railroad ties(I got mine free) or other material for border (plastic paver edging, 2 by's, landscape timber, something for paver support, edge material. Try not to use rocks, you need something long if possible). Step 3: Deciding Where and How Big. 2 More Images Well...I knew where...
For this design, you can use Cinder blocks for the base, cement landscape edging for the walls, landscape blocks for the corners andold bricksto wrap it up. Just keep in mind that this type of pit would take quite a lot of space so If your yard is spacious – stick to this idea!