Southwark Metal 31PF_4X14 Duct Plaster Frame Boot Rails

Product Description

The SOUTHWARK METAL 31PF_4X14 is a hot-dip galvanized steel plaster frame boot rail designed for sheet metal duct termination in wall and floor register applications. Measuring 4 inches by 14 inches, this frame provides a clean, rigid border at the duct opening, holding the surrounding plaster or drywall material away from the duct boot during finishing work. It is installed by sheet metal workers and HVAC technicians during new construction or renovation projects where a finished register opening is required at the duct boot.

This plaster frame is suited for residential and light commercial HVAC duct systems where walls or ceilings are finished with plaster or similar materials. It is used at supply air boot termination points to create a defined, dimensionally stable opening for register grille installation. The 4-inch by 14-inch frame size matches standard rectangular duct boot openings of the same dimensions, making it a direct fit for common duct layout configurations built to ACCA and SMACNA standards.

Key Features

• Hot-dip galvanized steel construction provides corrosion resistance in humid duct environments
• Frame size of 4 inches by 14 inches matches standard rectangular duct boot openings
• Plaster frame design holds finish material back from the duct boot during wall or ceiling application
• Fabricated to ACCA and SMACNA applicable standards for sheet metal duct components
• Rigid steel rail construction maintains dimensional integrity during and after installation

Compatibility

Designed as an OEM-style replacement and new-construction component for standard 4-inch by 14-inch rectangular sheet metal duct boot openings in residential and light commercial HVAC systems built to ACCA and SMACNA standards.

Installation Notes

Sheet metal workers or HVAC technicians typically install plaster frame boot rails during the rough-in phase, before wall or ceiling finish materials are applied. Ensure the duct boot is securely fastened and properly positioned before attaching the frame. Follow SMACNA ductwork installation guidelines for fastening and clearance requirements. Power down the air handling system before working inside or around duct boot terminations.

Technical Specifications

• Frame Size: 4 inches x 14 inches
• Material: Hot-Dip Galvanized Steel
• Type: Plaster Frame
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 31PF_4X14