I have a hypothetical question for anyone who works with construction from the ground up. I have intentions of building a workshop for woodworking, perhaps 16 X 20. I'm curious as to whether or not anyone has weighed the options of concrete vs wood flooring. My concern is cost rather than comfort. I haven't priced either lumber or concrete recently so I am asking here where the advice will no lilely be better than I could get locally. I would either build the structure on a slab, with turned down footing about 2' (warm here in Missouri) or put it on posts with 2x6 or 2x8 floor joists. I"m thinking 9 posts, perhaps 12. (haven't put pencil to paper yet) and a 3/4" t&g floor. Considering the two options, where will my cost come in? If I do the wood floor, then I won't need any concrete work other than for the posts. If I do the concrete then I will need some excavation, some fill and then the materials....and someone to pour it.