examples of doors [3]
				   		Doors: composed of a movable part, the wing, and a frame; their function is to close up a bay.
				
 
					
					
					
						folding door 
						Sliding door whose wing is composed of two articulated panels that fold together when opened.
				  	
 
					
						sliding folding door 
						Sliding door whose wing is composed of articulated panels that fold together when opened.
				  	
 
					
						conventional door 
						Door made up of a wing that opens and closes by pivoting on hinges.
				  	
 
					
						sliding door 
						Panel or panels of a door sliding horizontally along a set of tracks.