This is Ambrosia Maple and was reclaimed from a swamp in 2011 (but not by me). The blank started out as 2.25 X 17" X 20", and was cut to 15.5" diameter. In the last photo, you can see the blank, and there is about 3/8" clearance from the deck. The finished product is 14 5/8" diameter, and 1 7/8"...