Well I've got the complete floor ripped out 
of my 82 entertainer o/b, and I'm getting differing opinions on what kind of plywood to use. 1....I've been told marine plywwod isn't really an advantage for a floor the only difference is it has less voids than regular wood. 2. I was told to use pressure treated plywood by one guy, then someone else told me that fiberglass won't stick to pressure treated, then I was told it will stick if I leave it out in the sun to dry for a couple of days.....3. I was told resin is porus, so there is no point in coating the wood with resin to seal it.... I had to rip out all the foam in my main floor area as it was saturated with water, I don't really plan on re-doing the foam so I thought I would leave it a regular bilge area so I wanted to seal the wood so water in the bilge won't rot it.Also should I just replace the 3/4" wide floor support that runs the length of the floor, or do I also need supports going across the floor since I won't have the foam in there to support it. Thanks in advance for all your help, I'm fairly new to this type of repair and I want to do it right the first time 
......Eric
of my 82 entertainer o/b, and I'm getting differing opinions on what kind of plywood to use. 1....I've been told marine plywwod isn't really an advantage for a floor the only difference is it has less voids than regular wood. 2. I was told to use pressure treated plywood by one guy, then someone else told me that fiberglass won't stick to pressure treated, then I was told it will stick if I leave it out in the sun to dry for a couple of days.....3. I was told resin is porus, so there is no point in coating the wood with resin to seal it.... I had to rip out all the foam in my main floor area as it was saturated with water, I don't really plan on re-doing the foam so I thought I would leave it a regular bilge area so I wanted to seal the wood so water in the bilge won't rot it.Also should I just replace the 3/4" wide floor support that runs the length of the floor, or do I also need supports going across the floor since I won't have the foam in there to support it. Thanks in advance for all your help, I'm fairly new to this type of repair and I want to do it right the first time ......Eric
It's amazing how these projects multiply on you, I went from thinking I had to replace a small section of the floor, to replacing the COMPLETE floor, to now as I was doing my final cleanup of the bottom of the boat I discovered a soft area (right below where the original hole in my floor was where a ski pylon was installed) in the "balsa core".
I guess I will just cut it out to dry wood , but my question is, should I try to find balsa to replace it? Is it even available anymore? the first place I called said they had it in the 80's, no help there. If I can't find it, what should I use in it's place?...thanks in advance for any advice, anymore surprises and I'm about ready to pull the plug on this project...
Does anyone have any suggestions? Can a moderator fix this for me? I'll try to attatch a link to a kodak gallery if I can't post them here. - Eric
