I have a rotten spot of wood in the bathroom subfloor in the corner between the tub and the toilet. I pulled out some of the wood (with my hand...) and now there is a hole in the floor. Evidently, there was no underlayment between the subfloor and the cheap vinyl tile squares. Not sure how this spot rotted so badly. I had a leak in the tub drain and I believe the fridge in the kitchen (other side of the wall) could have possibly leaked although the damage from under the house looks more like the bathroom. At any rate, based on my research I think I need to use 2X8's perpendicular to the joists (attach using deck screws?) and patch the hole up to the wall with 1" plywood. Should I also take out the vanity and toilet and put some kind of underlayment before I top with some faux stone laminate? Any tips/suggestions are appreciated. Also anything on reinstalling the toilet and vanity - rather not mess with the tub if I don't have to.