Average Garage Size: What's Right for You?
Choosing the right standard garage size depends on how you'll use the space. Knowing the average garage size of a one, two and three car garage gives you a great starting point. Below you'll find the typical garage size, standard garage dimensions and a garage size chart to help you decide.

Garage Size Chart: Standard Garage Dimensions
Here are the most common garage measurements standards, listed by garage width and depth. Use this size chart as a quick reference for standard garage length, standard garage depth and overall square footage.
| Garage Type | Average Size (W x D) | Other Common Sizes |
|---|---|---|
| Single Car Garage | 12 x 22 ft | 14 x 22, 14 x 24, 16 x 24 ft |
| Two Car Garage (Double) | 18 x 20 ft | 20 x 20, 20 x 22, 22 x 22 ft |
| Three Car Garage | 32 x 22 ft | 36 x 25, 38 x 26, 40 x 30 ft |
Single Car Garage Size
One car garages are the smallest option. The average single car garage size is 12 feet wide and 22 feet deep. Other common one car garage dimensions include 14 x 22, 16 x 24 and 14 x 24 feet, with the wider sizes allowing more storage while still fitting a car inside.
2 Car Garage Size (Double Garage Size)
A two car garage is made to fit two cars, but the extra room is also handy for outdoor equipment like a lawn mower or snow blower. The average 2 car garage size, or double garage size, is 18 feet wide by 20 feet deep. Other common sizes include 20 x 20, 22 x 22 and 20 x 22 feet, with the wider options making it easier to open your car doors.
3 Car Garage Size
The largest standard garage type is a three car garage, ideal for families with multiple drivers or a large additional living space. The standard measurements of a 3 car garage are usually 32 feet wide by 22 feet deep. Larger options include 36 x 25, 38 x 26 and 40 x 30 feet.

Attached vs Detached Garages
Another factor to consider is whether you want an attached or detached garage. An attached garage shares your home's heating and cooling system, while a detached garage offers more privacy and noise separation since it's a stand alone building.

With enough space, you can even build a detached garage while keeping an attached one for more storage. Get a free quote now for your new detached garage.
Going Beyond the Standard Garage Size
A custom built garage can be made any size or shape to fit your needs, with no standard garage size to limit you. You can build a three car garage with a single opening, a 4 car garage size, or a taller garage that lets you build a loft for extra living space above your cars. Custom builds are also great if you want to turn the garage into an additional living space.
Get the Perfect Sized Garage for Your Home
Knowing the average garage size of a one, two and three car garage helps you plan how much square footage you'll need. Danley's has built custom garages for Chicago homeowners since 1959. Get a free quote today.
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