Fire Door Inspection Checklist: What to Check and How

A fire door inspection checks every part of the assembly that lets the door hold back fire and smoke: the label, the door and frame, the hardware, the clearances, the seals and signage, and then whether the door actually closes and latches. In the US, NFPA 80 sets the method, and a qualified person has to carry it out and document it. The checklist below follows that order, so you can walk a building door by door and write down what you find.

TL;DR

• Check the label first. A missing or illegible label means the door cannot show its tested rating.
• Inspect the door, frame, hardware, clearances, seals and signage, then operate the door: it must close fully and latch every time.
• The bottom gap is ¾ in. at most, or 3/8 in. at most when the door bottom sits more than 38 in. above the floor. Measure on the pull side.
• NFPA 80 generally calls for an inspection at least once a year, done by a qualified person, with a signed written record kept for the authority having jurisdiction (AHJ).
• Never wedge or block a fire door open, and never swap hardware for parts that are not listed for that door.

Table of Contents

• What a fire door inspection covers
• Before you start
• The fire door inspection checklist
• Quick reference table
• Gap and clearance questions
• How often fire doors must be inspected
• What to record and what to do with defects
• Perspective
• Getting failed doors fixed
• FAQ
• Sources

What a fire door inspection covers

A fire door is not just a door. It is an assembly: door leaf, frame, hinges, closer, latch, seals, glazing and the label that proves it was tested together. If one part fails, the rating fails with it. Intertek notes that field issues such as worn hardware or improper replacements can compromise the whole fire-rated assembly.

The NFPA 80 inspection checklist for swinging doors groups the work into two kinds of checks:

• Visual checks: labels, surface condition, hardware, clearances, seals and signage.
• Operational checks: closing, latching and, on pairs of doors, coordinator function.

Both matter. A door can look perfect and still fail to latch, and a door that latches can still have a hole through the leaf.

Before you start

Gather three things so the walk-through produces a usable record instead of a pile of notes.

1. A door list. Give every fire door an ID number, then note its location, rating, and whether it is a single door or a pair. Sort by floor or stairwell so the route is efficient.
2. A tape measure or feeler gauges for gaps, plus a flashlight for hinges and the top edge of the leaf.
3. A blank form with a pass/fail column and a notes column for every item below. Add a field for the corrective action and the person responsible.

One more point before the first door: who is allowed to do this. NFPA’s fire door FAQ says NFPA 80 requires a qualified person, meaning someone with knowledge of the operating components of the specific door type. NFPA Technical Services adds that the building owner or a third party may do the inspection if they have that knowledge and are acceptable to the AHJ. If your in-house team does not have that knowledge on every door type in your portfolio, bring in someone who does.

The fire door inspection checklist

Work through each door in this order. Mark every item pass, fail or not applicable.

1. Label

Find the label on the edge of the door and on the frame. It should be present, visible and legible. NFPA explains that the label carries the manufacturer’s name, the third-party certification and the fire rating, and that it serves as proof of the assembly’s tested status. Labels that have been painted over, sanded off or cut away are a fail, because the door can no longer demonstrate what it is.

2. Door leaf and frame

Look at the whole surface, both faces and the edges.

• No holes, breaks or open penetrations through the leaf or frame.
• No visible warping, delamination or damage that could weaken the leaf.
• The frame is firmly anchored to the wall and is not bent or loose.
• Glazing, if present, is intact, and the glass and its frame look original rather than patched.

Holes are the most common find in busy buildings. Old cable runs, removed signs and hardware that was taken off and never replaced all leave openings.

3. Hinges

Check that every hinge is present, that screws are tight and none are missing, and that the door does not sag on its hinges. A sagging door drags on the floor or misses the strike, and it is often the first sign that a gap or latch problem is coming. The UK government’s fire door checklist also lists hinges, along with letterboxes and glazing. It is written for England, but the logic of checking each component carries over.

4. Closer and other hardware

Inspect the closer, latch, lockset, panic hardware, flush bolts and any other parts attached to the door. Look for loose fasteners, leaking closer fluid, missing arms and anything that has been added in the field.

Replacement parts deserve special attention. Intertek warns that incompatible or non-listed hardware can leave an opening that no longer matches its fire door listing. It also notes that new preparations outside NFPA 80 allowances need review by the listing agency. If someone cut a new hole for a lock or a viewer, record it and flag it for review.

5. Clearances and gaps

Gaps let heat and smoke through and can stop the door from latching. This is where most failures show up, so measure instead of eyeballing.

• Bottom gap: the NFPA 80 checklist sets a maximum of ¾ in. If the bottom of the door is more than 38 in. above the floor, the maximum is 3/8 in., or whatever the label service procedure says.
• Where to measure: NFPA’s checklist says clearances are checked on the pull side of the door.
• Side and top gaps: check them against the clearance limits printed on the same NFPA checklist, and note any spot where the gap is visibly uneven.

Uneven gaps on the latch side usually point to a bent door, a loose hinge or a settled frame.

6. Seals, gasketing and strips

If the door has intumescent or smoke seals, check that they are present all the way around, not painted over, torn, or pulled out of their channel. The UK checklist includes strips and seals where fitted. On US doors, seal requirements depend on the listing, so confirm what your door is supposed to have before you mark a missing seal as a pass.

7. Signage

Look for any required signage on the door, such as notices that the door must be kept closed. Faded, missing or contradictory signs are a fail. A sign saying the door must stay closed on a door propped open with a rubber wedge tells you exactly what happens in that building.

8. Close and latch test

Open the door fully, let go, and watch it.

• It should swing closed on its own, from the full open position, without help.
• It should close completely and the latch should engage every time.
• Run the test more than once. Intermittent latching is a fail.

Intertek explains why this matters: consistent closing and positive latching keep pressure from a fire from pushing the door open and bypassing the fire-resistance-rated system. Oklahoma State University’s fire door evaluation program ranks issues by severity to prioritize repairs, and it treats failures to close and latch as catastrophic safety risks. Use the same logic for your own repair order.

9. Pairs of doors and coordinators

On a pair of doors with a coordinator, confirm that the inactive leaf closes before the active leaf. The NFPA checklist calls this out specifically. If the order is wrong, the leaves can jam against each other and leave the opening unlatched.

10. Obstructions and door holds

Check that nothing blocks the swing: carts, stock, floor mats, a loose door stop. Check that the door is not held open with a wedge, a chair or a hook. NFPA states that blocking or wedging fire doors open is prohibited because it defeats the closing and operating features the door depends on. Doors that need to stay open for traffic need a listed hold-open device that releases on alarm, which is a project for a qualified contractor.

Quick reference table

Gap and clearance questions

Two questions come up repeatedly on site.

What is the maximum gap under a fire door? Under the NFPA 80 checklist, ¾ in. is the limit at the bottom. When the bottom of the door is more than 38 in. above the floor, the limit drops to 3/8 in. or whatever the label service procedure specifies. Measure on the pull side.

What about opening clearance? In practice, think of it as the space the door needs to swing freely and close completely. Anything that stops it from moving through its full travel is an obstruction, and anything that holds it open breaks the rules. Check the swing arc on both sides on every pass.

How often fire doors must be inspected

NFPA 80 generally calls for an inspection at least once a year, according to the research behind this guide. The annual inspection must be documented in a written record signed by the inspector and kept available for the AHJ. Your local fire marshal or code official is the AHJ and may require more, so confirm the schedule with them.

Some authorities do ask for more. For a sense of the range, the Monaghan Fire Authority in Ireland asks for fire door checks every six months, covering closing, self-closing devices, gap compliance and the condition of seals and hinges. That is Irish practice, not a US rule, but it shows why a quarterly or semiannual walk-through is a sensible habit between the formal annual inspections, especially in high-traffic retail and healthcare buildings.

What to record and what to do with defects

A checklist that is not kept is worth very little at an audit. For each door record:

• the door ID, location, rating and date inspected;
• pass or fail for each item;
• the details of any defect;
• the action taken or scheduled;
• the person responsible for the repair.

That last set is drawn from the Monaghan Fire Authority log book requirements, which say defects must be recorded with the issue, the action and the responsible person. Sign and date the report, and store it where your AHJ or insurer can ask for it. Your insurer may ask for it too: this overview of commercial real estate insurance requirements is useful when you are deciding what documentation to keep on file for the property.

Prioritize repairs by risk

Not every fail has the same weight. A practical order:

1. Doors that fail to close or latch. These come first.
2. Doors with holes, missing labels or non-listed hardware.
3. Gaps outside limits, damaged seals and loose hinges.
4. Signage and cosmetic items.

Do not repair a fire door with whatever is in the van. Use parts listed for that assembly, and send anything that involves new cuts or preparations to the listing agency for review.

Perspective

Most fire door failures we see in commercial buildings are maintenance problems, not design problems. A closer arm gets knocked loose, a tenant props a door open for deliveries, a contractor drills a new hole, and nobody writes it down. By the next inspection, three small issues have become a failed assembly.

That is why we like to treat doors as part of regular facility maintenance rather than a once a year scramble. When the same team handles door repair and hardware, handyman work, construction and emergency response under one contract, a failed latch found on a Tuesday is fixed by the same people who know the building, and the record of what was done stays in one place.

For multi-location operators and property managers, that also means one point of contact and one standard across every site. Our crews work across New York, New Jersey and Connecticut, and we support 24/7 emergency response when a door cannot be left unsecured overnight.

Nationwide Maintenance.

Getting failed doors fixed

Inspection finds the problem; the repair closes it. If your walk-through turns up sagging doors, failed closers or hardware that needs replacing, we handle commercial door repair and hardware across New York, New Jersey and Connecticut, and our facility maintenance program puts recurring door checks on the same schedule as the rest of your building.

For property managers with several buildings, our property management services bring cleaning, pest control, construction, landscaping and repairs under a single contract. If a door is failing right now, our 24-hour emergency services are available. Start at Nationwide Maintenance to describe your sites.

FAQ

What needs to be checked on a fire door?

Check the label, the door and frame for damage or holes, the hinges and hardware, the clearances, the seals and signage. Then test that the door closes fully from the open position and latches. On pairs with a coordinator, confirm the inactive leaf closes first.

How often do fire doors have to be inspected?

NFPA 80 generally calls for a minimum of one inspection a year, documented in a signed written record kept for the authority having jurisdiction. Your local AHJ can set a stricter schedule, so confirm it with your fire marshal or code official.

Who can perform a fire door inspection?

A qualified person with knowledge of the operating components and the type of door being inspected. NFPA Technical Services says the building owner or a third party can do it if they have that knowledge and the AHJ accepts them.

What is the maximum gap under a fire door?

The NFPA 80 swinging door checklist gives ¾ in. at the bottom. If the bottom of the door is more than 38 in. above the floor, the limit is 3/8 in. or as given in the label service procedure. Measure on the pull side.

Can a fire door be propped open?

No. Wedging or blocking a fire door open is prohibited because it defeats the closing and latching features. If a door needs to stay open, it needs a listed hold-open device installed by a qualified contractor.

Sources

• NFPA 80 inspection checklist for swinging doors
• NFPA: Fire Doors and NFPA 80 FAQs
• Intertek: Fire Doors Get Used Every Day
• GOV.UK: Fire doors checklist
• Monaghan Fire Authority: Fire Safety Register Log Book 2025
• Oklahoma State University: Fire Door Evaluation Program

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