Perpendicular parking stalls for cars should be 18.5 feet long with widths of 9 feet.
The exact dimensions of stalls depend on the type of parking layout, see the BMTE Calculator. Compact spaces could be provided if determined that there will be a consistent number of compact size vehicles accessing the facility on a regular basis. If providing compact car spaces, they can be as small as 8 by 16 feet. However, compact spaces should not be designed for if sufficient space is available for all spaces to be 9 by 18.5 feet.