This 14" x 14" chunk of dry ash is about 9 feet long. I can shorten for you if you need and one side needs to be cut anyway (not straight). I also have a 10" x 10" (or so) 3 footer which can be the wood the mantle sits on called a corbel like picture #3.

It is best to TEXT Mark @ 435-640-0283. If you call, you might get auto-blocked, so please text. These are on about 2300 S, 2100 W south in WVC. I have a forklift to load it in a truck.