i-bor

framinq in Hawaii.

- i{i-bor' trealed wood resists attack by Foimosan and

SP Design Values Go into Effect

Effective June I, it's important for lumber dealers to understand that some-not all-grades and sizes of visually graded southern pine now have new design values. Earlier this year, American Lumber Standard Committee's Board of Review approved the design values changes submitted by the grading rules-writing agency, the Southern Pine Inspection Bureau.

The only design values that changed on June I apply to visually graded Southern Pine and Mixed Southern Pine sized 2" to 4" wide and 2" to 4" thick (2x2s through 4x4s) in No. 2 and lower grades (No.2, No. 3, Stud, Construction, Standard and Utility). This also includes new design values for No. 2 Dense and No. 2 NonDense Southern Pine.

Design values for all other grades and sizes of visually graded southern pine remain the same, pending results of testing scheduled for completion later this year. As a result, SPIB issued Supplement No. 9 to the 2OO2 Standard Grading Rules for Southern Pine Lumber providing the new design values, effective June 1, 2012.