Read about fire pit ring
You can even purchase a copper fire pit that already has a wire mesh screen attached. This will protect the surrounding area from any errant sparks and flying ashes that may present a fire hazard. The main building material of a copper fire pit is obviously copper. All things being equal, a copper fire pit provides all the same benefits of steel fire pits with the added benefit of being more durable. To help keep the surrounding area clean, you may want to go for a copper fire pit that comes with an easy to adjust ash catcher.