Home made fire pit. 1. Dig a large circular hole, 2-3ft deep. 2. Line bottom with landscaping rock, make sure to cover the bottom in a consistent layer. 3. Line sides with red FIRE BRICK*** 4. Line the top with landscaping bricks to the design of your liking. 5. To use, simply add wood, charcoal, newspaper, and other fire pit material, as you would normally use.