I recently renovated the fireplace. It had red brick around it and a red brick hearth and old broken brass doors. In my excitement and haste I failed to take any before pictures. Removed the hearth and then I finished the grade with leveling cement (love that stuff). I chose to put bedding sand under the marble instead of thin set. Hopefully that will help prevent expand and contract fissures, etc. I got the new black door on craigslist.