Slimfold® developed the Pre-Finished Steel Bifold over 60 years ago and has become the leader in the industry.
SlimFold® doors are prefinished and are offered in five timeless designs that blend beautifully with any decor.
SlimFold® is also available in four mirror designs.
SlimFold® is constantly innovating door designs. The furnace doors are perfect for laundry, furnace, or air handler (HVAC) closet doors. These doors are side-hinged full louvered doors constructed with 25 gauge cold rolled steel or A40 galvannealed Steel. Available in standard colors of Bright White, Ivory or Prime for field painting and are easy to install.
Slimfold® offers 5 outstanding and innovative mirror door designs, from sliders to bifolds and the new single panel overlay door. There is a design to fit every decor.
All mirror panels are 1/8” (3mm) float plate glass mirror *with a laminated backing to prevent shattering (4mm on 7’0” heights and taller).
*Note:4175 has two layers of 2.5mm safety backed glass.
Installation is easy. With just a few tools and a little time, Slimfold® Bifold or Mirror Doors can transform a room from plain to beautiful. All hardware is included.
Slimfold® doors are engineered for beauty, quiet operation and long-life. They are carefully manufactured to provide years of maintenance-free use. The electrostatically-applied enamel is standard and galvanized steel is available for areas of high humidity.
SlimFold doors are available with a top-of-the-line factory prefinish. Save time and money with a strong long lasting prefinished frame. Choose from one of Dunbarton’s many standard colors or select a custom color of your choice. Mirrored Stiles and Rails are available in Bright White, Arctic Silver, Satin Silver, or Satin Chrome depending on your mirror choice.
SlimFold is finished in a state-of-the-art paint conveyor line with electrostatically applied, baked-on enamel. This ensures complete coverage of the frame with a “best in the industry” paint finish. No exposed edges of the steel or hardware cutouts compared to our competition. Dunbarton also offers an option of A40 galvannealed steel that combined with our factory paint system gives maximum rust protection.
The Dunbarton factory-applied paint finish meets or exceeds the 500-hour salt spray test per ASTM–B117-97. This is four times the requirement of hollow metal frames per SDI (Steel Door Institute) of 125 hours.
Dunbarton Painted finishes also passed a 700-hour humidity test per ASTM–D1735-87.
• STYLE DETAIL:
The Vented Closet Panel is a door panel only featuring a full louver design designed as a single-finish-sided panel with a simple ball catch.
• RECOMMENDED USAGE:
Laundry, Furnace, Water Heater or Air Handler
Inner and outer panels of 25 gauge cold-rolled steel with an alternate A40 hot-dipped coating of zinc-iron alloy (galvaneal) recommended for coastal areas with high salt content
• FINISH STANDARDS:
Meets 500 hour salt spray test (ASTM B117-97) and 700 hour humidity test (ASTM D1735-87)
Two SlimFold pivot rods and one ball catch supplied with door.
• STYLE DETAIL:
Smooth or textured finish available, no jamb required, and available in 20″, 22″, or 24″ width. All doors meet ventilation standards.
• RECOMMENDED USAGE:
Model 100: Water heater or pantry area
Model 250/325: HVAC area; meets most HVAC free area space requirements
24 gauge cold-rolled steel with an alternate hot-dipped coating of zinc-iron alloy (galvaneal) recommended for coastal areas with high salt content
Reinforced with three 3″ wide, 24 gauge cold-rolled steel stiffeners, welded to back and flanges of the panel (12 welds per stiffener)
• FLAME SPREAD:
All doors meet requirements per ASTM E84-94 as tested by Warnock Hersey.
Model 250: Flame speed index= 0; Fuel contribution index= 0, Smoke developed index= 20
Model 325: Flame speed index= 0; Fuel contribution index= 0, Smoke developed index= 15
Two hinges with six #8 wood screws, one-panel doorknob with a screw.
All HVAC/Furnace mount in finished opening with no frame required!
Note: Leather “No Fingerprint” Finish Optional on all steel bifold doors.