Hide from Active Shooter in Room (Lock Barricade)
For a room lockdown, use a system approved for the door and building, not an improvised barricade. People inside must be able to leave at once without a key, tool, special knowledge, or force. Check local code, accessibility, and fire-door rules with facilities staff and the authority having jurisdiction before choosing or installing hardware.
Many people want a room that can be secured quickly during a threat. But a device that blocks entry can also trap people, block an accessible route, or stop a fire door from working. The safest plan treats security and safe exit as linked needs, not competing goals.
I would start with the door, its label, and the rules for the building. Then I would get written approval, select a compatible system, and test it with the people who may need to use it. The details below are planning guidance, not a substitute for local review.
Planning: Confirm the Adopted Code, Door Type, and AHJ Approval
Planning means checking the room, door, and local rules before selecting a lockdown device. The authority having jurisdiction, or AHJ, is the local official or agency that reviews code compliance. Requirements can vary by building use and adopted code edition, so approval should come before hardware selection.
Start with facilities staff, the fire marshal, or the building official. Confirm the adopted building and fire code editions, occupancy type, room use, and any local rules for lockdown hardware. Under commonly adopted International Building Code egress provisions, doors generally must open from the egress side without a key, special knowledge, or special effort. Exceptions may apply, so ask the AHJ which rules cover this door.
Record the basics during a door survey:
- Door swing and direction of travel to an exit
- Existing lock, latch, closer, and frame
- Any fire-door label or other rating mark
- Accessible route and required exit path
- Whether another required exit serves the room
- The approved way to enter and secure the room
Ask for written facilities or fire-marshal approval before choosing a product. A manufacturer’s claim that a device is strong or suitable for emergencies does not prove it meets local code or works with your specific door.
Access & Clearances: Preserve Accessible Approach and Unobstructed Egress
Accessible access means people can reach and operate the door, while everyone can leave without obstacles. Check the clear opening, hardware height, threshold, and space needed to approach the door. These measurements come from the 2010 ADA Standards; confirm that they apply to the building and door in question.
For doors covered by the 2010 ADA Standards, §404.2.3 sets a minimum clear opening of 32 inches (815 mm) with the door open 90 degrees. Measure between the face of the door and the stop. The measurement is not the door slab’s overall width.
Section 404.2.7 places operable hardware 34 to 48 inches (865 to 1220 mm) above the finished floor. It must work with one hand, without tight grasping, pinching, or wrist twisting. Section 404.2.5 limits thresholds to ½ inch (13 mm); changes above ¼ inch must be beveled as specified in that section.
| Check | Reference point | What to verify |
|---|---|---|
| Clear opening | Door open 90 degrees | At least 32 in. (815 mm), where the 2010 ADA Standards apply |
| Hardware height | Finished floor to operable part | 34–48 in. (865–1220 mm), where applicable |
| Threshold | Height at doorway | No more than ½ in. (13 mm); bevel changes above ¼ in. as specified |
| Egress | From inside the room | Immediate release without a key, tool, or moving furniture |
| Fire-door function | Door, frame, closer, and latch | Door closes and latches as required |
Also check the approach and operating space, not just the measurements at the door. A chair, storage cart, or device placed beside the door can make an otherwise compliant route hard to use. Do not let a lockdown device block an exit or interfere with responder access.
Execution: Install Only an Approved, Door-Compatible Lockdown System
A door-compatible system is one approved for the specific door and frame, installed as its instructions require. Prefer an institution-approved lockdown lock or listed system. Do not drill, weld, or otherwise alter a labeled fire-door assembly unless the required approval and listing or manufacturer instructions allow that work.
Before installation, confirm in writing that the proposed device:
- Is accepted by the AHJ and the building’s facilities team
- Works with the door, frame, lock, and closer
- Secures the room without preventing immediate exit from inside
- Does not block required clearances or the accessible route
- Preserves fire-door closing and latching functions, where required
Never use a wedge, furniture, cord, or other improvised device as a substitute for approved hardware. These may obstruct egress or interfere with the door’s required function. Do not assume that a product’s advertised strength or load rating makes a retrofit acceptable.
Illustrative scenario: A classroom with a labeled fire door
This scenario shows a review process, not a documented incident or a universal design. A school finds a fire-door label during a room survey and asks facilities staff to review a proposed lockdown lock. The team pauses installation until the fire marshal confirms compatibility and approval.
The review checks whether the door still closes and latches, whether people inside can release the lock without a key or tool, and whether the opening stays clear. If the proposed device requires drilling that is not approved, the team does not install it.
Illustrative scenario: An office with an accessible route
This scenario is also illustrative. An office team considers a lockdown device for a room used by staff and visitors with different access needs. Facilities staff check the open-door clear width, operating space, hardware height, and threshold before choosing a system.
The team also tests the release from inside and confirms that the device does not rely on moving furniture. If the hardware or approach creates a barrier, the team asks the AHJ and accessibility reviewer for an approved alternative.
Verification: Test Release, Latching, Training, and Ongoing Inspection
Commissioning means testing the installed system before relying on it. Check ordinary entry, lockdown, release from inside, accessible operation, door closing, and latching. Record the results, train users, and repeat the checks after repairs or hardware changes.
A practical review can follow this order:
- Normal use: Confirm authorized entry works as intended.
- Lockdown: Confirm trained staff can secure the room using the approved steps.
- Inside release: Verify a person can leave immediately without a key, tool, special knowledge, or unusual force.
- Access: Check the clear opening, approach space, hardware operation, and threshold.
- Fire-door function: Where applicable, confirm the door closes and latches as required.
- Records: Note the date, reviewer, results, and any repair or follow-up needed.
Include people who may use the room in practice sessions. Explain who can operate the device, how it releases from inside, and whom to contact about a fault. Keep the instructions consistent with the building’s emergency plan.
After repairs, a door replacement, or a hardware change, repeat the relevant checks. A system that worked before an adjustment may no longer function as intended. Set an inspection schedule with facilities staff rather than relying on memory.
During a Threat: Follow the Building’s Emergency Plan
In an active threat, follow the site’s emergency plan and instructions from emergency services. If there is a safe route away from danger, use it. If you cannot leave safely, move into a room that can be secured, lock the door using its approved hardware, stay out of view, silence your phone, and contact emergency services when safe.
Do not spend time building an improvised barricade if doing so blocks an exit or delays a safer action. Keep away from the doorway and windows if possible, and follow directions from responders. Plans differ by site, so learn the local procedures before an emergency occurs.
FAQ: Lockdown Locks, Barricades, and Safe Exit
These answers cover common planning questions about securing a room while preserving safe exit. Local codes and building conditions can change what is allowed. Ask facilities staff or the AHJ to confirm how each point applies to your site.
Can a room-lockdown device prevent people from leaving?
No. People inside should be able to exit at once without a key, tool, special knowledge, or special effort, subject to the code rules that apply to the building.
Is a furniture barricade a safe substitute for approved hardware?
No. Furniture can block an exit, create access barriers, or interfere with a fire door. Use only a solution approved for the room and door.
Does every door need a lockdown lock?
Not necessarily. The right solution depends on the room, door, occupancy, local code, and building plan. Get a site-specific review before selecting hardware.
Who approves a lockdown system?
The AHJ reviews code requirements. Facilities staff, the fire marshal, or other local officials may also need to review the proposal. Confirm the approval path for your building.
Can a fire door be modified to add a lock?
Do not alter a labeled fire-door assembly without required authorization. Use compatible, approved hardware and preserve its required closing and latching function.
What clear opening does the ADA standard specify?
The 2010 ADA Standards §404.2.3 specifies at least 32 inches (815 mm) with the door open 90 degrees, for doors covered by that standard.
How high should accessible door hardware be?
Under the 2010 ADA Standards §404.2.7, operable hardware is 34 to 48 inches (865 to 1220 mm) above the finished floor, where the standard applies.
How often should the system be checked?
Follow the building’s inspection plan and the product instructions. Recheck after repairs, hardware changes, or a door replacement, and document the results.
What is the key planning rule?
A room must not be secured in a way that traps occupants, blocks an accessible route, prevents required egress, or stops a fire door from closing and latching. Secure the room only with an approved, tested system.
(This article was written by one of our staff writers, Samuel Thornton. Visit our Meet the Team page.)
