Before you can have your storage shed placed, you prepare a solid leveled base including gravel or crushed stone with either treated wood foundations or concrete foundation blocks. For large sheds, you require strong foundations to uniformly transfer the load. Similarly keeping in view the overall topography of the area you can’t place storage sheds directly on the ground. So, due to the level difference of the floor level with the adjacent ground level you have to build a storage shed ramp of suitable length and slope provision for safe and stress-free movement of heavy equipment in and out of the garage.