This is the one I built at the end of this summer. It still isnt complete because of my broken leg, but I was able to get most of the roof on it. Im hoping to finish it up in a few weeks. It was not that difficult to build myself, the only thing I used the tractor for was to dig holes and then set the center posts. It is 36x36 with a 12x36 upstairs. No concrete floor as this is an agricultural building for now. Out of pocket cost to finish it is a little over $5500.