Tag Archives: Wood I-Joists

DCA3: Designing fire-rated I-joist assemblies

For years, Design for Code Acceptance #3 (DCA3) has been the go-to resource for anyone working with I-joist assemblies. I-joist (WIJ) assemblies were added to DCA3 in 2001 and were intended to promote the usage of engineered lumber by simplifying the associated design, specification, and permitting processes.

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