The Wood I-Joist Manufacturers Association (WIJMA) is a nonprofit organization dedicated to promoting the improvement and increased use of prefabricated I-joists.
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.
Policies & Publications
Design guidelines prepared by WIJMA.
Industry Links
A list of relevant links related to wood construction products and construction.
Environmental Impact
Effects of wood production on the environment.
Benefits
Benefits and reasons to use prefabricated wood I-joists