You pull the hoops over and stretch the floor out like you would normally then step in side and put the framework together. Once in position adjust the hoop, that's it. Slope of the ground doesn't affect anything because the rod closest to the camper rests against the tire holding the framework in the correct position, that stretches the floor out nice and flat and once the hoop is adjusted so the floor is just touching the ground the end wall hangs nice and straight. As I said before, only for free standing campers;i.e., all three hoops are hinged at the camper body.