How to check wood

[Jim Tesno]

Hi, Been a long time since I posted. Have a chance to look at a boat this weekend, not sure what model. My question is, assuming it's been in someones barn for a long time, taking a moisture meter to the wood won't tell me much. Other than just pushing on the wood to see if it feels mushy, how can I tell if the wood condition is ok? If I use a meter what is a good reading and a bad reading?