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RE: Southern Pine / Pressure Treated

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Eli, did you mean (IBC2000) 2304.11 for the first section?  JPRiley




IBC section 2303.4.11 answers your first question, and 2303.1.8.2 answers your second question.  PT wood (or any wood for that matter) should only be above 19% MC if it will be allowed to dry on site during construction before being covered up in the wall.  I think there are some technical requirements for what “field drying” really entails. 


~~ Eli Grassley


-----Original Message-----
From: Sharon Robertson [mailto:sharon(--nospam--at)]
Sent: Tuesday, March 08, 2005 3:53 PM
To: seaint(--nospam--at)
Subject: Southern Pine / Pressure Treated




I am working on a project in Texas using Southern Pine.  The specifications note that all lumber except pressure-treated shall contain not more than 19% moisture content.  My questions are:

·         Does Southern Pine require pressure treatment for uses like ledgers bolted to concrete or masonry, sole plates, etc.?

·         If yes, why do you suppose it would be exempt from the stated 19% moisture content limit? 


Sharon Robertson, PE
Arcon Engineers 
5625 Ruffin Road, Suite 130 
San Diego, CA  92123
858/503-7858 fax

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