Was hoping to get some good advice on fixing a jon boat. I have a very simple 12 ft fiberglass jon boat, that has a weak floor. I was curious if there was an easy way to make it more sturdy? I have never owned a boat nor have I worked on one. But I am assuming there is an easy,.cheap,.efficient way that I could make this work. Not going for looks just want it to be usable. Hope someone here can help me out. Thanks!