ParkCAD comes with built-in parking standards for passenger cars, published by governmental organizations worldwide. However, should you want to use ParkCAD to create a parking area for larger vehicles, such as trucks, buses or semi-trailers, create a custom parking standard by specifying the required design parameters, such as vehicle sizes, parking classes, and the supported parking angles.
For further details on how to create new parking standards in ParkCAD, please refer to the How to define custom parking standard in ParkCAD? chapter on this FAQ page.