Lumber Suppliers
http://www.lumbermens.net
http://www.idapac.com/
http://www.cudahylumber.com/
http://www.adobelumber.com/
http://renolumber.com/

Lumber Information
http://www.apawood.org/
WIPE Douglas Fir and Western Larch Species Facts
WWPA
WWPA Hem-Fir Species Facts
APA, The Engineered Wood Association-Frequently Asked Questions
All Weather Wood Treaters
James Hardie Building Products
Trus Joist
Western Wood Preservers Institute (WWPI)
American Wood Preservers Association (AWPA)
American Wood Preservers Institute (AWPI)
Composite Panel Assoc.
http://www.smartwood.org
West Coast Lumber Inspection Bureau
Western Red Cedar Assoc
Pressure treated wood

Glu-Lamianted Beams , IJOIST and Roof Truss Suppliers, Hangers and connector plates technical information.
http://www.ilevel.com
http://www.uspconnectors.com/pdfs/trusjoistguide945.pdf
http://www.weyerhaeuser.com/
http://www.paccoast.com/default.jsp (Anderson Wall and Anderson roof trusses )
http://www.bcitruss.com/
http://www.truswal.com/
http://www.tpinst.org/
http://www.sbcindustry.com/
http://www.nationalbuildingsystems.com/
www.califdir.com/laminated--anaheim
http://www.trutrus.com/portal/RecentNews/tabid/56/Default.aspx
http://www.standardstructures.com/
http://www.ssispec.com/

Hardware and Anchor Tie Down Systems
http://www.strongtie.com/products/ATS/ats-software.html
http://www.orcousa.com/
http://www.whitecapdirect.com/store/catalog_request.jsp
http://www.uspconnectors.com/pdfs/trusjoistguide945.pdf