1987 bayliner capri needs a new floor
Marine ply is way too pricey for me, and stress handled is best if you are expecting termites. I used B/C exterior grade (inside grade plywood will delaminating just about earlier than you get it home), saturated in poly resin (with out catalyst). The top surface, I protected with one layer of fiberglass. It would not must be mounted down; unless you expect to turn the boat the other way up, gravity does an excellent job retaining it down. I elected not to carpet, it's lovely handy to simply hose it down on the finish of the day, and the fiberglass makes a reasonably good non-skid surface. It gets kinda scorching in the summer, I from time to time wet it down. A coat of white paint would make it cooler, but that is quite a lot of hindrance for my historical boat.
a whole new floor would ofcourse require you cut out the old one unbolding any hardware or seats that may be attached to it, when cutting it out be sure u are not going to be cutting thru any wires or hoses, you will need a sheet or two of marine plywood as well as a lot of fiberglass mat and resin, you will want to mount some strips of wood on what it left of the floor edge or the walls if you had to remove the whole floor, this is what you will be screwing the new floor down to secure it, you will want to fiberglass the backside as well as the edges of the new wood before it is put down as well as any kind of spacer blocks you will need to brace the floor off of the stringers or fuel tank or whatever may be below the floor, once you have laid down and screwed the floor to the stringers and supports you will than go over it with fiberglass mat until it is approximately the same hight of what it was before or as high as it needs to be to tie into the walls or other flooring, you can than grind it smooth spray some gellcote and sand, reapply and sand as wanted. if you want it really level you can apply some marine bondo before the gellcote, less time sanding and spraying gellcote. And of course during all of this their is specific ways and technics to applying fiber glass, just laying it down and wetting it in resin does not guarantee a good bond. So are you trying to do this yourself?
