6-Panel Wood Grain FRP Aluminum Hybrid Door

A brown door with glass panels and a handle.

Durable & Realistic

The SL-18 Colonial FRP Aluminum Hybrid Door combines traditional styling with the advantages of modern engineering and materials to deliver a high-performance and long-life commercial door. It features a remarkable fiberglass face sheet material that offers the appearance of a traditional 6-panel wood stile and rail door, right down to the realistic oak species wood grain detail.

The Core of our Door’s Strength is its Core

The poured-in-place polyurethane core of our SL-18 door is not just a passive filler — it’s a functional component that contributes significantly to the durability of Special-Lite FRP Aluminum Hybrid Doors. After the woodgrain fiberglass door has been completely assembled, the core material is injected using our proprietary foam injection technology, ensuring a complete fill. This strong, lightweight, structural polyurethane foam bonds firmly to the rails, stiles, reinforcements, and face sheets to transform the door into a solid, completely sealed unit with incredible impact resistance and flexural strength. Our polyurethane foam won’t absorb or be damaged by water.


  • Made-to-order sizes from a minimum of 30″ x 80″ to a maximum of 48″ x 96″
  • Manufactured with stiles and rails of extruded 6063-T6 aluminum alloy, sized and configured for maximum strength without unnecessary, non-functional bulk.
  • Stiles and rails are joined with mitered corners and angle blocks secured by 3/8″ (9.5mm) diameter full-width galvanized steel tie rods.
  • Face sheets are .120″ (3mm) thick for durability and never warp, split, peel, or rot.
  • Face sheets are secured on all four sides by full-length integral reglets on the edges of the stiles and rails to eliminate troublesome screw-applied capping and form a truly flush door.
  • Poured-in-place polyurethane core ensures impact resistance, flexural strength, and thermal insulation. In addition, it won’t absorb or be damaged by water.
  • Choose from a variety of vision lite options, with or without muntins, to satisfy any architectural requirement.
  • Achieve the rich look of real stained wood with our selection of natural wood stain colors.
Building Applications

The SL-18 features a realistic woodgrain fiberglass door appearance without the disadvantages of a real wood door. Since the face sheets cannot rust or rot and the polyurethane foam is impervious to moisture or water, our SL-18 doors provide years of long service in environments that cause other doors to deteriorate quickly. Ideal for educational, municipal, restaurant, retail, and religious buildings.


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