When preparing your location for the arrival of the shed, there are several options that will insure your structure has a level foundation upon which to sit.
For smaller buildings, a solid, level surface will often suffice.
Another foundation option is patio blocks placed avery 6' to 8' under each runner. The ground should be fairly level to use this option.
A good option is a gravel pad. It is best to have four inches of gravel and to allow at least one foot additional space around the building.
Note: Site preparation and permits are the customer's responsibility.