Anthony Forest Products Co.
http://www.anthonyforest.com/

Atlas Roofing
http://www.atlasroofing.com/

Coastal Plywood Company
http://www.coastalplywood.com/

EverGrain Composite Decking
http://www.evergrain.com/

GAF Materials Corporation
http://www.gaf.com/

Hoover Treated Wood Products Inc.
http://hooverfrtw.com/about/about.html

International Paper
http://www.internationalpaper.com/Wood/Wood.html

Johns Manville
http://www.jm.com/

Langboard Inc.
http://www.langboard.com/

LP Building Products
http://www.lpcorp.com/

Perma Products
http://www.permarproducts.com/

Plasticlad
http://www.plasticlad.com/

Simpson Strong-Tie
http://www.strongtie.com/

StoraEnso
http://www.storaenso.com/

Suntrellis
http://www.suntrellis.com/pressure_treated.html

Tamko Roofing Products
http://www.tamko.com/

Temple Inland
http://www.temple.com/

Tenon
http://www.tenonusa.com/

Timber Products Company
http://www.timberproducts.com/

Tolko Industries Ltd.
http://www.tolko.com/

TrimJoist Engineered Wood Products
http://www.trimjoist.com/

USG
http://www.usg.com/