HomeKnowledgeIRC R502 — Wood Floor Framing
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IRC R502 — Wood Floor Framing

Updated Mar 26, 2026
Floor joist span tables based on species, grade, spacing, and dead/live loads. Drilling/notching limits (max D/3 notch, D/3 hole). Bearing requirements, bridging, and subfloor fastening schedules.
TAGS
IRCfloorjoistspan-tableframing
DETAILS
section
R502
category
IRC — Floor Framing
code body
IRC
code year
2024
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