FINALLY found the original pin for this! Only cost $42 to make!!! Dig a 2ft deep hole four feet around. Purchase 25 4x4x12 pavers and 12 flagstone pavers. We bought ours from Menards. We also put two bags of 3/4" river rock in the bottom. It's so easy, we did it in just a little over an hour.
Outside- DYI Fire Pit: A do-it-yourself step-by-step guide to building your own homemade, in-ground fire pit complete with redwood lid. Main fire hole is 3' in diameter and the entire pit has a diameter of 7'. Fire pit is about 1' deep. Made with leveling sand, gravel, lava rock, decorative rock, stones/brick, stepping stones, redwood (2x4 and 1x12s), handles and a fire grate. Enjoy!!