Fire Door Technology & Certifications | Miami-Dade & Florida Code

Every fire-rated door system Apex Fire Doors supplies from our Miami facility, including hollow metal, solid core wood, and fire rated glass, meets recognized U.S. fire safety standards and Miami-Dade code requirements. In addition, an independent third party lists and labels each system, so the rating is never just a manufacturer’s claim.

Certified Across Our Product Lines

Hollow Metal Fire Doors

Underwriters Laboratories lists our hollow metal door and frame assemblies under UL 10B and UL 10C, and they meet NFPA 80 requirements for fire door assemblies.

Solid Core Wood Fire Doors

Our solid core wood doors conform to WDMA Industry Standard I.S. 1-A. Underwriters Laboratories also lists them under UL 10B and UL 10C, and they meet NFPA 80 requirements for fire door assemblies.

Fire Rated Glass Systems

Apex Fire Doors is a certified partner for Tecfire fire rated glass and steel door systems. These systems hold their rating under real fire and hose stream testing conditions, not just calculated design values. As a result, Apex works directly with Tecfire on specification, ordering, and technical support for every project.

Certifications & Testing Standards, Explained

UL 10C and UL 10B

Underwriters Laboratories standards for fire tests of door assemblies. UL 10C adds a hose stream test after the fire exposure, confirming the door assembly holds together under thermal shock and water pressure immediately after burning, not just during the fire test itself.

NFPA 252

The National Fire Protection Association’s standard fire test method for door assemblies, closely aligned with UL 10C. This is the test method most local building codes reference directly.

ANSI Z97.1

The American National Standards Institute’s safety standard for architectural glazing, covering impact resistance so glass in a door does not become a hazard on breakage.

Intertek Listed and Labeled

Intertek is a third party testing and certification body. For a Listed and Labeled product, an independent lab has tested it against the applicable standard, and it carries a physical label on the door confirming its rating. Inspectors and Authorities Having Jurisdiction can verify that label on site.

Hose Stream Tested

After the fire exposure portion of a test, technicians immediately subject the assembly to a high pressure water stream. This step simulates firefighting conditions and confirms the door will not fail from thermal shock right after a fire.

What the Fire Rating Number Means

A door’s fire rating, 45, 60, or 90 minutes, shows how long the assembly can contain fire and smoke and maintain structural integrity under standardized test conditions. The wall assembly and the use of the space determine the correct rating for a given opening, and your local Authority Having Jurisdiction (AHJ) ultimately confirms it.

Interior and Exterior Use

These fire rated door systems are for interior use in Florida and in any other state or jurisdiction that requires hurricane or impact approval for exterior openings. However, exterior use is available in states and jurisdictions where local code allows it. Confirm applicability for your specific project and location before specifying.

Frequently Asked Questions

What is the difference between UL 10C and NFPA 252?

They are closely related fire door test standards from different organizations. Manufacturers test and list most modern door assemblies to both, and most building codes accept either.

Does a higher minute rating mean a stronger or safer door?

It means the assembly can contain fire and smoke for longer under the standardized test. Code and your local AHJ set the correct rating for your opening based on the wall assembly and occupancy, not by choosing the highest number available.

How do I confirm a door’s listing in the field?

Every Listed and Labeled door carries a permanent label, typically on the hinge edge, showing the certifying body, the rating, and other identifying information an inspector can verify on site.

This page provides general information about fire door certifications and standards and is not code compliance advice. Therefore, confirm specific requirements for your project with your local Authority Having Jurisdiction.

Have a Project That Needs Certified Fire Doors?

Contact Apex Fire Doors to discuss specification and certification requirements for your project.