Making the Grade with Domestic and Imported Lumber

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The recent import tariffs on lumber from Canada have generated higher interest among many builders in importing lumber from other countries that may or may not have properly graded the imported wood for structural use. Grading and inspection agencies accredited by the American Lumber Standard Committee (ALSC) develop lumber design values and provide grade stamps that assure builders and building officials that the lumber they are using has the desired structural properties. This webinar replay will provide an overview of the ALSC, its activities, and the lumber grading process, including how lumber from both the U.S. and Canada is graded, as well as how lumber imported from outside North America can be graded for use under U.S. building codes and standards.

Participants in this webinar replay will:

Review the history of the American Lumber Standard Committee, its makeup and its activities
Examine the process by which lumber is graded for structural purposes and how design values are determined
Explore how lumber imported from outside North America can be evaluated and graded for use in buildings constructed to the International Building Code and International Residential Code

Speaker: David E. Kretschmann, President, American Lumber Standard Committee

NAHB Continuing Education: 1.0 hours of continuing education credits for the following 12 designations - CAPS, CGA, CGB, CGP, CGR, CMP, CSP, GMB, GMR, Master CGP, Master CSP, MIRM

Cancellation and Refund Policy: No refunds are issued for webinar replays upon purchase. However, NAHB regularly reviews these products and reserves the right to remove replays that are no longer current. If you are unable to view a replay during your 12-month access period, please contact Deborah Krat at EdWebinars@nahb.org.

David Kretschmann

President, American Lumber Standard committee

In November of 2016 I was elected President of the American Lumber Standard Committee. I the chief executive officer and oversee the day to day operations of the American Lumber Standard Committee. Prior to this position I had 30 years of experience as a research engineer in the Engineering Properties of Wood, Wood Based Materials and Structures research work unit at the USDA Forest Products Laboratory. I worked in the area of In-grade testing, juvenile wood research, and fundamental property relationships. I was responsible for conducting research directly related to safe wood products utilization, including: the effects of juvenile wood on physical and mechanical properties of solid and composite lumber, ways of monitoring structural lumber properties for change, finding innovative uses of forest thinning, improving the durability of wooden baseball bats, and modeling the impacts of cell structure on the physical and mechanical properties of solid and composite lumber.