A standard 2-car garage is about 20 x 20 ft at minimum and 24 x 24 ft recommended. A 1-car garage is 12 x 22 ft minimum (14 x 24 ft recommended), and a 3-car garage is 32 x 22 ft minimum (36 x 24 ft recommended).
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Typical interior dimensions used by builders and garage plan sellers. These are common guidelines, not building code requirements, so check local zoning and setbacks before you build.
| Garage | Minimum | Recommended | Large |
|---|---|---|---|
| 1-car | 12 x 22 ft264 sq ft | 14 x 24 ft336 sq ft | 16 x 26 ft416 sq ft |
| 2-car | 20 x 20 ft400 sq ft | 24 x 24 ft576 sq ft | 26 x 28 ft728 sq ft |
| 3-car | 32 x 22 ft704 sq ft | 36 x 24 ft864 sq ft | 38 x 26 ft988 sq ft |
| 4-car | 42 x 22 ft924 sq ft | 48 x 24 ft1152 sq ft | 52 x 26 ft1352 sq ft |
| Door | Sizes (W x H) | Best for |
|---|---|---|
| Single | 8 x 7 ft, 9 x 7 ft | One car or small SUV. 9 ft is the most common. |
| Wide single | 10 x 7 ft | Minivans and wide vehicles, easier with mirrors out. |
| Tall single | 9 x 8 ft, 10 x 8 ft | Full-size trucks and SUVs, roof racks, lifted vehicles. |
| Double | 16 x 7 ft, 18 x 7 ft | Two cars through one door. 18 ft gives more room per car. |
| Tall double | 16 x 8 ft, 18 x 8 ft | Two full-size trucks or SUVs. |
| RV or boat | 12 x 12 ft, 12 x 14 ft | Motorhomes, campers, and boats on trailers. |
Pick how many cars you need to park, from 1 to 4, and choose a vehicle type for each bay or enter custom length, width, and height.
Choose minimum, recommended, or comfortable clearance for opening doors between cars and walls and for the walkway in front of the cars.
Add a workbench or shelving on the back or side wall, and space for bikes, a motorcycle, or a lawn mower.
Get the interior width and depth, square footage, garage door sizes, and a top-down diagram, or check whether your cars fit an existing garage.
A standard 2-car garage is about 20 x 20 ft (400 sq ft) at minimum, and 24 x 24 ft (576 sq ft) is the recommended size for two midsize vehicles with room to open doors and walk around. Go to 24 x 26 ft or larger for full-size trucks, SUVs, or a workbench.
Yes, but it is tight. Two midsize sedans fit in a 20 x 20 ft garage with about 2.5 ft between the cars and to each wall and under 4 ft of spare length, so doors open only part way and there is little room for storage. Full-size trucks and SUVs are a squeeze, so 22 x 22 ft or 24 x 24 ft is better.
A 3-car garage is typically 32 x 22 ft at minimum (704 sq ft) and 36 x 24 ft (864 sq ft) recommended. A 38 x 26 ft garage (988 sq ft) gives comfortable room for three full-size vehicles plus storage.
Use either one 16 x 7 ft double door or two 9 x 7 ft single doors. Choose an 18 ft double or 10 ft singles for wide vehicles, and an 8 ft tall door for full-size pickups, large SUVs, roof racks, or lifted trucks.
Plan at least 2 to 3 ft on each side so doors can open, 3 to 4 ft between two cars, and a 3 ft walkway in front of the bumper. Leave 1 to 2 ft behind the car so the garage door closes clear, and at least 4 in of headroom under the door.
Standard, compact, ADA, and angled stall sizes plus total lot area.
Size a single or double driveway leading up to your garage.
Check whether a tall vehicle clears a posted garage height.
Estimate concrete for a garage slab, footings, or apron.
Estimate what it costs to charge an electric car at home.
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