SCHOOL DOOR SECURITY GUIDE
School Door Security: A Locked Door Is Not the Same as a Known Door
In 2021-22, 97% of U.S. public schools reported controlling access to their buildings during school hours. The failures happen between the checks: propped, held, and forced doors that nobody knows about. This guide covers what your state requires, the three ways schools watch their doors, and what the evidence says works.
Checking your doors against your state's rule? Schedule an exterior door review
WHAT IS SCHOOL DOOR SECURITY
Every Exterior Door, Closed, Latched, Locked. And Known.
School door security is the practice of keeping every exterior door closed, latched, and locked during the school day, and knowing the moment any door fails that standard. It covers three layers: the door hardware itself, the rules your state sets for checking doors, and the systems that watch door status between checks. Classroom doors follow their own rules; see classroom door lock requirements.
The policy side is largely settled. In 2021-22, 97% of U.S. public schools reported controlling access to school buildings during school hours, for example with locked or monitored doors (NCES). The unsolved part is awareness: a door that was locked at the morning check gets propped for a delivery at 10 a.m., and nobody who could act on it finds out. Propped doors bypass every screening protocol the front office runs, because visitor management only vets the people who use the front door.
A May 2026 study by the ALERRT Center at Texas State University analyzed 54 school active-shooter incidents from 2000 to 2025 and found that 20 of the 29 doors attackers entered through (69%), classroom and exterior doors counted together, were unlocked, propped open or otherwise unsecured. No lock was defeated mechanically: all six locked doors that attackers breached were breached by shooting through glass, and flush doors with working locks were never breached. The gap is knowing, between checks, whether each door is still secure. A door sensor can show that a door is closed; only a hands-on check confirms that it latched and locked.
Key Facts About School Door Security
20 of the 29 doors attackers entered through in school active-shooter incidents (69%), classroom and exterior doors counted together, were unlocked, propped open or otherwise unsecured (ALERRT Center, May 2026)
No lock was defeated mechanically in the 54 incidents studied; all six locked-door breaches went through glass
88% of unauthorized entries in Texas state audits came through secondary doors, not the main entrance
A weekly door check watches one hour out of 168. The other 167 hours are the blind spot
THE THREE APPROACHES
The Three Ways Schools Watch Their Doors
Every approach falls into one of three tiers. The differences decide what you know, when you know it, and what you can prove afterward.
Manual checks
Clipboard or app. A human walks every door on a schedule.
Audible-only alarms
A horn at the door. Noise where the problem is, and nowhere else.
Monitored door alerts
Continuous sensor status, routed alerts, and a log.
| Capability | Manual checks | Audible-only alarms | Monitored door alerts |
|---|---|---|---|
| How it works | Staff walk every door on a schedule and log the result | A local horn sounds at the door when it opens or is held | A wireless sensor reports every door's status continuously |
| Coverage between checks | None. A weekly check watches one hour out of 168 | Noise at the door only, and only when someone is nearby to hear it | Continuous, every door, all day |
| Who finds out | Whoever reads the log later | Whoever is standing at that door | Staff who can act: front office, security staff, resource officer, dispatch |
| Record for compliance | The log itself, filled in by hand | None. A horn keeps no record | Time-stamped event log for every door |
| Known failure mode | Doors fail between checks; logs get lost | Alarm fatigue: staff tape the contact or tune out the noise | Requires sensors on every door you want covered |
Digitizing a clipboard is still a clipboard. Apps that speed up manual door checks automate the paperwork, not the door. And an audible-only alarm produces no record, so it contributes nothing to a compliance log.
STATE REQUIREMENTS
What States Require for School Exterior Doors
As of the 2025-26 school year, the 51-jurisdiction review found 3 logged-inspection requirements, 7 locked-condition requirements, 17 assessment-or-plan mandates, and 24 with no statewide requirement found (27 jurisdictions with some requirement). Those 27 are 26 states plus Washington DC; the review was verified against primary statute text, August 2026. The strictness varies widely, and the field is moving: Ohio (2024), Georgia (2025), and Utah (2025) all added new door requirements.
Hover any jurisdiction for its requirement. Each of the 27 jurisdictions with a requirement links to its own state page, and so does Pennsylvania, whose door items sit in grant and assessment criteria.
Texas: the only weekly-log state
Under 19 Texas Administrative Code 103.1215, which took effect September 1, 2026 and replaced 19 TAC 61.1031, districts must inspect every exterior door at least weekly during school hours and certify each door is closed, latched, and locked. The Texas Education Agency audits both the doors and the paperwork, and missing logs are a finding on their own, even when every door passes. Read the Texas intruder detection audit guide.
Condition states: locked, and enforced
Florida requires campus access points to stay closed and locked from 30 minutes before school starts until 30 minutes after it ends (at schools with a secure exclusive zone, the gates and access points to that zone while students are on campus; at schools without one, every door, gate and access point into a school building), unless an exception applies, such as an access point that is attended or actively staffed, and enforces the rule with unannounced state inspections, inspection reports with photographs or other evidence of noncompliance, and reinspection within 6 months of schools where noncompliance is documented. Tennessee puts money behind the condition: repeated violations can cost a district 2% of state funds per violation.
Door Security Requirements by State
Texas
Texas requires a weekly exterior door check.
Florida
Florida requires campus access points to stay closed and locked.
Ohio
Ohio requires annual documented inspections of school door assemblies.
Georgia
Georgia requires every school safety plan to address exterior doors.
Utah
Utah requires school access doors to remain closed and locked.
Tennessee
Tennessee requires exterior doors locked at all times, with escalating penalties.
New Jersey
New Jersey requires exterior doors locked at all times, reversing its old rule.
Arkansas
Arkansas requires exterior doors locked during school hours, transition times excepted.
North Carolina
North Carolina requires documented door inspections, not a locked condition.
Kentucky
Kentucky requires controlled access to exterior doors, checked annually and unannounced.
Vermont
Vermont requires a local policy locking exterior doors during the school day, with no inspector behind it.
New York
New York assesses doors on a five-year survey and audits district building access by name.
Maryland
Maryland evaluates every public school every 2 years, and its own reports keep naming doors and locks as the gap.
Michigan
Michigan reviews an emergency plan with police every two years, and leaves the doors themselves to local policy.
Alabama
Alabama grades your door locks on a five-year inspection, then keeps the rating confidential.
Virginia
Virginia audits every school once a year, with a standardized walk-through that reaches the doors but stops at the day it happens.
District of Columbia
DC writes the door standard into statute and checks it yearly, while a 1944 keep-unlocked provision is still on the books.
West Virginia
West Virginia makes every county write down whether its exterior doors are monitored, then assesses each facility yearly.
Wyoming
Wyoming prescribes the equipment rather than the process: buildings shall have exterior door locks, a secured vestibule, and lockdown capability.
Connecticut
Connecticut names door hardware in statute, but only for grant-funded projects; every school gets a biennial assessment instead.
Oklahoma
Oklahoma set one deadline for every district, July 1 2026, then a five-year clock and no door rule in between.
Wisconsin
Wisconsin assesses every building regularly occupied by pupils, on site and alongside local law enforcement.
Arizona
Arizona reaches only districts taking School Safety Program money, and names doors nowhere in the duty.
Indiana
Indiana names unauthorized access and interior rooms at every hour, then sets no date to look again.
Idaho
Idaho inspects every school every year, and the annual inspection is not the security one.
Rhode Island
Rhode Island assesses with the police and reports to the police, on fixed calendar dates.
South Carolina
South Carolina wrote the checklist and never wrote the enforcement to go with it.
Pennsylvania
Pennsylvania's school safety law has no door locking, checking or alarm requirement. Its grant and assessment criteria list the door items.
Whatever your state requires, the gap is the same: knowing, between checks, whether each door is still secure. In an exterior door review, we walk your exterior door list, identify which openings have no way to report their status, and show what continuous monitoring and automatic logging would look like across your campuses. Schedule an exterior door review
Positive Proof, School Door Security Guide. Printed from positive-proof.com/school-safety/school-door-security#door-checks. The web page is the current version.
DOOR CHECKS FOR SCHOOLS
Door Checks for Schools: A Check-and-Response Checklist
A door check is a person walking to each exterior door and confirming it is secure. A door-position sensor can show that a door is closed. It does not show that the door latched or locked, and it does not replace the hands-on checks below.
Use this checklist for school exterior door checks: what to look at on each door, who checks and how often, what to do when a door is propped or fails, and how to keep the record. Print the checklist and the log sheet and take them on your round.
This is practical guidance, not a legal standard. Follow the state and district procedures that apply to your school. They may set who checks, how often, and what the record must show. See what your state requires.
Prints the checks, the response steps, and the log sheet.
What to check at every exterior door
- 1. Closed. The door sits fully shut in its frame.
- 2. Latched. Push or pull the door without using the handle. It does not move open.
- 3. Locked from the outside, when your schedule says this door should be locked. It does not open from the outside without a key or an authorized credential.
- 4. Opens from the inside. The door still opens from the inside for exit. No chain, padlock, or object blocks it.
- 5. Closes on its own. Open the door fully and let go. It swings shut and latches without help.
- 6. Nothing propping it. No wedge, rock, mulch, chair, or other object at the door, the frame, or the latch.
- 7. Hardware intact. Handle, lock, latch, strike plate, hinges, and closer are undamaged and tight.
Locking a door against entry must never block the way out. Utah's school safety rule, for example, requires access doors to stay closed and locked while still allowing emergency exit from the inside. It applies now to new school building projects and to existing school buildings by the 2034-2035 school year (Utah requirements). North Carolina law requires the principal to keep exit doors in good working condition and the doors needed for prompt exit unlocked while the building is occupied (North Carolina requirements).
If the door is a fire door, do not wedge or block it open. The rules on fire doors and approved hold-open devices are in our guide Is It Illegal to Prop Open a Fire Door?
Who checks, and how often
Your state or district may set this. Some states set a schedule, and others set a condition every door must meet or a yearly review. Where your state sets no schedule, your district or school decides. Some of the duties below are fire-safety rules rather than security rules, but they send people to the same doors.
- Texas
- Districts must inspect every exterior door at instructional facilities at least weekly during school hours and certify that each door is closed, latched, and locked.
- North Carolina
- The principal inspects each building for fire hazards at least twice a month during the school session and files a monthly written report with the superintendent. Inspectors chosen by the county commissioners also inspect each school building for fire hazards at least twice a year, at least 120 days apart.
- Florida
- From 30 minutes before school starts until 30 minutes after it ends, campus access doors and gates must stay closed and locked unless an exception applies, such as a door actively staffed by school personnel. District school safety specialists, or their designees, inspect every public school, including charter schools, unannounced each year.
- Kentucky
- Every school must control outside access to exterior doors during the school day. Compliance officers from the state school security marshal's office review schools on site, unannounced, and the office says each public school is assessed at least once a year.
- District of Columbia
- The Department of General Services assesses each DCPS facility at least once a year, including whether all exterior doors close automatically and lock securely.
- Ohio
- Each school governing authority must have a qualified inspector inspect and test all protective door assemblies in its school buildings every 12 months, a fire and life-safety requirement. These include doors with panic or fire exit hardware.
- Georgia
- Each public school safety plan must say whether and when exterior doors will be locked, actively supervised by school personnel, or both.
Inside your school, name the people. Assign each door to a named checker, set the time of each round, and name who covers when that person is out.
Busy times need their own plan. Aspen School District in Colorado suggests having designated school team members monitor and control entry and exit points at the start and end of the school day.
Some districts check far more often than once a week. In 2022, Springfield Public Schools in Missouri reported that one school police officer checked all 21 exterior doors at one middle school every 90 minutes.
When a door is propped or fails
- Close it if it is safe to do so, and check that it latched.
- If it will not close, latch, or lock, keep an adult at the door and report it right away to the office, an administrator, or the school resource officer.
- Log it: the door, the time, what you found, and what you did.
- Request the repair for any failed closer, latch, lock, or strike, and record the work order.
- Find out why it was propped. A door propped for the same reason twice needs a fix for that reason, not only a reminder.
- Recheck the door after the repair and at the next round.
Never chain an exit shut or wedge a fire door open to solve the problem.
For practical ways to keep doors from being propped open in the first place, read Stop the Prop: How Schools Keep Exterior Doors Closed.
Train every staff member on this routine, substitutes included. After a finding in a Texas Education Agency intruder detection audit, for example, the district must give campus staff and substitutes live training on securing exterior doors (Texas intruder detection audit guide).
Keep the record
Write down every check, including the doors that pass. For each round, record the date and time, who checked, each door's result, and any problem with the action taken and the date it was fixed.
Keep the records where an administrator or auditor can find them. In Texas Education Agency intruder detection audits, inspectors review the most recent six consecutive weeks of exterior door sweep logs. Logs that are missing, inaccessible, or have gaps are a finding on their own.
School Door Check Checklist: Log Sheet
School:
Date:
Round start time:
Checked by:
| Door (number or location) | 1. Closed | 2. Latched | 3. Locked outside | 4. Opens inside | 5. Closes on own | 6. Nothing propping | 7. Hardware OK | Problem and action taken | Fixed (date) | Initials |
|---|---|---|---|---|---|---|---|---|---|---|
Blank rows to fill in by hand. Check each box that passes. Report any door that will not close, latch, or lock before you finish the round.
Where door monitoring fits
A door check shows each door at one moment. Door monitoring covers the hours between checks.
A wireless sensor on each monitored door reports whether it is open or closed. When a door is propped, forced, or held open past the limit you set for that door, the people you choose get an alert. The system logs every event.
Monitoring has limits. A contact sensor shows a door is closed, not that it latched or locked, and it cannot test the closer, so keep the hands-on check.
Monitoring does not replace any check or log your state requires. In Texas, sensor data is evidence attached to your weekly log, not a replacement for it. An alert does not make propping a fire door allowed.
See how Positive Proof Door Monitoring works, or schedule an exterior door review for your campus.
WHAT THE EVIDENCE SAYS
Locked Doors Work. Paperwork Is Not Coverage.
Incident research and state audit data point at the same conclusion from opposite directions.
69%
of the 29 doors attackers entered through, classroom and exterior counted together, were unlocked, propped open or otherwise unsecured (ALERRT Center study of 54 incidents, May 2026)
0
locks defeated mechanically; all six locked-door breaches went through glass
88%
of unauthorized entries in Texas audits came through secondary doors
90%
compliance rate (90.10%) on the exterior-door check in 2024-25 Texas audits, the lowest of any phase; the other phases, including the door sweep log review, were above 97%
In the Texas audits, the logs are in better shape than the doors, and a periodic sweep cannot show whether a door stays closed between checks. What state rules require at the visitor entrance itself is set out in our guide to school entrance security requirements. In the 2.46 percent of 2024-25 Texas audits where inspectors got inside, it took them 3.54 minutes on average.
HOW POSITIVE PROOF COVERS EVERY DOOR
Continuous Status on Every Door, Alerts to the People Who Can Act
Positive Proof Door Monitoring puts a wireless sensor on every exterior door and reports continuous status to one dashboard, so a propped, forced, or held-open door becomes an instant alert instead of a next-week discovery.
See Every Door on Your Campus in One Dashboard
A 30-minute demo maps your door count, shows how alerts route to your staff and responders, and covers what your state requires. Pricing is quoted to your campus, not a rate card.
Common Questions About School Door Security
The questions administrators and facility directors ask most when they evaluate door security, from state rules to what sensors can and cannot prove.
Related Resources
Door Monitoring vs Access Control
What each system actually stops, and why they solve different problems.
Positive Proof vs Verkada Door Monitoring
What each system requires at the door, how held-open alerts are timed, and published Verkada costs.
Texas Intruder Detection Audit Guide
The audit process, the weekly door-sweep rule, and what a finding triggers.
Door Monitoring for K-12: The Complete Guide
A deeper product-level walkthrough of door monitoring.
Door Monitoring Solution
Positive Proof Door Monitoring capabilities, options, and demo.
K-12 Education Solutions
How door monitoring fits the full campus safety picture.
Alyssa's Law Requirements by State
The panic-alarm mandate, a separate requirement from door security.
SCHEDULE AN EXTERIOR DOOR REVIEW
The Next Propped Door Should Be an Alert, Not a Finding
Positive Proof has spent 25+ years in school safety deployment. An exterior door review maps your exterior doors, your state's requirements, and exactly how alerts would route to your team, before an audit or an incident decides the timeline for you.
Schedule an Exterior Door ReviewOr contact us directly