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

Get to Know FlexFit

  • Max Size: 4′ × 8′
  • Lead Time: 4 weeks (stock finishes)
  • Installation: Trim to floor height and anchored
  • Ordering Options: Bulk stocking available for fast turnaround
  • Hardware Preps: Butt Hinges and 4-7/8″ Strikes
  • Ships: Knock-down or fully assembled
  • Door Gasket Options: Gray and Black Vinyl or Mohair
  • Finish Options: Clear Anodized, Black Anodized, Custom Anodized, or Painted (Custom Colors Available)
    • Request a Quote

    • Key Features

    • Field-Adjustable Design: Easily adapts to wall thicknesses from 4″ to 7.5″ with adjustable throat depths.
    • Fast Installation: Ships assembled or knock-down with a complete anchor pack; requires only standard tools.
    • Durable Aluminum Construction: Will not rust, rot, or deteriorate — and never needs repainting.
    • Architectural Casing Option: Available in 1.35″ and 2.25″ trim widths to cover wall imperfections and ensure a clean finish.
    • Replace Only What’s Needed: If damage occurs, simply replace a single part — not the entire frame.
    • No Exposed Fasteners: Snap-on stop trim ensures a crisp, architectural appearance.
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    Perfect For a Variety of Applications

    FlexFit installs fast, looks sharp, and performs flawlessly in any rough opening, in any environment —whether replacing hollow metal frames or finishing new construction.

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

    Choose a Door to Complete Your System

    • In stock wood doors.
      In stock wood doors
    • Reduced-Height Stall Doors
    • Custom door options.
      Custom door options

    Why Choose FlexFit?

    With its adjustable aluminum throat, FlexFit brings efficiency and adaptability to commercial door installation. It’s the perfect solution for fast-paced environments and retrofit applications where wall variations and time constraints are common. Our FlexFit Field-Adjustable Interior Door Frame will transform your space with ease — contact us today for more information or to place an order.

    About Special-Lite

    Special-Lite builds complete door and framing solutions engineered for performance, aesthetics, and longevity. Our products—aluminum frames and doors—are trusted by national accounts across North America for their quality, durability, and ease of installation.

    Kick-Off Your Project!
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