During the preparation process, we remove the original lawn and top 3 inches of topsoil. We will then replace it with a proper layer of crushed base material that we will spread evenly and compact with a machine. Once the artificial grass is layed out on top of it and properly fitted, stretched, and cut, will we hammer in galvanized 6-inch nails all along the edges and seams. The nails as well as the base layer beneath the grass will ensure that the artificial grass is secured firmly on the ground and not be allowed to move.