Diy Fire Pit Seating Ideas . Diy fire pit + benches = $100.00. 19+ gorgeous living room dark wood floor design ideas [pictures] june 1, 2022. Diy fire pit ideas and backyard seating area (53) Backyard fire from www.pinterest.com Take two tree trunk bases and place them side by side a few feet apart. Fill the hole with a layer of gravel on the very bottom then fill the rest of the way with sand, leaving about 2 or 3 inches or so between the sand and the top of the hole. Outdoor fire pit seating ideas 1.