Proline 300i & 400i Traffic Door

Proline 300i and 400i insulated doors are designed for strength and durability in tough, abusive applications. They provide visual separation, sound attenuation and thermal separation. The doors can be manufactured to fit virtually any size opening. The door is designed to comply with all USDA sanitation requirements.

Door Panel – The core of the insulated doors are 1-1/2" thick with a combination of wood and foam and are considered heavy-duty. Surface coverings include full height high pressure laminates, ABS impact resistant plastic, FRP, stainless steel, galvanized steel or aluminum. – Integrated tubular steel reinforcement from the hinge to the frame assures extra strength and durability.

Steel Spine – Steel spine reinforces the edge of the door against heavy impacts, standard on Proline doors over 36" wide, optional on doors under or equal to 36" wide. Recommended for heavy-duty applications.

Gasketing – Full perimeter replaceable gaskets are built into the ProLoc™ edge to stand up to heavy traffic while providing a positive seal for thermal separation. Partially gasket doors are optional.

Patented ProLoc™ Edge System – Chemically bonds to the face sheets providing a positive seal and preventing moisture or contaminates from entering the door panel.

Hinge – Patented fully composite V-Cam roller assembly resists corrosion and rust and can travel up to 120 degrees in each direction.

Window & Frames – ABS window frames are chemically bonded for a permanent seal that stands up to repeated washdowns. Single pane 1/8" thick polycarbonate window is used in the wood core doors, double pane windows are used in insulated doors.


  • Supermarket
  • Retail
  • Industrial
  • Institutional
  • Postal
  • Cold Storage
  • Food Service
  • Warehouse Distribution


  • Temperature – Cooler
  • Moisture – None
  • Fire – Non-Rated
  • Corrosion – None

Type of Traffic

Available Colors

  • Antique White

  • Beige

  • Black

  • Cadet Blue

  • Chocolate Brown

  • Cloud Gray

  • Forest Green

  • Fudge Brown

  • Gray

  • Medium Brown

  • Metallic Gray

  • Navy

  • Off White

  • Red

  • Royal Blue

  • White


  • Windows
  • Bumpers
  • Hinge Guard
  • Impact Plate
  • Cart Guards/Rub Rails

Of Note

  • NSF Tested and Certified
  • USDA Accepted