How To Build A Fire Ring With Retaining Wall Blocks. Build a basic backyard fire pit. A keystone block retaining wall can be a great landscaping feature in your place.
Install a retaining wall crushed rock behind the wall.
Some such blocks are made with flanges that slip over the rear edge of the preceding course; Blocks may be adjusted slightly to form straight lines or smooth flowing curves. Retaining walls can be build of many different materials, including wood timbers, bricks, or natural boulders. Your fire pit will be just fine with retaining wall blocks, but once you're done building the pit, you may wish to insert a steel fire ring.