Southwark Metal 1135 2X10X99 Wall Stack 2.25x10x99 in

Product Description

The SOUTHWARK METAL 1135 2X10X99 is a hot-dip galvanized steel wall stack section designed for low-profile supply air distribution in residential and light commercial HVAC systems. Wall stacks fit inside standard 2x4 and 2x6 wall cavities, delivering conditioned air from a floor-mounted plenum or trunk line up through the wall to a floor or baseboard register. At 99 inches long with a 2.25-inch by 10-inch cross-section, this piece covers a full wall run with a single section. The hot-dip galvanization provides corrosion resistance suited to unconditioned or semi-conditioned spaces such as crawl spaces and framed wall cavities. HVAC installers and sheet metal contractors specify wall stacks when duct routing through wall framing is required by the system layout.

This wall stack is used in forced-air heating and cooling systems where low-profile rectangular ductwork must run vertically inside a framed wall. Typical applications include new construction and HVAC retrofit projects in residential single-family homes and light commercial buildings. The 2.25-inch width is sized to fit within standard wall framing while the 10-inch height provides adequate cross-sectional area for supply air delivery. Installers use this product with matching boot fittings and register covers to complete the supply air termination at the wall or floor surface.

Key Features

• Hot-dip galvanized steel construction for corrosion resistance in wall cavity environments
• 99-inch length covers a full standard wall height in a single section
• 2.25-inch by 10-inch profile fits inside standard 2x4 and 2x6 wall framing
• Meets ACCA and SMACNA applicable standards for sheet metal ductwork
• Designed for use with standard boot fittings and floor or wall registers

Compatibility

Designed as an OEM-style replacement and new-installation component for residential and light commercial forced-air supply duct systems requiring low-profile wall stack sections.

Installation Notes

Wall stacks are installed by licensed HVAC technicians or sheet metal contractors following SMACNA and ACCA duct construction guidelines. Shut down the air handler and confirm the system is de-energized before cutting into existing ductwork or plenum connections. Secure all joints with appropriate sheet metal screws and seal with UL 181-listed mastic or foil tape per local mechanical code requirements. Do not compress or crimp the stack cross-section when fitting within wall framing, as deformation reduces airflow area and system performance.

Technical Specifications

• Material: Hot Dipped Galvanized Steel
• Length: 99 inches
• Width: 2.25 inches
• Height: 10 inches
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 1135 2X10X99