. Wooden box and crate construction . oned. The sapwood of some seasonedhardwoods is subject to attack by an insect known as thepowder-post beetle. Hickory, ash, and oak are most subjectto this injury, but butternut, maple, elm, poplar, sycamore,and others are also attacked., Containers made from suchlumber should not be used in foreign trade because somecountries will not allow such packages to enter for fear of theintroduction of injurious insects. Proper Methods of Piling Lumber in the Yard—Theexpense which it is advisable to incur in equipping a lumberyard for proper air seasoning of lumbe
. Wooden box and crate construction . oned. The sapwood of some seasonedhardwoods is subject to attack by an insect known as thepowder-post beetle. Hickory, ash, and oak are most subjectto this injury, but butternut, maple, elm, poplar, sycamore,and others are also attacked., Containers made from suchlumber should not be used in foreign trade because somecountries will not allow such packages to enter for fear of theintroduction of injurious insects. Proper Methods of Piling Lumber in the Yard—Theexpense which it is advisable to incur in equipping a lumberyard for proper air seasoning of lumber depends largely on USE OF WOOD IN BOX AND CRATE CONSTRUCTON 33 the permanency of its location. The small amount of addi-tional work required for properly piling lumber so as toshorten the time required for seasoning and reduce deteriora-tion is usually well worth while. Lumber thrown on theground promiscuously, or piled on sagged foundations withloose projecting ends, will surely de])reciate in value in acomparatively short Fig. 9—Lumber piled sidewise on concrete and metal foundations. A lumber yard should be well drained, and so situatedand divided up by alleys as to reduce the cost of handlingthe lumber to a minimum. Box lumber is practically always piled flat; it may liewith the ends of the boards toward the alley (endwise pil-ing), or parallel with the alley (sidewise piling), as shown infigure 10. In either case the piles slope from front to rear,away from the alley. Endwise piling is more common be-cause it facilitates handling of the lumber and because of thebetter visual inspection from the alley which it afifords. Side-wise piling has the advantage of giving better air circulationfrom side to side, and what moisture enters the piles runsacross the boards instead of running lengthwise and accumu-lating under the stickers as in end-piling. WOODEN BOX AND CRATE CONSTRUCTION
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Keywords: ., bookauthorforestpr, bookcentury1900, bookdecade1920, bookyear1921
