However, it is equally important to use kiln-dried finish lumber and trim, for it is your best assurance against cupping and twisting, against warping, shrinking, or swelling. Scientifically controlled kiln-drying removes moisture evenly from lumber, and the kiln-drying process preshrinks the cells… … Be sure you build with Weyerhaeuser 4 SQUARE Kiln-Dried Lumber . . . end-marked with the Weyerhaeuser 4 SQUARE trademark
Architecture, Domestic
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