I am air drying some lumber before kiln drying it. I have it all stickered and stacked. Do I have to have weight on it while air drying? If so, how much?
Yes, weight it whenever you can do so. The weight must be substantial if it is to do you any good. About 10 inches of concrete would be very effective, covering the entire pile. But I do not know anyone using that much weight.
Much of this info is covered in the new Air Drying Manual from the US Forest Products Lab.
Gene Wengert, forum technical advisor