Southwark Metal USBR81958215824 Unit Support Box R-8 Insulation 19 5/8 Inches X 21 5/8 Inches X 24 Inches

Product Description

The Southwark Metal USBR81958215824 is a unit support box built with R-8 insulation and fixed dimensions of 19 5/8 inches by 21 5/8 inches by 24 inches. It is designed for use in residential and light commercial HVAC installations where a rigid, insulated platform is needed to support air handling units, fan coils, or similar equipment in attic or crawl space applications. Unit support boxes sit between the structural surface and the bottom of the air handler, elevating the unit and providing a thermally efficient base that reduces heat transfer and helps maintain system efficiency. The R-8 insulation rating on this box meets or exceeds requirements commonly called for in energy codes and equipment installation guidelines, making it a reliable choice for jobs where thermal performance matters. Southwark Metal is a recognized name in sheet metal and HVAC duct products, and this unit support box reflects the durability and precision fabrication that HVAC contractors expect on the job. The fixed, non-adjustable design means the box ships ready to install without the need for field modification, saving time during rough-in and installation. At 19 5/8 inches by 21 5/8 inches by 24 inches, it fits a wide range of standard residential air handler footprints. The insulated construction helps prevent condensation buildup on exterior surfaces, which protects both the equipment and the surrounding structure over the long term. HVAC technicians, mechanical contractors, and installation crews working on new construction or equipment replacement jobs will find this unit support box straightforward to position and secure. It is a purpose-built component that simplifies equipment staging and supports proper airflow alignment from the start of the installation.

• R-8 insulation rating for strong thermal performance and energy code compliance
• Fixed non-adjustable design ships ready to install with no field modification required
• Dimensions of 19 5/8 inches by 21 5/8 inches by 24 inches fit standard residential air handler footprints

Product Highlights

The Southwark Metal USBR81958215824 unit support box delivers R-8 insulated support for air handlers in attic and crawl space installations. Its fixed construction and precise dimensions make it a dependable, ready-to-install solution for HVAC contractors.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: USBR81958215824

Technical Specifications

• Insulation Rating: R-8
• Width: 19 5/8 inches
• Depth: 21 5/8 inches
• Height: 24 inches
• Insulated: Yes
• Adjustable: No