Standard on Types of Building Construction
The next edition of this standard is now open for Public Input (formerly proposals).
What is NFPA 220?
This standard promotes protection from fire and its associated hazards by defining types of building construction based on the combustibility and the fire resistance rating of their structural elements. It is an extract document of Section 7.2 NFPA 5000®: Building Construction and Safety Code®.
Official document scope
What does NFPA 220 address?
Requirements pertain to construction assemblies and fire resistance ratings for Types I, II, III, IV, and V construction. Structural elements include exterior bearing walls; interior bearing walls; columns; beams, girders, trusses, and arches; floor-ceiling assemblies; and roof-ceiling assemblies.