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AFA Newsroom Article [Comprehensive Testing] 8-1-12 Atr10
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Comprehensive Testing of Southern Pine Lumber Completed
Preliminary Analysis Suggests Smaller Reductions than originally Projected

The latest full In-grade testing matrix for visually graded Southern Pine Dimension lumber has been completed by the Southern Pine Inspection Bureau (SPIB) in cooperation with Timber Products Inspection and others. In a two-step process, more than 7,400 full-size samples of commercially-produced Southern Pine were destructively tested.
 
As the first step, No.2 2X4s were tested which resulted in new design values for Southern Pine sized 2" to 4" thick in No.2 Dense and lower grades on an interim basis; new design values for only those sizes and grades became effective June 1, 2012, pending the potential for slight adjustments based on results from additional testing in step two.  

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