[rfuerst911sc]

I thought I would give an update. I marked the outline on the floor for the cutout and the first two pics are the cuts. I decided to do some crosscuts to make it easier to bust up. Then rented an electric jackhammer and busted it up. That was a real pain in the butt as the existing floor is 6+ inches thick and may be high strength concrete. The third pic is some of the busted up concrete. Finally this morning I dug out the dirt. The new pad will be 8 inches thick minimum and will be 5 1/2 inches below the existing surface. I will also pour a ledge around the perimeter, this ledge will protrude about 2 inches and will be 1 1/2 inches below the existing floor. I plan on taking 3/4 plywood and doubling it up for a cover when the lift is not in use. The plywood will sit on the ledge. The last pic is todays dig. Next will be the rebar.