You are here: Home
/ Publication Information
Title: Quality Characteristics of Appalachian Red Oak Lumber
Author: Wiedenbeck, Janice K; Gatchell, Charles J.; Walker, Elizabeth S.;
Source: Forest Products Journal. 45(3): 45-50.
Publication Series: Miscellaneous Publication
Description: Red oak lumber defect information derived from a well-constructed board data bank was analyzed. The potential utility of No. 1 Common and No. 2A Common lumber is indicated by the finding that 23 percent of the No. 1 Common boards and 35 percent of the No. 2A Common boards in the data bank contain clear-face cutting percentages that meet the minimum requirement for the next higher grade. The mean surface measure of the FAS, Selects, No. 1 Common, and No. 2A Common lumber was 9.1, 7.5, 6.3, and 6.2, respectively. The mean defect areas for each grade were: FAS - 1.2 percent, Selects - 2.3 percent, No. 1 Common - 6.8 percent, and No. 2A Common - 9.8 percent. Approximately 89 percent of the total defect area in these boards consisted of unsound defects. Wane, unsound knots, and bark pockets are the three major defects found in red oak lumber. Between grades, there are significant differences in the occurrence of these defects. Pith is relatively uncommon in Common-grade lumber, occurring in 9 percent of the No. 1 Common boards and 19 percent of the No. 2A Common boards. Twenty-five percent of the No. 1 Common and No. 2A Common boards contained crook of 1/2 inch or more.
- 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.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Wiedenbeck, Janice K; Gatchell, Charles J.; Walker, Elizabeth S. 1995. Quality Characteristics of Appalachian Red Oak Lumber. Forest Products Journal. 45(3): 45-50.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility