Recommend flooring We have no floor in one of our 1st floor rooms. The room leads to the backyard so it wasn't long after we bought this house that we had to rip out the white carpeting, having kids and pets. Now we have to decide what to put down. We wanted real pine planks but if the dog potties on it, it will stain, black. No ceramic tile. I've had it in a high traffic area before and the grout gets nasty. It can crack too. Is there any way to to use real pine and seriously water proof it? We've even thought of outdoor porch paint but that may still scratch and wear through..... Any ideas?