One more question. I'm planning on using pressure treated wood for the sills, and putting the sills on a bed of gravel. The building it self will have no floor. I don't have too much faith in PT wood, but other than raising it all up on blocks or sonotubes this is the best I could come up with. Sound suitable? Since this is primarily an open wood shed, the sills and post bottoms will be exposed to the weather.
