Rolling Steel Door

Orange rolling steel door at garage
  • Orange rolling steel door at garage
  • Grey rolling steel door
  • Silver rolling steel door in parking lot
  • Interior view of a grey rolling steel door

Rolling steel doors are designed to meet the tough requirements of virtually any industrial application. Doors are available in choices of galvanized or prime steel, stainless steel, or aluminum.

Color options range from our standard factory finish colors to a full range of powder coat choices.

Popular in both interior and exterior applications, a rolling steel door features a galvanized, pre-painted curtain of minimum 22-gauge steel and a standard windload rating of 20 PSF.

Materials & Construction

Rolling steel doors are composed of non-insulated or Insulated curved or flat-faced slats that provide a natural water-shed, helping to reduce corrosion. The slats are designed with free-acting interlocking joints that permit easy articulation when the door coils.

A strong double-angle bottom bar reinforces the lower edge of the curtain against wind pressure and permits varied lock, astragal, and safety edge options. This bottom bar is designed for easy installation and does not require fasteners protruding into the guide openings, so the bottom bar does not interfere with door operation.

Counterbalance assembly consists of a spring barrel which serves as a load-carrying beam. It encases the counterbalance mechanism and provides the axis around which the curtain Oil-tempered, torsion-type counterbalance springs are Oil-tempered, torsion-type counterbalance springs are wound from heat-treated steel, providing accuracy in balancing the door. Barrel plugs connect ends of springs to barrel and tension rod. Tension rod of steel shafting holds fixed ends of springs and carries torsion load of spring counterbalance.

The hood covers the curtain coil and counterbalance mechanism. Slat hoods are available in standard factory finish colors to a full range of powder coat choices.