Fourfold & Hinged Industrial Doors
Full‑width access for oversized equipment and aircraft applications
For facilities requiring maximum clear opening width without overhead obstructions, our fourfold door systems provide the solution. These engineered systems are ideal for aircraft hangars, heavy equipment facilities, and specialized industrial applications where conventional overhead doors cannot accommodate the required opening size.
Technical Specifications
Welded steel panels with structural reinforcement
Vertical piano hinges with heavy‑duty bearings
Manual or electric operation with emergency backup
Integrated vision panels & ventilation options
Custom powder‑coat finish in any RAL color
Wind load engineered per ASCE 7 requirements
Installation Complexity
Specialized rigging & installation equipment
Coordination with structural steel contractor
Field welding & structural modifications as required
Multi‑phase installation aligned with construction schedule
Primary Applications
Aircraft maintenance hangars & manufacturing facilities
Heavy equipment storage & maintenance buildings
Transit facilities for bus & rail maintenance
Specialized industrial processes requiring wide access
Project Support
Engineering–stamped drawings & calculations
Submittal prep & approval process
Construction administration & field support
Coordination with architect & structural engineer
Long-term Service
Annual inspections & maintenance programs
Structural component replacement & upgrades
Weatherseal & hardware replacement services
Emergency repair capabilities