sectional door / galvanized steel / industrial / exterior
Insul-Rite™ 5255 / 5155



  • Type:


  • Material:

    galvanized steel

  • Applications:

    industrial, exterior, for loading docks

  • Other characteristics:


  • Width:

    4'00" , 7925'00"

    Max.: 26'00" (8 m)

    Min.: 4'00" (1 m)

  • Height:

    6'00" , 6096'00"

    Max.: 20'00" (6 m)

    Min.: 6'00" (2 m)


Simple, straightforward sectional dock door design.

2" Thick insulated door for superior environmental separation (Also available in 1-1/2" Model 5155).
Two-coat, baked-on polyester finish makes surface virtually maintenance free.
Solid polyurethane core with an R-value of 14.8 provides maximum thermal efficiency.
Ideal in cold storage environments and northern climates.
Thermal break separates inner and outer skins so virtually no heat or cold is conducted through section.
Joint seal and bulb-shaped bottom seal standard to help prevent air infiltration and reduce energy costs.
Available in sizes up to 26' wide x 20' high to accommodate a wide variety of openings.
Door meets or exceeds 15.2 psf windload per ANSI/DASMA 102-1996 standards in accordance with ASTM E-330-70.
Rugged construction with a foam-in-place panel construction with galvanized steel facing for long-term durability.

"This product may not be sold in all countries. Contact your local Rite-Hite representative for availability."