These doors are generally utilized where there is space limitation for the swing of a Hinged door or for Aesthetic purposes. These doors are commonly used in commercial structures.

The doors shutter slides horizontally along the tracks with the help of runners and rails. Generally, the door is hung by two trolley hangers at the top of the door running in a concealed track, while at the bottom rollers are provided to slide the shutter in the channel/track. For providing easy movement plastic rollers are fixed at top/bottom.