Site review and color match visit included with every sale. We suggest that all sheds should be set on a level pad of item #4 which should be 2' wider than the shed in all directions. Item # 4 is know by many names, QP, Quarry process, Shoulder Stone and many more names. It is comprised of 3/4" crushed stone with dirt or dust mixed in and is commonly used under paved driveways. It compacts very well for a firm base and the stone will not spread though your yard in the future like 3/4" crushed stone* at present we serve only Orange & Rockland Counties in New York and Bergen, Passaic & Morris Counties in New Jersey