The St. Louis metro spans two states with separate building code frameworks. Projects on the Missouri side are governed by locally adopted building codes based on the International Building Code. Projects on the Missouri side are governed by the Missouri building code, also based on the International Building Code, along with the Missouri Accessibility Code. Fire-rated openings in both states require labeled assemblies where the door, frame, and hardware carry compatible ratings. Common fire ratings for commercial projects range from 20-minute to 3-hour assemblies, depending on the opening’s location within the building and the occupancy classification.
Accessibility requirements based on ADA standards apply to commercial openings throughout the St. Louis metro. Hardware mounting heights, door clearances, and closer adjustments must meet applicable accessibility criteria in the project’s jurisdiction. Industrial, manufacturing, warehousing, distribution, healthcare, and education projects across the bi-state region frequently involve multiple opening types with varying fire rating and accessibility requirements within a single facility.
When configuring fire-rated assemblies in ProBuilder, door, frame, and hardware components are organized by compatible rating. ProBuilder shows compatible hardware options for the selected fire rating, helping coordinate label requirements across the assembly. Consult with the project’s design professional for final compliance verification. The Authority Having Jurisdiction (AHJ) makes final compliance determinations.
Verify all code requirements with project specifications and the Authority Having Jurisdiction (AHJ).
