What is the standard size of a parking space in the US?

The most common US standard parking space is 9 feet wide by 18 feet long (about 2.7 by 5.5 meters), with a 24-foot drive aisle for 90-degree parking. Some municipalities allow 8.5 by 18 in tight infill areas, while suburban big-box lots may use 9.5 by 19.

What are ADA parking space dimensions?

ADA car-accessible stalls must be at least 8 feet wide with a 5-foot access aisle alongside. Van-accessible stalls must be at least 8 feet wide with an 8-foot access aisle. Stall length is typically 18 feet. At least 1 of every 6 accessible stalls must be van accessible.

How wide should a parking lot drive aisle be?

For 90-degree parking, the standard two-way aisle is 24 feet wide. Angled parking allows narrower one-way aisles: about 13 feet for 45-degree, 18 feet for 60-degree, and 22 feet for 75-degree stalls. Parallel parking only needs about a 12-foot travel lane.

What size is a compact parking space?

A compact stall is typically 8 feet wide by 16 feet long (2.4 by 4.9 meters). Compact stalls are usually limited to a percentage of total stalls under local zoning code, often 25 to 40 percent.

How much total space do you need for a single parking spot including the aisle?

A single 9 by 18 standard stall plus its share of a 24-foot two-way aisle works out to roughly 300 to 350 square feet per car when you account for half the aisle. Designers often use 300 sq ft per stall as a planning rule of thumb for surface lots.

Free Parking Space Dimensions Calculator

A standard US parking space is 9 feet wide by 18 feet long (about 2.7 by 5.5 meters), with a 24-foot drive aisle. Use this calculator to size standard, compact, ADA, parallel, or angled stalls and see the total lot area you need.

Stall type

Most common municipal standard for 90-degree parking.

Layout

Number of spaces

Stall width

9 ft

Stall length

18 ft

Drive aisle

24 ft

Diagram (3 stalls + drive aisle)

Total Lot Area for 20 spaces

Total area

7,560 sq ft

378 sq ft per stall (incl. aisle)

Minimum lot dimensions

180 ft x 42 ft

20 stalls per row

How this is calculated

Effective stall width = 9 ft.
Stalls per row = total spaces.
Row depth = stall length + drive aisle.
Total area = row width x row depth. Per-stall area divides total by number of spaces, including aisle share.
Numbers are planning estimates. Always verify against local zoning code, ADA requirements, and ITE Parking Generation standards before construction.

Common Parking Stall Dimensions

Stall type	Width	Length	Aisle
Standard car	9 ft	18 ft	24 ft
Compact car	8 ft	16 ft	22 ft
SUV / Truck	9.5 ft	19 ft	26 ft
ADA accessible (car)	8 ft + 5 ft	18 ft	24 ft
ADA van accessible	8 ft + 8 ft	18 ft	24 ft
Parallel	8 ft	22 ft	12 ft
Angled 45 degrees	9 ft	18 ft	13 ft
Angled 60 degrees	9 ft	18 ft	18 ft
Angled 75 degrees	9 ft	18 ft	22 ft
Motorcycle	4 ft	8 ft	18 ft

Dimensions are typical US municipal and ITE planning values. Local codes vary, so always check the latest jurisdiction-specific requirements before designing a lot.

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Free Parking Space Dimensions Calculator

Total Lot Area for 20 spaces

How this is calculated

Common Parking Stall Dimensions

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Frequently Asked Questions

What is the standard size of a parking space in the US?

What are ADA parking space dimensions?

How wide should a parking lot drive aisle be?

What size is a compact parking space?

How much total space do you need for a single parking spot including the aisle?

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