Manually operated doors easy to use with both side visibility. The door is the main part of the building which provides safety and privacy. Different varieties of doors are available according to the material, manufacturer, etc. There are different types of doors like flush doors, sliding doors, revolving doors, collapsible doors, rolling shutter doors, etc.
The collapsible door is one which can be opened or closed by slight pull or push. This door is used where the width of the door is large and space is insufficient to provide two-leafed hinged shutters to open. This door is fabricated from thin mild steel sections.