Ok, here's the floor. I was only going to patch a small spot but when I pulled the carpet back I realized th entire leading edge of the ski locker was rotting and a more permanent repair was my best solution. I pulled the seats which was very easy to do and I pulled the entire carpet out of the floor which was also easy to do. It just pulled right up. i was going to cut out the damaged area and replace the wood by attaching the new wood to the good wood on the floor with small metal straps until I realized that there was another floor joist about 4" in. I decided to cut the middle of that and then I found a solid stringer on the back (stern) that I cut to.
In the front area, Maxum had one 1x2 stringer in front of the locker opening that had completely rotted out so I decided to cut all the way up and replace the floor and add stringers. I will probably use pressure treated 2x4 for the floor support(s).
Also, you can see that Maxum used 3/4 plywood ont he side of the front part of the locker and I am not sure why. It doesn't appear to support anything and it was rotted to ****. the floor joist it was mounted to is starting to rot as well. It was fiberglassed in but I will not be redoing it that way.
I plan on getting propylene glycol to dry the joist and then I will use wood epoxy to repair the wood rot damage to the joist. Once that drys I am going to replace the section of rotted plywood with Marine grade and then I am only goping to fiberglass the piece in along the bottom and sides. I believe the wood wasn't able to breathe/dry and that's what caused the rot.