Steeliner sub-flooring is a fiberglass composite panel that is light yet strong. It is resistant to moisture and a wide variety of chemicals. It is designed not to rot, corrode or mildew. Designed for use in refrigerated trailers and truck bodies.


  • Withstands impacts, moisture, chemicals
  • Resists to extreme environmental temperatures
  • Does not corrode
  • Great tensile strength


  • Reduces vibrations
  • Prevents fractures

Sub-flooring FRP Liners

Typical application

  • Designed for use as a sub-flooring liner in refrigerated trailers and truck bodies.

Steeliner SF Physical Characteristics

Physical Characteristics

Up to 105″ Embossed .38 lbs. Sq. Ft.

Care & Maintenance


Stabilit Transportation Panels can be cut using power saws with a carbide tip or masonry blade. Use caution and always wear protective goggles and a filter mask when cutting panels.


Follow industry-wide fastening procedures utilizing mechanical and/or adhesives.


All Stabilit Transportation Panels should be stored indoors in a cool dry area. Moisture permitted to remain trapped between panels can cause expansion and discoloration.


To ensure that Stabilit Transportation Panels retain their sparkling clean looks, a periodic cleaning with warm soapy water or steam cleaning is recommended.

Technical Characteristics (Typical values)

PropertyTypical ValueTest Method
Flexural Strength 18,096 PSI ASTM D-790
Flexural Modulus 650,000 PSI ASTM D-790
Tensile Strength 9,247 PSI ASTM D-638
Tensile Modulus 1,000,000 PSI ASTM D-638
Izod Impact (Notched) 9.6 Ft. Lbs. ASTM D-256
Barcol Hardness 40 ASTM D-2583

Notes: Stabilit subpan is available in bulk coil, 250 to 700 linear feet as well as cut-to-length sheets can be interlapped into one coil for customer convenience. Material can also be coiled with embossed side facing inside or out.

Typical application


Other products of the family

Recubrimientos plásticos para exteriores

Exterior Liners

Steeliner for exterior walls is a fiberglass composite panel designed for the exterior walls of the body truck, with a special acrylic gelcoat which enables a longer protection against UV radiation and provides an excellent esthetical appearance, thereby providing years of care-free service to your vehicle.

Interior Walls and Roofs

Steeliner transportation interior wall & roof liner is a high strength fiberglass composite panel. It is tough, durable and USDA approved. Panels provide great impact and abrasion resistance, and are extremely resistant to moisture. Wall liner panels also protect against a wide range of chemicals and are rustproof and mildew resistant.

Translucent Roof

Steeliner semi translucent and translucent roofs are laminates designed to allow the light pass through the roof that provides a better sight inside the body truck (making loading and unloading operations much easier) and saving energy. Available with the Woven Roving Tissue reinforcement making the roof of the body truck scratch-resistant.

Scuff Panels

Truck Bed Panel

Embossed Truck Bed Panel are reinforced composite panels for exterior use including truck bed covers. These thermoset panels are produced using the highest quality polyester resins and U.V. inhibitors.