High security, low noise and minimal maintenance doors
The bifold counterweight door is manufactured as a twin leaf design, horizontally hinged and counterweight balanced to lift vertically into a folded position. They are suitable for commercial and industrial use including: correctional centres, courthouses, aircraft hangars, schools, sporting stadiums and underground car parks.
These doors may be used to span large openings of up to 30 metres wide. They are designed to handle any wind condition, from standard ratings up to cyclonic conditions. The doors are constructed from rectangular steel hollow section and suitably braced and trussed for minimum deflection in the open and closed position.