If there are no stone yards or quarries in your area, you can order it through your local builder's supply. It's usually bundled on wooden pallets and sold by weight. One pallet typically contains one and a half tons of stone. Depending on thickness, one ton of flagstone will cover 80 to 100 square feet of walkway. Flagstone may be set directly on well-drained earth, but placing it on a base of gravel or sand ensures drainage and makes it easier to bed and level rough, heavy stone.