i'm over the metal fire pits that that eventually rust from the heat. once this garage gets done i'm building a stone fire pit. stone pavers are a PITA to set and not get hung up on chairs. i'm thinking about pouring, coloring, and stamping concrete to look like stone. otherwise it might be like the old house. pull up the sod, circular barrier around perimeter, ground grid in the middle, and add either #1 round or Pea stone. weeding is a PITA but not a problem if you stay on top of it with white vingear, Dawn soap, and Morton salt mix.