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Door Locking Standards

Door standards from the Builders Hardware Manufacturers Association address a range of features and characteristics of doors. Covering door controls, hanging, locking, trimming, power assist, and other standards, this set comes together to provide a comprehensive toolkit for manufacturers to create hardware that designers and users can depend on with a focus on reliability and interoperability. These standards are related to a wide variety of locking mechanisms for different doors.

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ANSI/BHMA A156.2-2017

Bored and Preassembled Locks and Latches

This Standard establishes performance requirements for bored and preassembled locks and latches, and includes dimensional criteria, operational tests, strength tests, cycle tests, security tests, material evaluation tests, and finish tests.


ANSI/BHMA A156.3-2020

Exit Devices

This standard establishes requirements for exit devices and trim, automatic flush bolts, removable mullions, coordinators, and carry-open bars. Performance criteria include cycle, operational, strength, material evaluation, finish and security tests. Functions and types are described and numbered.


ANSI/BHMA A156.5-2020

Cylinders and input devices for locks

ANSI/BHMA A156.5 establishes requirements for mechanical cylinders, electrified input devices, and push button mechanisms, which include operational and strength tests.


ANSI/BHMA A156.36-2020

Auxiliary Locks

Establishes requirements for Auxiliary Locks, and includes dimensional criteria and five classifications of tests: operational, cycle, strength, security and, finish. Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.


ANSI/BHMA A156.12-2018

Interconnected Locks

This Standard establishes performance requirements for Interconnected Locks and includes operational, cycle, strength, material evaluation, security, and finish tests.


ANSI/BHMA A156.13-2017

Mortise Locks and Latches

This Standard establishes performance requirements for Mortise Locks and Latches and includes operational, cycle, strength, material evaluation, security, and finish tests, and dimensional criteria.


ANSI/BHMA A156.23-2017

Electromagnetic locks

This Standard establishes requirements for electromagnetic locks and includes cyclical, dynamic, operational, strength and finish tests. This product is used for access control.


ANSI/BHMA A156.24-2018

Delayed Egress Locking Systems

his standard covers products used in connection with conventional exit devices or locks causing the doors to remain locked after releasing actuation for a predetermined length of time. Performance criteria are included for functional, cycle, operational, fail-safe and overload requirements.


ANSI/BHMA A156.25-2018

Electrified Locking Devices

Electrified locking systems are usually comprised of four functional components: locking devices, input devices, controlling devices, and power supplies. This Standard establishes requirements for the locking devices, whose mechanical aspects are described in the applicable BHMA product Standards; in addition, where the input or controlling device or both are an integral part of the locking device, they shall also be tested with the locking device covered by this Standard. This Standard includes requirements for cyclical, security, operational, strength, and environmental tests for these products.


ANSI/BHMA A156.28-2018

Recommended Practices for Mechanical Keying Systems

This recommended practice is intended for building owners, security professionals and others responsible for designing, implementing, and maintaining secure keying systems. Minimize legal liability by providing industry proven guidelines. It covers system design, to provide design criteria to establish and maintain a secure keying system. The purpose of this document is to provide guidelines for the essential keying conference, establish good practices for effective key management, and give building owners the ability to extend the life of keying systems to meet future demands.


ANSI/BHMA A156.29-2017

Exit Locks, Exit Alarms, Alarms for Exit Devices

ANSI/BHMA A156.29 establishes requirements for Exit Locks, Exit Alarms and Alarms for Exit Devices and includes operational and finish tests. Alarms for Exit Devices include operational tests only.


ANSI/BHMA A156.30-2020

High Security Cylinders

This Standard includes security performance based requirements for both mechanical and electrified high security cylinders. For the purpose of this Standard, High Security Cylinder includes mechanical lock cylinders, electromechanical cylinders, and the electronic lock sub assemblies that are analogous to the cylinder assemblies. Cylinders include their keys or electronic credentials; their detainers (mechanical pins, levers, discs) or electronic control device; and their cylinder tailpiece or cam or electronic output port.


ANSI/BHMA A156.31-2019

Electric Strikes And Frame Mounted Actuators

ANSI/BHMA A156.31 establishes requirements for Electric Strikes and Frame Mounted Actuators, and includes operational and finish tests. Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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