What Is the Size of a Standard 2-Car Garage?

What Is the Size of a Standard 2-Car Garage?

Design a garage that can accomodate two cars, as well as other storage needs

By Richard Asmus

Front View of 2-Car Garage
Photo by iStockphoto.comBookmark and Share

A standard two-car garage must be large enough to hold two standard-sized cars, along with a standard amount of storage space for the standard needs of the standard family. But since all such things vary -- and thus, can never really be standard -- the size of a garage must also vary, depending on the size of your cars and whatever else your want to put in your garage, from the lawnmower to a workshop to a bike rack.

Minimum Size

The average length of a compact car is about 15 feet, with a width of 5 1/2 feet and a height of 4 1/2 feet. Two would require a width of 11 feet and a length of 15 feet, just for the cars. Add 3 feet between them and on each side to open doors, and 2 feet front and back for walk space and you have a garage roughly 20 feet wide and 19 feet deep. One standard design two-car garage is 20 feet by 20 feet.

Larger Vehicle, No Storage

Larger SUVs average just over 18 feet long, 6 1/2 feet wide and a little over 6 feet high. Two of them would just barely fit in the minimum size, with difficulty opening doors and getting around them with the garage door shut. So ideally a standard size for two large SUVs would have to be 22 feet wide and 22 deep. Standard larger size two-car garages designs include 22, 24 or 26 feet for either width or depth.

Available Storage Space

The floor plans for the above garages may be adequate if your items to be stored can be placed between the vehicles or beside them near the front fenders, where they don't block the doors or the walk space. Also, additional storage could be added in cabinets or shelves mounted higher on the walls in the back or on the sides. If this is not adequate storage, or you have larger SUVs, you may need to increase your floor dimensions.

Larger Standard Sizes

Shops or offices can be added on the sides or in the back. Some designs extend the length of the garage by up to 6 feet or more to add a workbench and workspace along the back wall, increasing the size to 22 feet wide by 28 feet deep. Also the storage area, shop or office could be added on either side, making it 28 feet wide by 22 feet deep. Some standard larger sized two-car garage designs include 36 feet by 24 feet and 30 feet by 28.

Ceiling and Roof

A standard ceiling height for a two-car garage is 8 feet, allowing a standard 7-foot high door to fit when it opens. A standard roof with a pitch of 4:12 provides a reasonable amount of storage in the rafters or above the ceiling. But with an A-frame or a barn style roof, an additional storage area or an office -- or even an apartment -- could be added above. Some sources provide standard two-car garage designs with these options.

About the Author

Richard Asmus is a regular contributor to DexKnows.

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