Thanks for all the input everyone, this is really playing on me. As for the sizes, they are all 2 inch thick pieces. Smallest is about 12" square.
This may need more time to dwell upon.
Well this is my first post on this site and have been lingering around for a while. I have recently enclosed my carport into a garage. The dimensions are 12'x24' with 11' celings. Right now it is just raw unfinished concrete for the floor. I was just posing this question to the guru's on the...