Southwark Metal 91_8X12 Duct Box 8x12 in Floor Register

Product Description

The SOUTHWARK METAL 91_8X12 is a sheet metal duct box designed for floor register applications in residential and light commercial forced-air HVAC systems. Constructed from hot dip galvanized steel, this duct box provides a durable, corrosion-resistant transition point between the supply duct and the floor register opening. The box measures 8 inches by 12 inches at the collar and is 11 inches deep, giving installers the vertical depth needed to route supply air cleanly through flooring assemblies. HVAC technicians and sheet metal contractors install this component during new construction and retrofit projects.

This duct box is used in floor register installations where a rigid sheet metal boot is required to connect supply ductwork to a floor-mounted grille or register. Its 8 inch by 12 inch opening matches standard register sizes, making it a straightforward fit in typical residential floor layouts. The hot dip galvanized steel construction holds up in the crawl space and sub-floor environments common in floor-supply systems. It meets ACCA and SMACNA standards, which are widely referenced in residential and commercial sheet metal duct installation work.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in sub-floor and crawl space environments
• 8 inch by 12 inch opening matches standard floor register sizes
• 11 inches deep for adequate vertical clearance in flooring assemblies
• Meets ACCA and SMACNA applicable standards for sheet metal duct fabrication
• Floor register type for supply air distribution through flooring systems

Compatibility

Designed as an OEM-style sheet metal duct box for floor register applications in residential and light commercial forced-air supply duct systems requiring an 8 inch by 12 inch boot.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal contractors. Shut down the air handling system and lock out power before cutting into existing ductwork or flooring. Follow SMACNA duct construction standards and local mechanical codes for fastening, sealing, and support requirements. Use appropriate duct sealant or mastic on all joints to prevent air leakage after installation.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Size A: 8 inches x 12 inches
• Size B: 8 inches x 12 inches
• Depth: 11 inches
• Type: Floor Register
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 91_8X12