Solutions / Education
School Door Locks & Classroom Security Hardware
PDQ manufactures the school door locks that K-12 districts and college campuses build lockdown plans around, led by the XGT/GT135 Series classroom intruder lock, plus ANSI/BHMA-certified hardware for corridors, administrative offices, cafeterias, gyms, portable classrooms, and campus residence halls. As featured in Door Security + Safety magazine, and specified on public, private, and higher-education projects nationwide.
Where PDQ hardware secures a school or campus
A school isn't one door type. It's classrooms, corridors, administrative offices, shared spaces, and portable buildings, each with different lockdown, traffic, and life-safety requirements. PDQ manufactures purpose-built hardware for each:
Classroom entry doors
The XGT/GT135 Series classroom intruder lock keeps the outside lever locked at all times, key-only from outside, with the inside lever always free for immediate egress.
Corridor & common-area doors
High-cycle Grade 1 cylindrical and mortise hardware built for the heaviest daily traffic of any commercial building type.
Administrative & office doors
Keyed and keyed-alike mechanical hardware, or Spirit electronic locks for badge-based staff access on admin suites and front offices.
Cafeteria, gym & auditorium
Exit devices and heavy-duty closers built for high-occupancy assembly spaces with frequent after-hours community use.
Portable & modular classrooms
Weather-resistant cylindrical and tubular locks sized for portable classroom door prep, keyed into the same campus master key system.
Egress & stairwell doors
UL/cUL fire-rated exit devices and closers keep corridor and stairwell egress paths code-compliant, with electrified options tying into fire-alarm and access-control panels.
Classroom entry doors
The XGT/GT135 Series classroom intruder lock keeps the outside lever locked at all times, key-only from outside, with the inside lever always free for immediate egress.
Corridor & common-area doors
High-cycle Grade 1 cylindrical and mortise hardware built for the heaviest daily traffic of any commercial building type.
Administrative & office doors
Keyed and keyed-alike mechanical hardware, or Spirit electronic locks for badge-based staff access on admin suites and front offices.
Cafeteria, gym & auditorium
Exit devices and heavy-duty closers built for high-occupancy assembly spaces with frequent after-hours community use.
Portable & modular classrooms
Weather-resistant cylindrical and tubular locks sized for portable classroom door prep, keyed into the same campus master key system.
Egress & stairwell doors
UL/cUL fire-rated exit devices and closers keep corridor and stairwell egress paths code-compliant, with electrified options tying into fire-alarm and access-control panels.
PDQ hardware is also specified across higher-education campuses, where residence hall unit entries behave more like multifamily doors and lecture halls, labs, and campus buildings carry their own access-control requirements. See the case studies below.
Classroom intruder lock: lockdown in seconds, without stepping into the hallway
Faced with a life-threatening lockdown, staff need to secure a classroom with confidence, not fumble with a key in the hallway. PDQ's XGT/GT135 Series classroom intruder lock keeps the outside lever locked at all times unless unlocked by key, while the inside lever always turns freely so anyone in the room can exit immediately. The GT135LED variant adds a push-button status indicator on the inside rose: press it, and an LED confirms the door is locked, so staff never have to open the door to check the outside lever during an active threat.
Grade 1 certified
Certified to ANSI/BHMA A156.2 Grade 1, and tested to exceed BHMA cycle and security requirements.
Fire & hurricane listed
UL 10C listed for up to 3 hours on single doors up to 4' x 8', and approved for Florida's High Velocity Hurricane Zone.
State code compliant
Meets California Education Code requirements for the GT135, GT135LED, and GT145 functions, plus ADA and ICC/ANSI 117.1 accessibility standards.
Grade 1 certified
Certified to ANSI/BHMA A156.2 Grade 1, and tested to exceed BHMA cycle and security requirements.
Fire & hurricane listed
UL 10C listed for up to 3 hours on single doors up to 4' x 8', and approved for Florida's High Velocity Hurricane Zone.
State code compliant
Meets California Education Code requirements for the GT135, GT135LED, and GT145 functions, plus ADA and ICC/ANSI 117.1 accessibility standards.
Classroom lockdown hardware vs. barricade devices
Aftermarket barricade and door-blocking devices have circulated as a low-cost lockdown fix, but most aren't listed or tested as door hardware, and they typically violate NFPA 80 and NFPA 101 by defeating a fire door's positive latching and blocking the one-motion, no-key, no-tool egress that life-safety code requires from inside the room. Many also fail ADA operable-force requirements outright.
PDQ's classroom intruder lock takes the opposite approach: it's a listed, ANSI/BHMA A156.2-certified lockset, so the door keeps its fire rating and the inside lever always provides immediate, code-compliant egress, while the outside lever stays locked against an intruder. Schools get real lockdown capability without creating a new life-safety violation or a liability exposure the district didn't have before.
Standards & compliance for school door hardware
|
Requirement |
What it covers |
PDQ compliance |
|---|---|---|
|
ANSI/BHMA A156.2 |
Operational and security grade for cylindrical (bored) locks, including the classroom (F84) and classroom intruder (F110) functions |
XGT/GT135 Series certified Grade 1 |
|
ANSI/BHMA A156.13 |
Operational and security grade for mortise locks, including classroom security intruder functions (F32, F33, F34) |
MR Series certified Grade 1, used on higher-traffic or higher-security doors |
|
NFPA 80 / NFPA 101 |
Fire door assembly and life-safety code: fire-rated doors must positively latch, and egress hardware must allow exit with one releasing motion, no key, tool, or special knowledge, mounted 34"-48" above the floor |
Listed, code-compliant lockset design across PDQ's classroom and exit device lines (unlike non-compliant barricade devices) |
|
ADA / ICC-ANSI 117.1 (lever operation) |
Operable without tight grasping, pinching, or twisting of the wrist |
Lever hardware across PDQ's education product lines |
|
State classroom-locking mandates (e.g., Alyssa's Law and similar state laws) |
A growing number of states require classrooms to be lockable from inside without opening the door; some states bundle additional requirements like silent panic alarms and camera access |
XGT/GT135 Series addresses the physical door-locking requirement; confirm full compliance scope with your state and district |
|
UL/cUL fire rating |
Fire-door hardware performance for classroom, corridor, and stairwell doors |
UL 10C listed for up to 3 hours (XGT/GT135 Series); rated exit devices and closers available (rating varies by model) |
Mechanical vs. electrified vs. electronic: which fits which door?
|
Lock type |
Power/wiring |
Typical school/campus use |
Credentials |
|---|---|---|---|
|
Mechanical |
None |
Classroom entry (XGT/GT135 classroom intruder), corridor, portable classroom, and back-of-house doors |
Mechanical key |
|
Electrified |
Hardwired |
Egress/stairwell doors and main entrances tied to fire-alarm or access-control panels |
Wired to building access-control system |
|
Electronic (PDQ Spirit) |
Battery, no wiring |
Administrative offices, staff-only doors, and higher-education residence hall or lab doors |
RFID, PIN, smartphone (BLE), key override |
|
Mobile-key/smart access (PDQ OEM/ODM partner platforms) |
Battery, no wiring |
Higher-education residence halls, staff badge access, campus visitor management |
Smartphone (BLE/NFC), badge, app-based visitor/temporary codes |
Electronic access control & mobile credentials for campuses
Beyond the classroom intruder lock, PDQ's Spirit electronic line and its OEM/ODM technology partners bring badge-based and mobile-credential access to administrative offices, staff-only doors, and higher-education residence halls. Because PDQ continues to add technology partners, the current lineup is maintained on one page rather than duplicated here.
Staff & admin badge access
Schedule-based electronic access for front offices, staff lounges, and administrative suites, without rekeying when staff turn over.
Higher-ed residence halls
Mobile-credential (BLE/NFC) locks for dorm and apartment-style unit entries, matching the access model students expect from off-campus housing.
Visitor & contractor management
App-based temporary access codes for campus visitors, vendors, and contractors, without issuing a physical key or fob.
Staff & admin badge access
Schedule-based electronic access for front offices, staff lounges, and administrative suites, without rekeying when staff turn over.
Higher-ed residence halls
Mobile-credential (BLE/NFC) locks for dorm and apartment-style unit entries, matching the access model students expect from off-campus housing.
Visitor & contractor management
App-based temporary access codes for campus visitors, vendors, and contractors, without issuing a physical key or fob.
FAQs
What is a classroom intruder lock, and how is it different from a standard classroom function lock?
A standard classroom function lock (ANSI/BHMA A156.2 function F84) keeps the outside lever locked or unlocked by key only, so a teacher has to step into the hallway, insert a key, and lock the outside lever to secure the room, which costs precious seconds during a real threat and exposes the teacher in the doorway. A classroom intruder lock, like PDQ's XGT/GT135 Series, keeps the outside lever locked at all times unless a staff key unlocks it, while the inside lever always turns freely so anyone in the room can exit immediately. PDQ's LED variant adds a push-button status indicator on the inside rose so staff can visually confirm the door is secure without opening it to check.
Are classroom door barricade devices legal or code-compliant?
Generally, no. Aftermarket barricade and door-blocking devices that aren't listed and tested as door hardware typically violate NFPA 80 and NFPA 101, because they defeat the fire door's positive latching and prevent the one-motion, no-key, no-tool egress that life-safety code requires from inside the room. They also commonly fail ADA operable-force requirements. PDQ's classroom intruder lock is a listed, ANSI/BHMA A156.2-certified lockset that keeps the door legally fire-rated and always allows free egress from inside, so schools get lockdown capability without creating a life-safety or code violation.
Does PDQ's classroom intruder lock satisfy Alyssa's Law or my state's classroom-locking requirements?
PDQ's classroom intruder lock addresses the physical door-locking piece of school security, letting staff secure a classroom from inside without opening the door. Alyssa's Law and similar state mandates vary significantly by state and often bundle additional requirements beyond hardware, such as silent panic alarm systems, live video feed access for first responders, and two-way communication. Confirm your specific state and district requirements with your school safety committee, architect of record, or authority having jurisdiction, and talk to a PDQ sales rep about how the classroom intruder lock fits into your overall compliance plan.
What ANSI/BHMA grade of lock is required for school and classroom doors?
Most school districts, architects, and state fire marshals specify Grade 1 locks certified to ANSI/BHMA A156.2 (cylindrical/bored locks) or A156.13 (mortise locks) for classroom and corridor doors, since Grade 1 is the highest cycle and security rating in the standard. PDQ's XGT/GT135 Series classroom intruder lock and MR Series mortise locks are both certified Grade 1 and commonly specified on new-construction and renovation school projects.
Can a locked classroom door still meet fire and egress code?
Yes, when the hardware is designed for it. Code-compliant classroom locks keep the outside lever locked while leaving the inside lever free at all times, so anyone inside the room can exit with a single motion, no key, tool, or special knowledge required, meeting NFPA 101 and model building code egress requirements. This is the key difference from non-compliant barricade devices, which physically block the door and can prevent that same free egress.
Does PDQ offer electronic access control or mobile credentials for schools and college campuses?
Yes, through PDQ's own Spirit electronic lock line and through PDQ's OEM/ODM technology partners. Options include badge-based access for staff and admin doors, scheduled unlock/lock for corridor and exterior doors, and mobile-credential locks for higher-education residence halls. Because PDQ continues to add technology partners, the current lineup is maintained on PDQ's OEM/ODM partner directory rather than duplicated here.
Consult with an Expert
PDQ's experts have been providing customers with high-quality products and services for over 40 years. Tell us about your next new-build, renovation, or district-wide security upgrade, and our team will help you spec the right lock, exit device, or access-control option for every door on campus.



