On Sep 2, 2008, at 9:00 PM, keith bellinger wrote: > I put down a wood floor in the barn addition (was supposed to be a > shop > but no headroom) using treated joists and 3/4 cdx. That was on a > gravel > base. It has held up good but I haven't used it for much other than > storage. Did you put plastic between the joists and the plywood?