You certainly could use it, but I found no cost or structural reasoning to do that to my CVZ. Just two layer 3/4" ply and insuring everything is sealed up. My boat rarely sits in water long, and almost never is left outside. The MN meet represents the most time my boat sits in the water/outside the entire year(about 4 days), so water issues on floor, transom, or stringers is never likely to be an issue. Just my $0.02