwork is typically performed by licensed HVAC contractors or journeyman sheet metal workers in accordance with SMACNA duct construction standards and local mechanical codes. Shut down the air handling unit and confirm the system is de-energized before modifying any connected ductwork. All longitudinal seams and transverse joints should be sealed with UL 181-listed duct sealant or approved tape per the applicable mechanical code. Support hangers and spacing must conform to SMACNA hanger and support requirements for the duct size and weight.

Technical Specifications

• Width (Size A): 16 inches
• Height (Size B): 12 inches
• Length: 48 inches
• Material: Hot-Dip Galvanized Steel
• Seam Type: Button Snap-Lock
• Connection Type: S-Cleat and Drive
• Panel Reinforcement: Cross-Broken
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: TD_16X12X48