FlexFit™ Field-Adjustable Interior Aluminum Door Frame

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A FlexFit™ Field-Adjustable Interior Aluminum Door Frame corner section in silver, displaying channels for glass or panels and mounting hardware at the base.

Fast, Flexible Installation for Real-World Conditions

The FlexFit™ Field-Adjustable Aluminum Door Frame saves time and eliminates installation challenges caused by varying wall thicknesses. Its precision-engineered aluminum design delivers the strength and long-lasting performance you expect from Special-Lite®, with the flexibility to adapt on-site.

FlexFit is the ideal choice for restaurants, convenience stores, retail establishments, healthcare facilities, and commercial offices. It installs quickly, is prefinished, and maintains a clean appearance. FlexFit delivers reliable performance in commercial and institutional environments—whether replacing hollow metal frames or finishing new construction.

Aluminum Door Frame Features & Options

Adjustable Design: Four size options that fit walls from 4″–7.5″ throat depths. Featuring 1” of adjustability for each wall depth option.

  • S: 4″–5″
  • M: 5″–6″
  • XL: 5.5″–6.5″
  • XXL: 6.5″–7.5″

Fast Installation: Ships assembled or knock-down with anchor pack; requires only standard tools.

Factory Finished: Arrives pre-finished with durable factory-applied aluminum finishes; in stock options include Clear and Black Anodized, or choose from specialty anodized, painted, or wood grain finishes.

Durable Aluminum: No rust, rot, or repainting.

Architectural Trim Options: 1.35″ and 2.25″ trim widths cover existing opening imperfections for a clean finish. Trim has mitered corners.

Hardware Preps: Factory hardware preps for butt hinges and strikes

No Exposed Anchoring Fasteners: Snap-on door stop ensures a crisp, architectural appearance.

Hardware & Accessories: Choose from standard hardware options or select your preferred hardware. Select Special-Lite as your one-source solution or opt for prep only.

Door Options

  • Wood Veneer Doors
  • Plastic Laminate (HPDL) Wood Doors
  • Aluminum Stile & Rail Doors
  • Aluminum Flush Doors
  • Hybrid FRP Doors
  • Pultruded Fiberglass Doors
  • Composite Fiberglass Doors
  • Reduced-Height Stall Doors

Commercial Building Applications

  • Restaurants
  • Retail Stores
  • Convenience Stores
  • Gas Stations
  • Truck Stops
  • Offices
  • Healthcare
  • Restrooms and Shower Rooms

Choose Special-Lite for Your Project

Ready to solve your frame installation headaches? Contact our team of experts for personalized advice, detailed product information, and prompt support to get your project started.

Kick Off Your Project
Anodized aluminum finish options. A painted finish options chart with a variety of colors. Wood expressions aluminum finish options. Three plastic laminate (HPDL) wood doors in different finishes are shown side by side within a FlexFit™ Field-Adjustable Interior Aluminum Door Frame, highlighting their color and grain variations. Three wood veneer doors in light, medium, and golden tones, each with a silver door handle and framed by the FlexFit™ Field-Adjustable Interior Aluminum Door Frame, are displayed side by side against a white background. Text above reads Three types of doors—wood-look, light-colored with a window, and beige stall door—paired with FlexFit™ Field-Adjustable Interior Aluminum Door Frame for versatile use in aluminum stile & rail, hybrid FRP, aluminum flush, fiberglass, and stall doors. Two door frames are shown side by side—one silver and one black—both upright with no doors attached, featuring the FlexFit™ Field-Adjustable Interior Aluminum Door Frame design. A closed, light wood door with a silver handle and a FlexFit™ Field-Adjustable Interior Aluminum Door Frame, set against a plain white background. Closed light wood door with a black handle and FlexFit™ Field-Adjustable Interior Aluminum Door Frame, viewed from the front against a plain white background. A FlexFit™ Field-Adjustable Interior Aluminum Door Frame in white with an L-shaped corner, showing internal channels and mounting hardware. White metal L-shaped FlexFit™ Field-Adjustable Interior Aluminum Door Frame structure with a sliding mechanism and a grooved panel attached on one side. A FlexFit™ Field-Adjustable Interior Aluminum Door Frame system is shown in a partial view, displaying the track, runners, and frame components against a white background. A hallway in a store features a FlexFit™ Field-Adjustable Interior Aluminum Door Frame on the Two brown restroom doors in a hallway, each with a sign indicating accessible restrooms for all genders, are fitted with FlexFit™ Field-Adjustable Interior Aluminum Door Frames. The floor is tiled, and the walls are beige and white. A public restroom with two stalls featuring partial wooden doors set in FlexFit™ Field-Adjustable Interior Aluminum Door Frames, beige tiled walls, a trash can, and paper towel dispensers on the right wall. Two closed doors in a hallway: one marked A clean, modern fast food restaurant interior features a counter, cash register, promotional food sign, and a restroom door equipped with a FlexFit™ Field-Adjustable Interior Aluminum Door Frame in the background. A closed wooden restroom door with a toilet sign, set in a FlexFit™ Field-Adjustable Interior Aluminum Door Frame, sits next to blue booth seating in a modern office or public space.
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