Types of Doors

A sliding door is a type of door which opens horizontally by sliding, usually horizontal to a wall.
 
A sliding door is a type of door which opens horizontally by sliding, usually horizontal to a wall.
 
A hinged door is the most common door and has been in existence for a lot longer. A hinged door traditionally has 2-3 hinges on the vertical long edge of the door and is either left or right-handed. A hinged door can be fitted to swing inwards or outwards.
A hinged door is the most common door and has been in existence for a lot longer. A hinged door traditionally has 2-3 hinges on the vertical long edge of the door and is either left or right-handed. A hinged door can be fitted to swing inwards or outwards.  
A sliding door is a type of door which opens horizontally by sliding, usually horizontal to a wall.
A door that opens and closes by sliding sideways instead of by swinging on hinges.