Heavy and Medium Duty Impact Traffic Door
Proline™ 300 & 400 Doors are available in both solid core and insulated models. They 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. Surface coverings available in full height high pressure laminates, ABS impact resistant plastic, FRP, stainless steel, galvanized steel or aluminum.
Unit of Measure


Internal Reinforcement

N/A Integrated tubular steel reinforcement from the hinge to the frame assures extra strength and durability

Door Panel

N/A The doors are available insulated or non-insulated with a wood core. The core of the insulated doors are 1-1/2" thick with a combination of wood and foam and are considered heavy-duty. The non-insulated wood core doors are constructed with durable 3/4" th

Steel Spine

N/A 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.


N/A Full perimeter repleceable bulb gaskets are built into the ProLoc™ edge to stand up to heavy traffic while providing a positive seal for thermal separation. Partially gasketed doors are optional.


Patented ProLoc™ Edge System

N/A Chemically bonds to the face sheets providing a positive seal and preventing moisture or contaminates from entering the door panel. Patented-ProLoc-Edge-System.JPG


N/A Patented V-Cam hinging system has a 250º in each direction, wide enough to allow the entire door and bumper to completely clear the opening. Hinge.JPG

Windows & Frames

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



  • Industrial
  • Institutional
  • Postal
  • Restaurant
  • Retail
  • Supermarket
  • Warehouse



  • Cooler
  • USDA Accepted
  • Personnel
  • Interior
  • Loading Dock



  • Lower Hinge Guards
  • Window options
  • Impact/Kick Plates
  • Teardrop Bumpers
  • Cart Guards