Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Scott Leavengood; Larry Swan
    Date: 1999
    Source: Gen. Tech. Rep. PNW-GTR-475. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p
    Publication Series: General Technical Report (GTR)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (58 KB)

    Description

    Drying tests and trials for western juniper (Juniperus occidentalis Hook.) were conducted between 1993 and 1996 to (1) test and refine existing dry kiln schedules; (2) develop moisture meter correction factors; (3) test dry western juniper in different types of kilns, both by itself and with ponderosa pine (Pinus ponderosa Dougl. ex Laws.); (4) explore alternative drying techniques to minimize splitting and warping caused by inherent growth stresses; and (5) test a "saw-dry-rip" program currently used in the hardwood industry to reduce splitting and cracking. Test results over a 3-year period revealed that checking and splitting in juniper can be reduced by (1) careful selection of logs to minimize large knots, spiral grain, and excessive taper; (2) careful treatment of logs after harvest, such as end-coating and sawing logs as soon as possible after felling; (3) minimizing material with large knots (over one-half inch) and pith; (4) drying thinner and shorter boards; (5) using moderate kiln schedules (lower initial temperatures, higher initial relative humidities, and longer times); and (6) finger jointing and emphasizing products that require shorter and thinner lumber than that commonly produced in the Pacific Northwest.

    Publication Notes

    • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Leavengood, Scott; Swan, Larry. 1999. Western juniper drying project summaries, 1993-96. Gen. Tech. Rep. PNW-GTR-475. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p

    Cited

    Google Scholar

    Keywords

    Western juniper, drying, kiln drying, moisture loss

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/2967