If you need a double garage door the typical measurement is 16 ft.
													
																	Sieting garage door. 
									
	
		
	
																	Frame the rough opening to 3 inches wider than the garage door size you have selected. 
																	If you are installing a 9 wide door the opening will be 9 3 wide. 
																	There is no standard garage door size. 
																	Frame the rough opening to a height that is 1 5 taller than the door that you have selected. 
															
													
									
	
		
	
																	A problem with the spring tension could cause the door to open or close unevenly improperly or at the wrong speed and adjusting the springs will likely solve the problem.