We can setup on most surfaces as long as it is pretty level. Inflatables can be installed on grass, dirt, asphalt, and concrete. Grass setups are always preferred, and they are the safest. Concrete or asphalt setup are available with proper notice. Dirt setups are the least desirable for the comfort of kids and our stuff. When a dirt setup is a must, we ask that you please put something for kids to walk on. We can't set up on any stones because the constant friction will cause the vinyl to wear. There must not be underground irrigation pipes, buried telephone cables, or electric lines in the vicinity of the setup. Please do not run sprinklers or mow lawns on the same day as your event.