Originally Posted by
Kevin Jenness
You don't need a moisture meter to know when this piece has reached equilibrium with its surroundings, just a scale. When the weight stabilizes it has lost as much moisture as it is going to in ambient conditions. Then do whatever you are going to do with it. Be aware that if the average ambient relative humidity changes more than 10 points or so the checks will change size and any filler may loosen up. What you have is by nature a large dimensionally unstable anisotropic hygroscopic object. The one good thing is that if it has not yet reached equilibrium with its surroundings it will soon because of the rapid water loss through end grain.