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Structural Design Criteria for
Southern Pine Lumber
Tomas Orihuela, P.E.
Overview
Southern Pine, also known as Southern Yellow Pine, is widely available and is
highly desirable for design not only because of its inherent high strength and
durability but also for its treatability and beauty. The design values of
Southern Pile are among the highest of all softwood species. Southern Pine’s
durability makes its use suitable for flooring, decks, boardwalks, and other
high-traffic applications since it is highly resistant to wear.
Building codes require that pressure treated wood be used in many situations
including wood contacting concrete in contact with soil or wood in direct
contact with soil. Due to its unique cellular structure, Southern Pine can be
treated with preservatives deeply and uniformly in the lumber. About 40% of all
Southern Pine lumber produced is now pressure treated with preservatives to
increase its longevity and design versatility.
In this course, the student will review the Southern Pine Council’s publication
“Southern Pine Use Guide” 2003 Edition. The referenced document is reproduced
by permission of the Southern Pine Council.
The
student must take a multiple-choice quiz consisting of twenty (20) questions at the end of this course
to earn PDH credits.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills:
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Standard Grades of
Southern Pine and associated design values
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Overview of design value
adjustment factors
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Standard sizes and
seasoning requirements of Southern Pine
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Pressure-treated lumber –
types of preservatives used, recommended retention levels, and building
code requirements
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Allowable floor joist and
rafter spans
Course
Click on the following PDF
attachment and review "Southern Pine Use Guide" published by the Southern Pine
Council prior to taking a quiz for credit. You will be quizzed on the document
on its entirety.
"Southern
Pine Use Guide" (1.5 MB)
Having Trouble Downloading the PDF File?
Right click on the link. Select "Save Target As..."
Then save on your desktop. To view the file, double click the icon on your
desktop and return to this page to take the quiz.
You may need Acrobat Reader to view this document.
Click on the link below to download a free copy of Acrobat Reader.
To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
(To take the quiz,
your web browser must be set to accept cookies. See how to
check your cookie settings.)
 
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