I am building a timber frame building for processing maple syrup. It is 16 x 24 with 8" x 8" beams. ( an expansion of Sobins garden shed in his book) I want a concrete floor to be able to spray down and clean up after each season. My contractor tells me that a Monolithic or floating slab foundation is fine for such a building frame. I am concerned with the stress points on the corners of the floor. He has indicated he will use re-rod and steel mesh to reinforce. Should I be concerned? I have a bid for a traditional 4' footing, but it is really expensive! Any advise would be appreciated. Thanks, Chris.