For optimum lumber quality, load the dry kiln according to the following suggestions. Never place lumber directly on the floor. Stack lumber in single layers of uniform thickness, with the thinnest material on the bottom and the longest boards on the outside edges. Separate each layer with stickers of uniform thickness. Place the stickers every 12 to 18 inches along the length of the pile, directly above the stickers in the layer below.
Stickers allow air movement through the pile and prevent warping.
A board with a loose end will warp. A smaller load will dry more rapidly than is desired. Avoid cutting sample board from areas near knots and areas closer than 12 inches to the ends of the lumber. Cut a 1-inch section from each end of the sample boards. End coat both ends of the sample boards and return them to the wood pile in a spot where they will receive the same air velocity as the rest of the lumber.