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To use lumber in structural applications, construction professionals need information on the strength capabilities of various lumber grades. WWPA's Technical Services Division leads the industry in creating and distributing this technical information to professional users worldwide.
Architects, engineers, builders, code officials and others rely on WWPA data to select the right grade, strength value and fasteners for building with wood.
The Association's technical activities are carried out by lumber technical experts stationed at the WWPA headquarters in Portland, Ore. These experts are available to educate key audiences on how to properly specify and use Western lumber.
Association Technical Services activities include:
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Wood engineering data. Western lumber design values, design criteria, loading data and span tables have been developed through WWPA's wood engineering research. This important information is published in a number of technical publications which have become standard reference tools for those who design and build with wood.
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Code and regulatory issues. WWPA regularly monitors developments in the building code, design and engineering fields can affect the future use of Western lumber in construction. This assures Association-published lumber technical information continues to meet design needs.
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Lumber Design Suite software for Excel
Download a design tool which works in Microsoft Excel that will provide calculations for Western lumber in beams, joists, posts, studs and single shear connections. It's all available in the new WWPA Design Suite, which can be downloaded from Online Lumber Technical Guide. (Free registration is required.)
Lumber and Mold
Information about mold on lumber is now available online in the WWPA Mold and Lumber section. You can review current information on mold and wood products and download digital publications.
Online Technical Guide
Find detailed technical information on lumber produced by WWPA mills in WWPA's Online Technical Guide. Once you complete the free registration, you can seach the guide, which includes sections on lumber grading basics, Western species and uses, lumber specifying, design values, shrinkage, MSR and finger-jointed lumber and lumber properties and spans.
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