The garage doors have no fixed sizes or dimensions and the size of the door depends upon various different parameters. Majority of the customers demand the garage doors by saying that their garage is of standard size and they need a garage door.
Location is the main factor controlling the standards and sizes. The door sizes differ from state to state and there is no surety that the standard sized door is also the same in the other state.
The differences in sizes can be seen even on the city level. The major cities often have then adopted sizes and standards and the local manufacturers make the items according to that particular area in which they have established their business. Therefore, in order to buy the garage door of appropriate size, you will have to keep in mind this point. The other reason may be difference of the age of the garage, if your garage is older than a decade then definitely it may have a different or odd size as compared to the door manufactures these days.
The size of the garage door depends primarily on the time when it was built. IF you are living in an older home that was built decades ago then you will have notices that the doors have fairly different sizes as compared to the doors being used these days.
The garage door sizes depend on the vehicle in use. If the house owner that lived in the house before use have some high truck and they used to park it at home then the garage door will be of larger size and if the owners used cars but you need to park a 4 by 4 then you will face the difficulty of size and will have to rebuilt or enlarge the garage.
16×17 and 16×8 ft are the most common built house sizes.
The door size also depends on the needs of the owner whether he wants to park a normal car or some vehicle. Such garages have custom sized doors.
The dealers can be very helpful and you can check the sized by visiting the dealer nearby.