The technical story of why Engineered

4-Square Kiln-Dried lumber is your best buy #8&

Green

When it is first cut, a green S-foot stud may contain as'much as three gallons of water. There are about three pints of water in the same stud (at 30lo moisture content) when it gets to market.

Allowing lumber that has not been Kiln-Dried to ,drvout" within the framework of a house only invites troubl"e. The wood cell di_agrams at_the left will expiain our point.--- As lumber dries out the "free water',- between ihe cells leaves first, then the water in the cell wall. A,s the celi-waGi evaporates the_lumber begins-to shrink (at about ZS/o mois_ ture- cpntent). Now if you build a wall with green stuls cpn_ taining variolrs percentages of water you aie bound to ;;t u.neven shrinkage. The result can be warping, twisting aid checking_of thJlumber. This is *it"t "aG"J'uneven foalls. stickin_g doors and windows, plaster cracks and other aefect"l With Engineered 4-Square lumber ttre *ater- that -can cause trouble is removed at the mill. pvery piece is preshrunk to a narrow margin.of moisture uniformity. Nothirig is over 79/o moisture and the average js l5To.