Sterling Products
Sterling Products - 2026 Product Catalog
Sterling Products by Sterling Custom Sheet Metal, Inc., the epitome of quality and craftsmanship, are meticulously crafted with unparalleled precision and unwavering attention to detail. With a team of talented artisans who combine years of experience with innovative techniques, we consistently deliver exceptional products that go beyond expectations. From customized sheet metal fabrication to intricate designs and durable industrial solutions, Sterling products have earned a reputation for excellence. Experience the difference with Sterling Products today and witness the culmination of passion, innovation, and expertise.
Sterling Products
Sterling BEST SEALED® Closed-Cell Foam HVAC Register Boxes
Introducing Sterling BEST SEALED® Closed-Cell Foam HVAC Register Boxes – the ultimate solution for optimizing your HVAC system's performance. Designed with precision and efficiency in mind, these register boxes are engineered to provide a superior seal, ensuring maximum airflow control and minimal energy loss. Crafted from high-quality materials, our closed-cell foam register boxes are built to last, providing excellent thermal insulation and reducing noise transmission. With their sleek design and unmatched functionality, Sterling BEST SEALED® Closed-Cell Foam HVAC Register Boxes are the perfect choice for enhancing the comfort and efficiency of your space. Upgrade your HVAC system today and experience the difference that Sterling BEST SEALED® Closed-Cell Foam HVAC Register Boxes can make.
KEY FEATURES
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Building code approved for Type V Construction per IAPMO UES ER-1030
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Pre-insulated and sealed – no need to wrap with fiberglass or apply mastic to box seams
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Boxes come configured with either R-6 or R-8 insulation
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Insulation is fiber-free!
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Made of zinc-coated 30GA galvanized steel
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Also available with no collars or with side mounted collars
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Patented box design has pre-punched nail holes on inner flange for easier install
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Robust construction that prevents damage in shipment or during installation process

Sterling Products
Sterling BEST SEALED® R-6 Register Box Tap
Introducing the Sterling BEST SEALED® R-6 Register Box Tap, a game-changer in HVAC systems. With unparalleled sealing capabilities, this innovative product guarantees optimal air distribution and energy efficiency. Designed to seamlessly integrate with your existing register box, the Sterling BEST SEALED® R-6 Register Box Tap ensures a tight seal, eliminating any air leaks and reducing energy waste. Experience enhanced comfort and significant savings with this top-of-the-line Sterling product. Trust in Sterling for all your HVAC needs.
- BOXES ARE AVAILABLE WITH 30 GAUGE RIVETED DAMPERS
- CUSTOM SIZES AVAILABLE UPON REQUEST
Sterling Products
Sterling BEST SEALED® R-8 Register Box Tap
Introducing the Sterling BEST SEALED® R-8 Register Box Tap, the perfect solution for optimizing your HVAC system. Crafted with precision and engineered for maximum performance, our Sterling products are designed to meet the highest standards of quality and efficiency. With its innovative design and 30 gauge riveted dampers, our register box tap ensures a secure seal, allowing for precise air control and enhanced energy savings. Trust Sterling to deliver exceptional products that guarantee comfort and reliability. Upgrade your HVAC system today and experience the difference.
- BOXES ARE AVAILABLE WITH 30 GAUGE RIVETED DAMPERS
- CUSTOM SIZES AVAILABLE UPON REQUEST
R8 REGISTER BOXES ARE MADE OF 30 GAUGE GALVANZED STEEL. THEY ARE INSULATED WITH A RIGID POLYURETHANE FOAM INSULATION THAT FLOWS INTO THE SEAMS CREATING AN AIRTIGHT SEAL.
Sterling Products
Sterling BEST SEALED® R-6 or R-8 8 Register Box with Gasket
Introducing Sterling BEST SEALED® Insulated HVAC Register Boxes – the ultimate solution for optimizing your HVAC system's performance. Designed with precision and efficiency in mind, these register boxes are engineered to provide a superior seal, ensuring maximum airflow control and minimal energy loss. Crafted from high-quality materials, our insulated register boxes are built to last, providing excellent thermal insulation and reducing noise transmission. With their sleek design and unmatched functionality, Sterling BEST SEALED® Insulated HVAC Register Boxes are the perfect choice for enhancing the comfort and efficiency of your space. Upgrade your HVAC system today and experience the difference that Sterling BEST SEALED® Insulated HVAC Register Boxes can make.
Sterling Products
Sterling Under Floor R6 and R8 Register Box
Underfloor boxes are made of 30 Gauge Galvanized Steel. They are insulated with a rigid polyurethane foam insulation that flows into the seams creating an airtight seal. Our underfloor boxes are shipped with a collar custom made to work with our foamed boxes. The collar includes instructions for proper installation.
Sterling Collar Install Instructional Video
Sterling Products
Sterling Short-Side Wide-Side Under Floor (UF) Boxes
Introducing Sterling Short-Side Wide-Side Under Floor Register Boxes, the epitome of quality and craftsmanship. These meticulously crafted boxes are engineered with unparalleled precision and attention to detail, ensuring maximum airflow control and minimal energy loss. With their robust construction, Sterling products are the perfect choice for enhancing the efficiency and comfort of your space.
- BOXES ARE AVAILABLE WITH 30 GAUGE RIVETED DAMPERS
UNDERFLOOR BOXES ARE MADE OF 30 GAUGE GALVANIZED STEEL. THEY ARE INSULATED WITH A RIGID POLYURETHANE FOAM INSULATION THAT FLOWS INTO THE SEAMS CREATING AN AIRTIGHT SEAL.
Sterling Products
Sterling Plenums
Introducing Sterling Plenums, the perfect complement to our lineup of exceptional Sterling products. Crafted with the same unwavering attention to detail and precision, our 26 gauge plenums come in a variety of sizes and styles, including return air, flanged, knuckle lock, triangle, and transition. Designed to exceed industry standards, these plenums provide optimal airflow control and are built to last. Enhance the performance and efficiency of your HVAC system with Sterling Plenums today.
OUR 26 GAUGE PLENUMS ARE AVAILABLE IN A VARIETY OF SIZES AND STYLES INCLUDING RETURN AIR, FLANGED,
KNUCKLE LOCK, TRIANGLE AND TRANSITION.
Sterling Products
Sterling Wyes
Introducing Sterling Plenums, the perfect complement to our lineup of exceptional Sterling products. Crafted with the same unwavering attention to detail and precision, our 30 gauge plenums, spot welded and sealed with UL 181 Mastic, come in a variety of sizes and styles, including return air, flanged, knuckle lock, triangle, and transition. Designed to exceed industry standards, these plenums provide optimal airflow control and are built to last. Enhance the performance and efficiency of your HVAC system with Sterling Plenums today.
- CUSTOM SIZES AVAILABLE UPON REQUEST.
Sterling Products
Sterling Drain Pans
Introducing Sterling Drain Pans, the epitome of quality and craftsmanship. Crafted with unwavering attention to detail and precise engineering, our drain pans are made of 24 gauge steel with welded corners and a galvanized nipple. The corners are coated with a rust-proof paint, ensuring durability and longevity. With custom sizes available upon request, Sterling Drain Pans are the perfect solution for efficient and reliable drainage. Upgrade your HVAC system today and experience the excellence of Sterling products.
- CUSTOM SIZES AVAILABLE UPON REQUEST.
Sterling Products
Sterling Heater Stands
Introducing Sterling Heater Stands, the perfect solution for your HVAC system. Crafted with precision and engineered for maximum performance, our Sterling products are designed to meet the highest standards of quality and efficiency. Constructed of 22 gauge steel, our heater stands are available with bases or enclosed for your convenience. Upgrade your HVAC system today with Sterling Heater Stands and experience enhanced comfort and reliability. Trust in Sterling for all your HVAC needs.
- HEATER STANDS ARE CONSTRUCTED OF 22 GAUGE STEEL. AVAILABLE WITH BASES OR ENCLOSED.
Sterling BEST SEALED®
Closed-Cell Foam HVAC Register Box:
checks ALL the Boxes!
ENERGY SAVING
Rigid PUR Insulation creates an airtight box and can be configured to provide R-6 or R-8 insulation
FIBER FREE
Elimination of fiberglass insulation from the airstream improves air quality
CODE APPROVED
Meets building code requirements for flame spread, smoke development and thermal insulation.
SAVES MONEY
Patented design reduces installation cost and saves the homeowner on energy costs.
Sterling Custom Sheet Metal, Inc., a Texas-based family owned corporation, excels in HVAC and sheet metal fabrication and manufacturing. With our steadfast commitment to quality, customer service, and innovation, we offer a wide array of top-notch ventilation and air distribution products for the HVAC industry.
TEXAS
Sterling Custom Sheet Metal
27112 FM 2978
Magnolia, TX 77354
(281) 356-2388
info@sterlingcustomsheetmetal.com
Office Hours
Mon-Fri: 7:30 AM to 3:00 PM
Sat-Sun: Closed































