Have Boat Questions? Ask a Boat Repair Expert.
Hello my name is ***** ***** am I speaking with?
In regards ***** ***** boats structure what a marine surveyor does (and what I do when doing inspections) is check the boats hull with a tool called a protimiter. A protmiter is a fancy word for what is a fairly expensive moisture meter that will read the content of water in the wood core beneath the fiberglass skin without having to make holes. 20% and under is a solid dry boat. 20 to 40% will usually still float and be fairly safe. Any more than that and you are looking at a hull that's not really seaworthy.
That is the proper way to do it. What other questions did you have on this?