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A fire door closes and latches properly when it shuts on its own from a full-open position and a partial opening, and its listed latch engages the strike without a push, a key, or other help. Check the actual latch—not just whether the leaf looks closed—and measure the gaps with a fire door gap gauge. The adopted code edition and the door assembly’s listing determine the exact clearance limits and inspection requirements.
This guide covers swinging fire doors with builders hardware in the United States. Rolling steel, coiling, sliding, and shutter assemblies use different tests. A quick check tells you whether a swinging door works now; it does not replace the written, door-by-door annual inspection required by NFPA 80.
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What does a proper close-and-latch check prove?
It confirms that the door can close without help and that its approved latching arrangement actually secures the leaf. A door resting against the frame or stop may look shut but still be unlatched. During a fire, that gap can let pressure push the door open.
In a typical single-leaf assembly, a spring latch enters a strike. Other listed arrangements are possible, including fire exit hardware. The label and listing for the assembly—not a generic hardware rule—identify the required setup. A roller catch, magnetic catch, or deadbolt that someone must throw is not a direct substitute for a self-latching device, as D&D Hardware explains.
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For a quick functional check, release the door and let it close unaided, then verify the latch holds. That is different from the annual NFPA 80 inspection: the annual inspection is a written record for each opening, completed by a qualified person. NFPA says fire doors are inspected immediately after initial installation and at least annually thereafter; they must remain operable, closed and latched, or arranged to close automatically during a fire. NFPA’s fire door FAQs also state that wedging or blocking a door open is prohibited.
How do I check whether a fire door closes and latches?
Work through the opening in this order. Keep hands away during the final part of each closing cycle; do not push the leaf or pull it into the frame to make it pass.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitches- Identify the door and frame. Find the labels, commonly on the hinge edge of the door and on the frame. Note the rating and any identifying information you can read. A missing, painted-over, or illegible label is a deficiency; do not scrape or repaint it as a fix. If you cannot read the label, do not guess the rating or allowable clearance.
- Clear the opening. Remove wedges, kick-down stops, chairs, boxes, chains, and tape that could block the leaf or cover the latch. A fire exit device that has been dogged where dogging is not permitted is a failure. A wedge is not an approved hold-open.
- Inspect the moving parts before cycling the door. Check that the closer arm is connected, the closer body is not leaking oil, hinge screws are present, and the strike is in place. Look for loose or broken hardware, a sagging leaf, and visible frame damage. A door that can be shoved shut is not compliant if required parts are missing or broken.
- Measure the gaps before judging the latch. On the pull side, use a fire door gap gauge at the head, hinge jamb, latch jamb, bottom, and meeting stile of a pair. Do not eyeball the gap: a gap that is too wide can let the bolt miss or barely catch, while a gap that is too tight can make the leaf drag and stop short. Compare readings with the adopted edition and the assembly’s listing.
- Release from full open. Open the active leaf fully, let go, and keep your hands off it through the last few inches. The door must travel to the closed position and latch without a nudge. The NFPA 80 inspection criterion quoted from the 2013 edition says the active door completely closes when operated from the full-open position. Lori Greene’s explanation of the closing cycle discusses this criterion alongside the other relevant provisions.
- Release from a partial opening. Repeat from a smaller angle, so momentum from a full swing is not doing the work. For spring hinges, NFPA 80 Annex A recommends adjusting for positive latching when the door closes freely from 30 degrees. A practical spot check includes both full open and at least one partial opening; a door that latches only after a hard swing has not passed the partial check.
- Verify positive latching. Listen for the latch, look at the strike, and gently pull the latch edge without operating the lever, knob, or exit device. The leaf should stay secured. On fire exit hardware, the listed latches must hit their strikes. A lock catalog’s bolt dimension does not prove the installed bolt engages once the actual gap, strike lip, and door position are taken into account.
- Check pairs as pairs. Open both leaves and release them together. The inactive leaf must close before the active leaf so the active leaf does not block it. If the pair uses automatic flush bolts, confirm they project into their head and floor strikes. Cycle the pair more than once; a coordinator, if installed, must make the inactive leaf close first.
- Check an automatic hold-open only with coordination. A listed automatic-release hold-open can be compliant if it releases on the appropriate alarm or detector signal and the door then closes and latches unaided. Do not trigger the building alarm as a casual spot check. Coordinate a functional alarm-interface test with the facility.
- Record a failure and stop. Note the opening, the position from which it failed, and what happened—for example, it stopped short, hit the strike lip, had a disconnected closer arm, or left the inactive leaf late. Do not file a strike, plane the door, tape the bolt, or install an unlisted residential closer as a shortcut.
From which opening angle should the door close?
Test from full open because that is the stated NFPA 80 inspection criterion for the active leaf, and also test from a partial opening. The degree wording differs by provision and adopted code edition; it should not be compressed into either “any angle is the inspection sentence” or “full open is all that matters.”
| Source | What it says about the closing position |
|---|---|
| NFPA 80 inspection criterion, quoted from the 2013 edition | The active door completely closes when operated from the full-open position. |
| NFPA 80 section 6.4.1.4, as quoted by Greene | Closing mechanisms must overcome latch resistance so positive latching is achieved on each door operation; that sentence does not state an opening angle. |
| NFPA 80 Annex A | Spring hinges should be adjusted for positive latching when allowed to close freely from 30 degrees. |
| IFC 2015, section 703.2.3 | Requires closing from full open and says the closer must be strong enough to close and latch from any partially open position. |
| IFC 2018 and 2021, section 705.2.4 | Retains the full-open closing-and-latching sentence; the “any partially open position” sentence was removed from the code text. |
| IFC commentary | Recommends frequent checks to ensure swinging fire doors close and latch on their own power from any position. |
The practical result is to check full open and a partial opening, while following the edition adopted by the jurisdiction. The code edition and the authority having jurisdiction (AHJ) control the applicable requirements. Section numbers change between editions, so verify the adopted text rather than relying on a section number from a different edition.
How much clearance is allowed around a fire door?
There is no safe single number for every door. Clearance limits depend on door material and construction, rating, the adopted NFPA 80 edition, and the assembly listing. Measure with a gauge, then compare with the applicable table and listing; a listing may require a tighter gap.
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The following figures distinguish the edition-specific summaries in the supplied references. The 2022 summary below is from Arch-wiki; the 2025 summary is described by Lori Greene in Buildings’ overview of fire door inspection criteria.
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| Location or construction | Edition-specific summary |
|---|---|
| Head, jambs, and meeting stiles, hollow-metal doors | NFPA 80 (2022) summary: 1/8 inch ± 1/16 inch. This means a range from 1/16 inch through 3/16 inch. Greene’s NFPA 80 (2025) summary gives a 3/16-inch maximum for hollow-metal doors and for 20-minute doors in hollow-metal frames. |
| Wood doors rated more than 20 minutes (more than 1/3 hour) | NFPA 80 (2022 and 2025) summaries: 1/8 inch maximum at the relevant edges. |
| Wood doors rated 20 minutes or less, and stile-and-rail wood doors in hollow-metal frames | NFPA 80 (2022) summary: 1/8 inch ± 1/16 inch. |
| Other door materials | The 2022 summary gives 1/8 inch maximum unless the door, frame, and latching-hardware listings permit otherwise. |
| Bottom edge to finished floor or threshold | NFPA 80 (2022 and 2025) summaries: 3/4 inch maximum. |
| Bottom edge when the door bottom is more than 38 inches above the floor | NFPA 80 (2022) summary: 3/8 inch maximum, or as the label service procedure specifies. |
For hollow-metal edges, the 2022 range’s upper end (1/8 inch plus 1/16 inch) is 3/16 inch, consistent with the 2025 summary’s maximum. But the 2022 range also has a lower bound: a gap tighter than 1/16 inch can fail that criterion. Do not reverse the material limits or apply the hollow-metal range to every wood door. Arch-wiki’s NFPA 80 (2022) summary and Greene’s later-edition summary give the edition and construction context.
Use a fire door gap gauge marked for the dimensions in the adopted table, commonly 1/8 inch, 3/16 inch, and 3/4 inch. An ordinary feeler set is not a substitute unless it actually allows the required readings to be taken and documented. A bottom gap that grew after floor refinishing or threshold removal can fail both the clearance check and, on pairs, the flush-bolt engagement check.
What does “positive latching” mean?
Positive latching means the door secures itself when it closes. No one turns a key, throws a separate bolt, or gives the leaf a final push. The latch has to engage its intended strike—or the approved arrangement has to reach its listed latching state—and remain engaged under a gentle pull.
There is no universal latch-bolt projection number for every fire door. Required engagement depends on material, rating, size, hardware, and the manufacturer’s listing. A secondary guide may cite a 1/2-inch minimum, but that is not confirmed here as a universal NFPA 80 rule. Inspect the engagement that is actually present and follow the label and listing. A leaf resting on the stop, even with a nearly invisible gap, is not proof of positive latching.
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The closer must overcome the resistance of the latch and any gasketing so that the latch engages on each operation. NFPA 80 section 6.4.1.4, as quoted by Greene, says closing mechanisms must be adjusted to overcome latch resistance and achieve positive latching “on each door operation.” Excessive spring power can make a door difficult to open; the adjustment must satisfy the assembly requirements without creating an unreasonable operating burden. Annex A guidance cited by Greene recommends a size-3 closer for many interior fire-door applications and size 4 in some conditions. These are closer power sizes, not model numbers or universal pass/fail settings.
What are the 13 swinging-door inspection points?
The close-and-latch test is one item in a broader inspection. NFPA says its checklist has 13 items, ranging from labels to an operational closing and latching test. The precise section numbering depends on the adopted edition; for example, sources describe the swinging-door items in section 5.2.4 of the 2022 and 2025 editions.
- Labels are present and legible.
- There are no open holes or breaks in the door or frame; holes left by removed hardware count.
- Glazing, vision-light frames, and glazing beads, if present, are intact and secure.
- The door, frame, hinges, hardware, and noncombustible threshold are secure, aligned, and working, with no visible damage.
- No parts are missing or broken.
- Clearances meet the applicable limits for that assembly.
- The self-closing device closes the active door fully from the open position.
- On pairs, an installed coordinator closes the inactive leaf before the active leaf.
- Latching hardware operates and secures the door when closed.
- Auxiliary hardware does not interfere; common problems include wedges, kick-down stops, slide bolts, and chains.
- There are no field modifications that void the label.
- Required meeting-edge protection, gasketing, and edge seals are present and intact.
- Signage meets the applicable standard’s size and attachment limits.
Do not assume every fire door must carry a particular sign phrase: signage requirements depend on the adopted edition and occupancy. Where a sign is used, it still has to meet NFPA 80’s limits. This list is for swinging doors; rolling steel and other non-swinging assemblies have different inspection procedures.
Who inspects fire doors, and how often?
The building owner is responsible for keeping the assemblies operable and arranging required inspections. NFPA 80 calls for inspection and testing immediately after initial installation and at least annually. A qualified person completes the annual inspection and records the result for each opening. The standard’s definition, as summarized by inspection references, centers on knowledge and understanding of the operating components for that door type; it does not prescribe one mandatory credential. Owners and AHJs may look for verifiable training, and trained in-house staff may be accepted by an AHJ.
The report is written and signed, identifies the door, records the date and inspector, gives the result for each inspection item, and notes deficiencies and corrections or outstanding work. Inspect Point’s reading of the 2019 and 2022 editions says periodic inspection records are kept for at least three years, while acceptance-test records from installation are kept for the life of the assembly. Greene also emphasizes facility and inspector details and a unique record for each assembly. Repairing a door does not erase the annual inspection requirement; after a repair or modification, test the affected functions again.
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Healthcare facilities may operate under a different edition from a nearby office building. Inspect Point reports that CMS adopted the 2012 Life Safety Code, which references NFPA 80 (2010), and required full compliance with annual fire door inspection by January 1, 2018, citing CMS Survey and Certification letter S&C 17-38. Facilities subject to CMS survey should follow their applicable requirements and keep records available for survey; do not assume the newest edition applies to every building.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why would a fire door fail the check?
Common causes include a closer adjusted too weakly to finish the latch, a disconnected arm, an oil leak, relaxed spring hinges, loose or worn hinges, a dropped leaf, or a moved frame. The bolt may then strike above or below the strike opening. What looks like a bad latch can be a frame or alignment problem.
Floor refinishing or removal of a threshold can enlarge the bottom gap. New or swollen gasketing can add resistance the closer no longer overcomes. A dogged exit device, taped latch, wedge, or kick-down stop can prevent the assembly from operating as designed. On a pair, a bent or mistimed coordinator can let the active leaf block the inactive one.
Repairs are required without delay. Use replacement parts listed for the assembly and correct the underlying cause rather than filing a strike until the bolt happens to enter. Replacing a surface closer or hinges can be ordinary maintenance when the replacement is appropriate and does not require additional cutting, mortising, or boring. Cutting or trimming a door, enlarging a vision panel, or making other unapproved changes can void the label. Do not treat a hole size or a hardware-installation allowance as DIY permission to modify a rated assembly. If the door cannot be repaired to its listing, it must be replaced.
Smoke seals and intumescent gasketing are separate inspection items, not latches, but damaged or swollen seals can affect the closing cycle. The closer must still bring the door to the latch. As Greene notes, a door that does not latch does not provide the required protection against fire pressures. Keep the opening from being treated as protected until the deficiency is corrected.
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Does this check apply to rolling steel fire doors?
No. This procedure is for swinging fire doors with builders hardware. Rolling steel, coiling, sliding, and shutter assemblies have different operational tests; do not apply the swinging door’s full-open/partial-open sequence or its 13-point list to them.
The key result is simple: the leaf must close unaided and the listed latch must secure it. The annual inspection also checks the label, condition, clearances, required seals, hardware, and other items for that specific assembly.
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What should I do if I can’t read the fire door label?
Treat the unreadable or missing label as a deficiency and have the assembly evaluated by an appropriate qualified professional. Do not infer its fire rating or clearance limits from how the door looks.
Do all fire doors need an overhead closer?
No. Spring hinges can provide a self-closing function in some assemblies, but whether they are allowed depends on the assembly, the adopted edition, and its listing. Do not specify a spring-hinge size limit from a general tip without checking the applicable requirements.
Can a fire door pass if the latch catches only when I push it shut?
No. The door must reach the closed, latched state without a final push or nudge. A latch that catches only with assistance points to a closer, alignment, clearance, seal-resistance, or hardware problem.
Does a fire door have to be locked to count as latched?
Positive latching is not the same as locking with a key or throwing a separate deadbolt. The listed latching arrangement must engage by itself when the door closes; the assembly still has to function as intended for egress.
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