APA System Reports®

APA System Reports® are technical reports published to help building officials and design professionals identify innovative design solutions by evaluating engineered wood systems that can be used as code-compliant systems. They are developed based on extensive research conducted by APA, frequently in collaboration with other reputable agencies in the specific field of studies. APA System Reports are supported by comprehensive research data, as indicated in each report, and can be adopted by designers and regulatory agencies with confidence.

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APA System Report 405: Fire Protection of Floors Constructed with Prefabricated Wood I-Joists...
SR-405
APA System Report 405: Fire Protection of Floors Constructed with Prefabricated Wood I-Joists...

This APA System Report provides prescriptive fire assemblies for fire protection of floors constructed with prefabricated wood I-joists that comply with 2021, 2018 and 2015 IRC Sections R502.1.2 & R302.13 and 2012 IRC Section R501.3. Revised January 2024

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