Skip to Main Content
Lumber and veneer recovery from intensively managed young-growth Douglas-fir.Author(s): Thomas D. Fahey; James M. Cahill; Thomas A. Snellgrove; Linda S. Heath
Source: Res. Pap. PNW-RP-437. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 25 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
View PDF (1.99 MB)
DescriptionThe objective of the study was to develop models that predict lumber and veneer recovery as a function of young-growth log characteristics. Empirical lumber and veneer recovery data for logs cut from more than 300 young-growth Douglas-fir trees were used in model development. Trees were sampled from 15 stands in western Oregon and Washington and represent a wide range of growing conditions, sites, ages, and stocking history. Models were developed that predict (1) the volume recovery of primary (lumber and veneer) and secondary (chips, sawdust, and peeler cores) products, (2) lumber grade recovery based on machine stress-rated rules, (3) lumber grade recovery based on visual grading rules, and (4) veneer grade recovery. Log characteristics investigated were log diameter, the proportion of juvenile wood present in the log, log taper, and limb size. Lumber degrade caused by warping of juvenile wood was evaluated for low temperature, low humidity, kiln schedule.
- You may send email to email@example.com 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.
CitationFahey, Thomas D.; Cahill, James M.; Snellgrove, Thomas A.; Heath, Linda S. 1991. Lumber and veneer recovery from intensively managed young-growth Douglas-fir. Res. Pap. PNW-RP-437. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 25 p
KeywordsDouglas-fir, young-growth, juvenile wood, lumber volume recovery, lumber grade yields, wood strength, machine grading, veneer volume recovery, veneer grade yields, Washington, Oregon
- Lumber recovery from ponderosa pine in northern California.
- Development of a 3D log sawing optimization system for small sawmills in central Appalachia, US
- Log and lumber grades as indicators of wood quality in 20- to 100-year-old Douglas-fir trees from thinned and unthinned stands.
XML: View XML