Prefabricated Wood I-Joists

Benefits & Guidelines

The Wood I-Joist Manufacturers Association (WIJMA) is a nonprofit organization dedicated to promoting the improvement and increased use of prefabricated I-joists.
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Product Description

Information about the properties and uses of wood I-joists

Residential Details

View and download individual floor and roof details for your use.
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Policies & Publications

Design guidelines prepared by WIJMA.
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Industry Links

A list of relevant links related to wood construction products and construction.

Environmental Impact

Effects of wood production on the environment.


Benefits and reasons to use prefabricated wood I-joists

Visit our Members Page for a list of member companies and information on how to become a member of WIJMA