Southwark Metal 20_16X10 Trunk Duct Collar 16x10 Straight

Product Description

The SOUTHWARK METAL 20_16X10 is a straight rectangular trunk duct collar designed for use as a starting collar in sheet metal duct systems. Fabricated from hot dip galvanized steel, this fitting measures 16 inches in length by 10 inches in width and provides a secure, airtight transition point at the origin of a trunk duct run. It is installed by sheet metal workers and HVAC technicians during new construction or system retrofit work. The straight body pattern keeps airflow aligned with the trunk and simplifies layout where offsets are not required. Compliance with ACCA and SMACNA standards makes this collar appropriate for engineered duct systems where documentation and code conformance matter.

This collar is suited for residential and light commercial forced-air HVAC installations where rectangular sheet metal trunk ductwork originates from a plenum or air handler cabinet. The starting collar configuration means it seats at the upstream end of the duct run, connecting the supply plenum face to the main trunk. It is a common component in sheet metal fabrication shops and in-field duct assembly wherever SMACNA-compliant rectangular duct systems are specified.

Key Features

• Hot dip galvanized steel construction provides corrosion resistance in conditioned and unconditioned spaces
• Straight body pattern maintains trunk alignment without angular offset
• Starting collar configuration suited for originating a rectangular trunk duct run at the plenum
• 16 inch by 10 inch nominal size fits standard rectangular trunk duct dimensions
• Meets ACCA and SMACNA applicable standards for engineered sheet metal duct systems

Compatibility

Designed as an OEM-style sheet metal fitting for rectangular trunk duct systems built to ACCA and SMACNA standards in residential and light commercial forced-air HVAC applications.

Installation Notes

Installation should be performed by a qualified sheet metal worker or licensed HVAC technician. Shut down and lock out the air handling system before connecting or modifying any duct components. Secure the collar to the plenum face and trunk duct using sheet metal screws and seal all joints with UL 181-listed mastic or foil tape per local mechanical code requirements. Reference SMACNA duct construction standards for proper fastener spacing and reinforcement when integrating this collar into a larger trunk system.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Size: 16 inches Length x 10 inches Width
• Body Pattern: Straight
• Type: Starting, Rectangular
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 20_16X10