Individual entrance doors: Standard doors that provide access to a building or room.
Double doors: Two doors that meet in the middle and are often used in larger entrance areas.
Sliding doors: Doors that slide sideways or vertically and can save space.
Automatic doors: Doors that open and close automatically, e.g. with the help of sensors or buttons.
Security doors: Special doors with increased burglary or fire protection.
Hinged doors: Doors that rotate around a central axis and allow people to pass through in both directions.