Florida Building Code Binding Interpretation 318: Window and Door Replacements in Threshold Buildings Require Threshold Inspections

Sat, 18 Apr 2026 18:00:00 +0000
Construction

The Florida Building Commission, Florida Department of Business and Professional Regulation, and Building Officials Association of Florida issued Binding Interpretation 318 on January 26, 2026, clarifying that replacement of windows and doors in Threshold Buildings constitutes a modification of the building's structural system. Threshold Buildings are defined as buildings exceeding three stories or 50 feet in height, or assembly occupancies over 5,000 square feet with more than 500 occupants. Such replacements now require compliance with Section 110.8.1, including submission of a structural inspection plan at permitting and inspections by a certified Special Inspector. The interpretation is binding and not subject to local building official approval.