File:Canadian forest industries July-December 1920 (1920) (20539699471).jpg

Title: Canadian forest industries July-December 1920
Identifier: canadianforjuldec1920donm (find matches)
Year: 1920 (1920s)
Authors:
Subjects: Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries
Publisher: Don Mills, Ont. : Southam Business Publications
Contributing Library: Fisher - University of Toronto
Digitizing Sponsor: University of Toronto

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December 1, 1920 CANADA LUMBERMAN AND WOODWORKER 5T
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The Kinds of Material that Come Out of Giant Douglas Fir Log The illustration shown is from a photograph of a cross section of a Douglas Fir log. This section was displayed at a recently held Railway Appliance exhibit at Chicago by the West Coast Lumber- men's Association of Oregon and Washington and created a great deal of interest, not only on account of the unique nature of the exhibit, but also of its educational value. Few, although familiar with the manufactured products,, scarcely conceived that timber grew in such quality and size as to secure the various grades and class of lumber from a single log. This was secured by taking a section of the log, it being about 48 inches in diameter and bandsawing the same into the various pieces as marked. The whole was re-assembled and shows how the log would be graded and sawn in the usual process of manufacturing in the regular way. ^ It is interesting to note the product of the log and from which portion of same, the various grades and kinds of lumber are obtained. It will be observed that securing almost every class of material is the result of proper grading and saving the log by experienced saw- yers and others. Starting with the slab, this stock is sorted as to quality and size, some going into ordinary fuel, the desirable and suitable being passed on to the lath mill. After "slabbing" (as it is termed) one or more sides, we come to the "clear," used for "finish," such as casing and base; then a four or six inch cant to be resawn by a gang saw or other appliances in siding and flooring strips, the latter usually "turned down" and producing vertical grain lumber and in some cases, ten and twelve inches thick for high grade vertical grain stepping. Proceeding further with the cut by constant turning of the log and approaching the heart, the "select" and "merchantable" grades of ship-barge and car materials are obtained. Between the remaining

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