They Don’t Make ‘Em Like They Used To – Update #1
An Update on Southern Pine Design Values
A statement released on April 2, 2012 states that the American Lumber Standard Committee (ALSC) Board of Review has approved changes to the design values for 2″- 4″ thick, 2″- 4″ wide, Southern Pine #2 Dense and 2×4 Mixed Southern Pine #2 and all lower grades (i.e. #3, Stud, Construction, Standard, and Utility). They have published an addendum to the NDS Design Values for Wood Construction that provides design values for these sizes and grades of Southern Pine and Mixed Southern Pine to use with the 2012 NDS, 2005 NDS, and the 2001 NDS.
The values for other sized lumber is still being tested. Expectations are that the results will be published in September 2012. In the interim, the Projected Design Values previously issued by the Southern Pine Inspection Bureau (SPIB) Board of Governors are available for use. SPIB believes that these values will be the end-result of their testing. SPIB states that these are not actual design values.
Stay tuned, more updates coming.