SPIB Addresses Questions about New Design Values

February 2nd, 2012 by DWM Magazine

The recent approval of the Southern Pine Inspection Bureau’s (SPIB) new design values for visually graded Southern Pine lumber by the American Lumber Standard Committee (ALSC) Board of Review has generated more questions among producers and customer groups, according to a recent announcement.

The Southern Forest Products Association (SFPA) facilitated a task group of industry leaders representing key customer groups to develop answers to the most commonly asked questions regarding new design values and their implementation. This new collection of questions and answers is now available at www.southernpine.com.

SPIB announced it also issued Supplement No.9 to the 2002 Standard Grading Rules for Southern Pine Lumber providing new design values effective June 1, 2012. The group reports that the only design values that will change on June 1 apply to visually graded Southern Pine and Mixed Southern Pine sized 2 inches to 4 inches wide and 2 inches to 4 inches thick (2x2s through 4x4s) in No.2 and lower grades (No.2, No.3, Stud, Construction, Standard and Utility).

In addition, the new website features a helpful table that lists the new design values for Southern Pine and Mixed Southern Pine, effective June 1, 2012. The site provides answers to questions addressing transition issues, how to obtain similar load-carrying capabilities and why only some grades and sizes are affected at this time. More than two dozen questions are answered in this updated collection, including a supplemental set of questions with answers providing important background information on this issue.

“The effective date of June 1 allows for an orderly transition to the new design values,” says Cathy Kaake, SFPA’s senior director of engineered and framing markets. “These answers address the most common questions raised since the ALSC’s decision earlier this month,” she adds.

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