There are more informed people here but from what I have heard you need to stack the wood with some say 1/4 inch strips of wood.Then you need to rotate the boards every few weeks or months. I don't know exactly how often this needs to be done. I have heard that you need to do this in an outside enviroment for the first year maybe.

I am in over my head but that is basically what I have heard. I could be way off on this though.

Regards, Gordon

Our Dogs make our lives better