Southwark Metal 51F_6X14X8 Straight Sheet Metal Boot Flange

Product Description

The SOUTHWARK METAL 51F_6X14X8 is a straight sheet metal duct boot with an integrated flange, designed for transitioning from rectangular ductwork to a round collar in forced-air HVAC distribution systems. Built from hot dip galvanized steel, this boot measures 6 inches by 14 inches at the rectangular opening and connects to an 8-inch diameter round collar. The flange provides a secure register or grille mounting surface at the ceiling plane. HVAC installers and sheet metal mechanics specify this boot for residential and light commercial air distribution rough-in work.

This boot is suited for ceiling installations where a straight transition is required between a rectangular trunk or branch duct and a round collar feeding a ceiling register or diffuser. The straight configuration keeps the airflow path direct with minimal pressure drop. It is commonly installed during new construction or duct replacement projects where the ceiling register location aligns directly below the supply branch duct. The integrated flange eliminates the need for a separate register box or added framing in most standard ceiling applications.

Key Features

• Hot dip galvanized steel construction resists corrosion in attic and crawlspace environments
• Integrated flange provides a ready mounting surface for ceiling registers or grilles
• Straight boot design minimizes turbulence and pressure loss at the transition point
• 6 inch by 14 inch rectangular opening to 8-inch round collar transition fits standard residential duct layouts
• Meets ACCA and SMACNA applicable standards for sheet metal duct fabrication and installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard rectangular supply duct branch runs terminating at an 8-inch round collar ceiling register or diffuser in residential and light commercial forced-air systems.

Installation Notes

Sheet metal duct boots of this type are installed by licensed HVAC technicians or sheet metal mechanics. Power down the air handling unit and verify the system is de-energized before beginning ductwork modifications. Seal all joints with listed duct mastic or UL 181-rated tape per SMACNA installation guidelines. Sheet metal edges are sharp — wear appropriate cut-resistant gloves during handling and installation.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Rectangular Opening (Size A): 6 inches x 14 inches
• Round Collar Diameter (Size B): 8 inches
• Boot Type: Straight
• Installation Position: Ceiling
• Inclusions: Flange
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 51F_6X14X8