Gandhi Sliding Aircraft Hangar Doors are recommended where no headroom is available and side clearances permitted. This type of door can either be bi-parting or uni-directional with each door section bottom rolling and top guided. Bottom rolling hangar doors are an excellent application for any pre-engineered or custom designed facility. They are 'bottom rolling', which means that their weight is carried by a bottom rail and not by the building structure above. These doors are designed to withstand wind load criteria and protect the indoors from all types of weather due to the advanced weather sealing system. The weather sealing system also maximizes energy efficiency. Tail Doors and integrated pedestrian doors, without threshold can be incorporated on the doors.