After 3 years of wanting one, I've decided it was time. Drove a pin in the desired location and used a dry line to complete a circle. Dug 9.5 inches and leveled using dry line and a mason's level. I will fill 6 inches with gravel or stone for drainage and then sand and maybe pavers for a base. I'm gonna use PaveStones "Rumble Stone" from the big box store. A 36" grate will be purchased so that I can cook on it as well.