Florida's statewide product certification system. Every window, door, and shutter installed in Florida needs an FL number to prove it can handle our wind loads.
FL approvals cover different product types with specific wind load testing requirements.
Impact and non-impact rated windows tested per ASTM E1886/E1996 for wind pressure and debris impact.
Windows must meet positive and negative pressure requirements based on ASCE 7-22 wind maps. Typical ratings: DP-40 to DP-75 PSF.
Hinged entry systems including sidelites and transoms, tested as complete assemblies.
Entry door systems require complete assembly testing including hardware, weatherstripping, and all glazing components for accurate wind load certification.
Multi-panel sliding and lift-slide systems with track reinforcement requirements.
Sliding systems must demonstrate track anchorage and panel interlock integrity under cyclic pressure testing at 1.5x design pressure.
Hurricane shutters including accordion, roll-down, Bahama, and colonial styles.
Shutters provide opening protection without replacing windows. Must cover complete opening and be tested for the protected product's pressure rating.
Understanding when you need which certification for your wind load requirements.
Always verify product approvals before specifying for permit submissions.
Find the FL product approval number on product labels, specification sheets, or manufacturer documentation. Format: FL#####-R#
Go to the Florida Building Commission's official product approval search system.
Enter the complete FL number including revision. The system will show the full approval document with all tested configurations.
Check the design pressure ratings, tested sizes, installation requirements, and expiration date. Ensure values meet your wind load calculations.
Verify the approval hasn't expired and the product line hasn't been withdrawn. Only active approvals are valid for permit applications.
Common questions about FL product approval numbers.
Match FL-approved products to your exact pressure requirements with instant calculations.