Center Opening Doors: These doors consist of two opposing panels that slide open from the center toward the sides. This type is the fastest and most common in passenger elevators in residential and commercial buildings, as it provides a wide and quick opening.
Side Opening Doors: These consist of one or two panels that slide to one side to open the door. This type is effectively used in places where the elevator opening is narrow, such as in hospital or service elevators, to increase the available entrance space.
Telescopic Doors: These doors consist of two or three panels that slide over each other to one side. They are used when there is a need for the largest possible entrance opening, especially in elevators with limited space.
