Fire doors are critical components of building safety, designed to contain fire and smoke, limit damage, provide safe egress, and protect occupants during emergencies. For building owners, facility managers, safety professionals, and inspectors, a comprehensive understanding of fire door inspection criteria is essential to ensure these assemblies continue to function effectively over time.

The regulatory framework guiding fire door inspection is well defined. Both the International Fire Code (IFC) and the Life Safety Code (NFPA 101) reference NFPA 80, the Standard for Fire Doors and Other Opening Protectives, which establishes rigorous requirements for inspection, testing and maintenance throughout the life of the building. In addition, the International Building Code (IBC) requires fire door assemblies to be installed in accordance with NFPA 80.  According to NFPA 80, fire doors must undergo initial inspection after installation, reinspection following any repairs or modifications, and annual inspections thereafter. These steps are designed to identify and rectify problems that could compromise the door’s ability to close fully, latch correctly, and block the passage of fire and smoke.

NFPA 80 specifies 13 inspection criteria that cover everything from label legibility and physical condition to operational performance and acceptable hardware components. Keeping these criteria front and center enables those responsible for fire door maintenance to systematically evaluate the integrity of fire door assemblies and take corrective action before emergencies occur.

1. Labels must be present and legible.

Labels show manufacturer, test lab/certification, compliance and hourly rating. They are typically located between the upper and middle hinge (or alternate top edge). Labels must remain readable and not be removed or painted over in a way that makes them illegible.

2. No holes or breaks in the doors and frame.

Some holes (for hardware or testing) are allowed if per UL listing and manufacturer instructions. Unapproved holes or damage must be properly repaired using tested materials. Simply covering holes isn’t enough, as it may compromise fire protection. Always verify repairs meet NFPA 80 standards.

3. Glazing, vision light frames and glazing beads are intact and securely fastened in place, if so equipped.

Glazing is a common failure point. Confirm the glazing is the rated type, that beads and frames are in place, and that there are no cracks or loose stops. Loose or non‑rated glazing compromises the entire assembly and must be corrected.

4. The door, frame, hinges, hardware, and noncombustible threshold are secured, aligned and in working order with no visible signs of damage.

A fire door in proper working order is one that operates as intended—closing fully and latching without obstruction. This includes the door and its hardware, such as hinges, latches, and closers, functioning correctly and without damage or misalignment. Proper operation ensures that in case of a fire, the door will effectively contain flames and smoke, deterring their spread and helping to protect the means of egress.

5. No parts are missing or broken.

Small parts matter: hinges, latches, spacers, gasketing, or closers—play a crucial role in ensuring the door functions as designed. Missing or damaged parts can cause the door to fail to close or latch properly, compromising its ability to contain fire and smoke. A methodical check for every required component prevents findings that are easy to avoid with routine maintenance.

6. Door clearances do not exceed clearances listed in NFPA 80.

Incorrect door clearances are one of the most common failures found during fire door inspection. NFPA 80 (2025) limits head/jamb/meeting‑stile gaps for hollow metal doors and 20-minute doors in hollow metal frames to a maximum of 3/16-inch, with wood doors rated greater than 20 minutes having a maximum clearance of 1/8-inch. Clearance at the bottom of a fire door is limited to 3/4-inch. Small variances can put an assembly out of compliance; common remedies include rehanging or shimming hinges and installing listed edge‑protection or bottom devices (or thresholds, mindful of accessibility requirements) where permitted.

7. The self-closing device is operational; that is, the active door completely closes when operated from the full open position.

Operate the door and watch it close fully and latch. Closer faults (worn parts, leaks, misadjustment) are frequent, and the self‑closing function must never be defeated. Adjust or repair closers so operation is reliable and smooth.

8. If a coordinator is installed, the inactive leaf closes before the active leaf.

On pairs equipped with certain types of hardware, sequencing matters; the inactive leaf must seat before the active leaf for proper latching. Cycle paired doors several times to verify the coordinator timing and correct any misadjustment.

9. Latching hardware operates and secures the door when it is in the closed position.

A door that doesn’t latch doesn’t provide the required protection against the pressures encountered during a fire. Test latch engagement and strike alignment under normal closing forces; misalignment or worn components should be remedied so the latch secures positively.

10. Auxiliary hardware items that interfere or prohibit operation are not installed on the door or frame.

Look for non‑listed additions—surface bolts, mechanical hold-open devices, extra locks—that prevent closure or latching. Such hardware must be removed or replaced with code‑compliant options; any auxiliary device should never impair the listed assembly.

11. No field modifications to the door assembly have been performed that void the label.

Field alterations—oversized cutouts, unlisted hardware, structural changes—can void the label. If modifications exist, document them and consult the AHJ; repairs should conform to the listing or an approved repair procedure.

12. Meeting edge protection, gasketing, and edge seals, where required, are inspected to verify their presence and integrity.

Perimeter seals and edge protection are essential for smoke control and are required by code for certain door locations. Inspect gasketing and edge seals for compression, tears, or missing sections and ensure replacements match the listing. Damaged seals are a frequent cause of failures.

13. Signage affixed to a door meets the requirements listed in NFPA 80.

When signage is installed on a fire door, the NFPA 80 standard includes restrictions related to the size, material, and attachment method used. These requirements must be followed to ensure that signage does not negatively impact the performance of the fire door assembly.

Conclusion

Fire door inspections are a foundational element of any building’s fire prevention and life safety program. By adhering to the 13 detailed criteria outlined in NFPA 80, building owners and facility managers can better ensure that fire doors remain reliable barriers against the spread of flame and smoke. This not only helps protect lives and property during a fire event but also meets the requirements set forth by model and local codes.

Documentation is critical to a successful fire door inspection program. NFPA 80 mandates that inspection reports include comprehensive information including the date of inspection, facility and inspector details, a unique record for each fire door assembly evaluated, and a description of any deficiencies discovered. Thorough and accurate recordkeeping streamlines the Authority Having Jurisdiction’s (AHJ) review process and supports ongoing compliance in the face of periodic audits or insurance inspections, and many facilities are turning to fire door inspection software to support this.

These tools not only simplify record management but also improve scheduling, tracking, and reporting, enabling stakeholders to maintain their fire protection systems at peak readiness. Ultimately, proactive and informed fire door maintenance backed by diligent inspection protocols is an indispensable part of safeguarding any building and its occupants from fire hazards.