The installation includes placing and leveling the storage shed on site. We do not remove obstacles or provide ground leveling services. The storage sheds are leveled to the terrain with treated wood blocks (ground contact rated). If you prefer, you can supply 4″ x 8″ x 16″ solid concrete blocks (1 block for every 4 perimeter feet) to use in place of the treated wood blocks. These must be on site at the time of the installation. Drivers may charge extra for extremely difficult deliveries.