Southwark Metal 48-28GA_32X35 Trunk Duct Panning 28 Gauge

Product Description

The SOUTHWARK METAL 48-28GA_32X35 is a hot dip galvanized steel sheet used as trunk duct double panning material in forced-air HVAC systems. Measuring 32 inches x 35 inches and fabricated to 28 gauge thickness, this flat sheet forms the bottom pan or lining of rectangular trunk ducts. HVAC sheet metal mechanics and ductwork fabricators use this material when building or retrofitting supply and return trunk duct systems in residential and light commercial construction. The hot dip galvanized finish provides corrosion resistance suitable for conditioned-space ductwork applications. This product conforms to ACCA and SMACNA standards, making it appropriate for code-compliant duct installations.

This panning material is used in forced-air duct systems where a flat sheet is needed to close the bottom face of a joist-bay or framed trunk duct cavity. It is well-suited for residential new construction and retrofit ductwork where the structural framing itself forms three sides of the duct and the pan completes the fourth side. HVAC contractors and sheet metal fabricators typically cut and fit this material on site to match specific trunk dimensions. Applications include both supply and return trunk configurations in low-pressure residential duct systems.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in ductwork environments
• 28 gauge material thickness meets SMACNA and ACCA standards for trunk duct panning
• Sheet size of 32 inches x 35 inches allows on-site cutting and fitting to trunk dimensions
• Flat sheet format is compatible with joist-bay panning and framed trunk duct assemblies
• Conforms to ACCA and SMACNA applicable standards for code-compliant duct installations

Compatibility

Designed as a standard trunk duct panning sheet for use in residential and light commercial forced-air HVAC duct systems built to ACCA and SMACNA standards.

Installation Notes

Installation is performed by licensed HVAC contractors or qualified sheet metal mechanics. Duct systems should be installed in accordance with SMACNA duct construction standards and local mechanical codes. Sheet edges are typically sharp after cutting — use appropriate hand protection when handling and fitting this material. Ensure all duct joints and seams are sealed per local code requirements before system startup.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Material Thickness: 28 Gauge
• Sheet Size: 32 inches x 35 inches
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 48-28GA_32X35