Replace floor with??
 

Working on my new to me V20. All solid except the floor by the CC is soft. What do I replace it with 3/4 ply? Then what? It has rounded edges I will need to belt sand that but what then can I finish it all with to last a long time and look like the rest of the boat. Bed liner? Epoxy resin then bed liner?? I figured peopler here would know. Thanks!

if you are talking about the gas tank cover, best way is to remove the console(yes you will have to derig it) and pull the gas tank cover, flip it over and dig the rotted wood out, leaving the fiberglass and gelcoat untouched, then glass new wood to the back side

Ahhhh got it,,, didn't know that... perfect thanks!

This post just saved untold thousands of dollars and God knows blood sweat and tears.

I have a gallon of resin but I bought it 3 years ago I've heard it has a shelf life do you think it would be okay if I went heavy on the hardener?

Is marine plywood different or better than simple treated wood at the lumberyard? You know... the green stuff. Thx

Yes, Marine AB plywood is Douglas Fir. Not sure what the Big Box stores carry. Doing a quick search says you can even get marine ply wood at these places.
http://www.roseburg.com/Product/abmarine/

As for the Epoxy... I've used stuff that is expired before with no problems. Just do a test batch to make sure it work for you.

Yes, you want MARINE plywood, not PRESSURE TREATED. Resin adheres better with out the chemicals. I would think if the resin is unopened and sealed up tight it could still be used. Like mentioned before make a test batch first. Probably a good idea anyway no matter how old.

But no don't 'go heavy on the hardener'.... Mix at normal ratio.

I have successfully used 2 part epoxy paint (Con-Lux) that was over 10 years old on a trailer. Worked perfectly. Mix up a test batch at normal ratios to confirm it's usability. But I'm guessing it will be fine.