Door Standard 1 Car Garage Size. The standard size for double garage doors is 16 feet wide and 7 to 8 feet high. While building a new garage it is better to check available sizes make a selection and create a rough opening according to manufacturer specifications. Typically one big door for two car garage will cost less comparing to installing separate smaller doors for.
It is also a good idea to have a 3 foot wide door to the exterior on the side of the garage. A single car garage door is typically 8 feet wide adding another 8 feet in width for every additional vehicle with a standard height of 7 feet.
We set out illustrated diagrams setting out all key dimensions including width depth and more.
Those with larger vehicles often opt for the latter. They are most often 1 to 1 5 inches in thickness. Many home builders do not consider this a structural necessity but a style and price choice for the homeowner. Most single doorway garages will have the standard 7 ft.