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      GT135 LED with designs around

       

      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.

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      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:

      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.

      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.

      See PDQ's current OEM/ODM partners

      Case studies

      High School

      Racine Lutheran High School

      A renovation and expansion project adding classroom and athletic space in Racine, WI, with improved separation between school and athletic spaces for student and staff security.

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      Private / Catholic School

      St. Mary's Preparatory School

      A Catholic, college-preparatory high school with a Polish-American heritage dating to 1885, secured with PDQ hardware throughout.

      Learn More
      Public Elementary School

      W.L. Swain Elementary School

      A public elementary school in Plainville, GA, serving 396 students across grades, renovated and updated with PDQ door hardware.

      Learn More
      School District

      Hannibal School District

      A district-wide security upgrade built around strong, accessible, and affordable locks to better secure classrooms and protect children and teachers.

      Learn More
      Private Day School

      University Liggett School

      Michigan's oldest independent co-ed day school, founded in 1878, built a new athletic center in Grosse Pointe Woods, MI, secured with PDQ hardware.

      Learn More

      Shop education-ready product lines

      Cylindrical Lock · Grade 1

      XGT/GT135 Series

      Classroom intruder function locks the outside lever at all times, key-only from outside, with the inside lever always free for immediate egress. LED variant adds a push-button status indicator.

      View XGT/GT135 Series
      Mortise Lock · Grade 1

      MR Series

      Grade 1 mortise lock built for durability on high-traffic corridor, classroom, and administrative doors.

      View MR Series
      Exit Device

      6300/6400 Series

      Rim and surface vertical rod exit devices for egress, stairwell, cafeteria, gym, and auditorium doors, with electrified trim options.

      View Exit Devices
      Door Closer

      7100 Series

      Extra heavy-duty door closer built for the highest-traffic school and campus doors.

      View 7100 Series
      Electronic Solutions

      Spirit Series

      Wireless, app-managed electronic locks for administrative offices, staff-only doors, and higher-education residence hall or lab doors.

      View Spirit Series
      Electronic · Mobile Key

      OEM/ODM Partner Platforms

      Mobile-ready locksets and badge-access systems built with PDQ's OEM/ODM technology partners for residence halls, staff access, and visitor management.

      View OEM/ODM partners

      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.