NFPA Sprinkler Cheatsheet (2025 Edition)

By Sunwoo Kim • Published 11/24/2025

NFPA 13 vs. NFPA 13R vs. NFPA 13D, Based on the MeyerFire 2025 Update This is your fast, field-ready breakdown of the differences between NFPA 13, NFPA 13R, and NFPA 13D—pulled directly from the MeyerFire 2025 summary sheets. Use this as a design-phase quick guide or a permit-set reference when selecting the correct sprinkler standard.