Standard single car garage door widths start at 8 feet for single car garages and move up in 12 inch increments to 10 feet wide.
													
																	Normal height of garage door. 
									
	
		
	
																	A garage will need backroom that equals the door height plus 18 inches and possibly more based on the installation of an automatic garage door opener. 
																	For a shed the best size for installing a garage door is 8 x 14 feet. 
																	As for the height it is 7 or 8 feet. 
																	Standard garage door sizes range from single doors to commercial doors. 
															
													
									
	
		
	
																	Custom doors range per home. 
																	If you have an rv the door can go up to 10 feet. 
																	Use a step ladder to more easily measure the ceiling height. 
																	Double garage doors have a width of 12 to 16 feet. 
															
													
									
	
		
	
																	Single garage doors are a height of 7 feet with widths from 8 to 10 feet. 
																	For a garage attached or detached from your house of around 18 x 24 feet most popular width for a garage door is 16 feet. 
																	This is for a normal home with a normal car truck suv or van parked inside. 
																	Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around. 
															
													
									
	
		
	
																	Double car garage doors typically start at 12 feet wide and move. 
																	Then the garage door would be 6 x 6 6. 
																	Rv garage doors are taller with a height of 8 to 9 feet and width of 16. 
																	2 a double door.