Organizations 

• Associated Builders and Contractors
• California Redwood Association
• Canadian Wood Council - see span calculator
• NAHB.National Association of Home Builders
• National Association of Home Builders
• National Institute of Building Science
• Temperate Forest Foundation
• Wood Moulding and Millwork Producers Assocation

Grading Associations

• APA:  The Engineered Wood Association
• WWPA:  Western Wood Products Association
• WCLIB:  West Coast Lumber Inspection Bureau
• AFPA:  Alberta Forest Products Association
• SPIB:  Southern Pine Inspection Bureau

Railroads

• Union Pacific Railroad
• Burlington Northern Santa Fe Railroad
• Steelroads Rail Tracking

Publications

• Builder Magazine OnLine
• Home Energy magazine
• Random Lengths The source for information on Forest Products markets

Builder Search Engines

• Building Industry Exchange
• Building OnLine Search Engine. Contains many building materials and wood related sites.  

Safety

• OSHA Occupational Safety & Health Administration

Product Information

• Builders Hardware Manufacturers Association  
• 4specs Internet Directory for Specified construction Products

Codes & Standards Organizations

• American With Disabilities Act Accessibility info
• ANSI. American National Standards Institute
• BOCA. Building Officials and Code Administrators
• Building Material Codes
• CABO. Council of American Building Officials
• ICBO International Conference of Building Officials
• NCSBCS National Conference of States on Building Codes and Standards

Sister Companies of Pro-Build

• Manhattan Construction Company
• OAI Electronics

Federal Web Sites

• Forms Tax forms and publications
• HUD Dept. of Housing and Urban Development
• NIST. National Institute of Standards and Technology
• The Access Board. The US Architectural and Transportation Barriers Compliance Board.
• FedWorld A comprehensive central access point for searching, locating, ordering and acquiring government and business information.

Media Links

• The Tulsa World