Whether they are single or double car garage doors.
Double garage door length.
Width by height 12 by 7 feet 14 by 7 feet 16 by 7 feet 18 by 7 feet 12 by 8 feet 14 by 8 feet 16 by 8 feet 18 by 8 feet.
These are common standard sized double garage doors.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
Many 16 x 7 garage doors will be designed with a pair of single 8 foot garage door bays separated by a central post or column.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
Most garage door sizes include options for single car garage doors and double car garage doors but most garage doors are offered in heights of 7 ft.
Garage openers come in a variety of strengths measured in horsepower depending on the size and weight of your garage door.
If you have a large heavy garage door or double garage doors you will need a garage door opener with more horsepower.
Standard garage door sizes.
Single car doors usually come in the following standard.
Standard double garage door sizes.
However most garage doors come in standard sizes.
These days it is also possible to find garage doors that are 20 feet wide or even wider.
For double car styles you can typically expect dimensions to be 16 feet wide by 7 feet high but note that garage doors are not all created equal.
Note that the width is first and the height is second.