Creating a master key system involves more than giving your team some keys. It is a unique hierarchical structure that gives access to those allowed while restricting the entry of unauthorized users. Learning about this system will help improve site security and ease operations. We will provide a brief overview of master key systems and how they are created.

This is an example of a Master Key Chart that could be used for a school district.

A master key system is a multilevel keying system used in large buildings to improve security. Locks can utilize one key to open multiple doors and limit access to different locked areas within a single building or multiple buildings.

Typically, there are several levels, which include:

  • GGM – Great Grand Master Key– This key will open all subsequent key systems under it, including Grand Master, Sub Master, and Change Keys.
  • GM – Grand Master Key– This key gives access to the multiple master keys and the subsequent change keys under those.
  • Sub Master Key– The Sub Master key is able to lock and unlock all of the change key locks prioritized below it within a given system.
  • Change Key– This key will open only one lock. The change key’s corresponding lock can also be opened by all Master Keys above it within the hierarchy.

This system improves security, simplifies lock management, and ensures that maintenance and security staff can quickly enter critical locations.

Planning and Designing a Master Key System

There are several crucial steps in the planning and design of a master key system. Here are some measures you can take to improve your system:

  1. Assess facility needs: Begin by assessing the facility’s layout, security requirements, and accessibility demands. Identify vital areas, such as high-security zones, restricted areas, and general access points, to better understand which areas require different degrees of use.
  2. Determine key hierarchy: This entails developing a structure with individual keys for specific doors, sub-master keys for groups of doors, and a grand master key for all access. Ensure that the hierarchy is consistent with the facility’s security levels and operational requirements.
  3. Design key and lock specifications: Choose appropriate locks and key types that fit the designed hierarchy. Consider factors like durability, compatibility with existing hardware, and ease of use.
  4. Coordinate with security professionals: Work closely with security experts and locksmiths to ensure the system meets industry standards and security protocols. They can offer insights into effective key control and locking mechanisms.
  5. Create a key control policy: Develop a policy for issuing, tracking, and managing keys to prevent unauthorized duplication and loss. This policy should also outline procedures for key replacement and lock rekeying if necessary.
  6. Implement and test: Install the locks and distribute the keys according to the system design. Conduct thorough testing to ensure that the system works as intended and that all entry points are properly controlled.
  7. Review and adjust: Periodically review the system to address any security issues or changes in facility needs. Adjust the system as required to maintain optimal security and operational efficiency.

Are you considering a master key system? Anderson Lock creates and manages thousands of master key systems throughout the Chicagoland area. Recently, Anderson Lock integrated a new master key system in a Chicago Suburb School District, covering 20 schools, as well as the district’s administration and transportation buildings. Additionally, there are just over 11,100 students within the district. Thousands of cores, cylinders, locks, and keys have been utilized to support this large system. The system used is a Schlage Locks restricted LFIC with multi-keyway capability, delivering a consistent and dependable security solution across all sites.

Maintenance and Troubleshooting

Regular maintenance of a master key system is essential for preserving long-term security and efficiency. It helps prevent unauthorized access by eliminating potential threats, assuring operational stability, and extending the life of locks and keys. Difficulties with turning keys, faulty locks, or lost/stolen keys, should be corrected immediately. Regular inspections, appropriate lubrication, and precise key control records can help avoid these issues. Utilizing a professional locksmith service, like Anderson Lock, and training employees on key handling, are necessary for maintaining a reliable system.

Schedule periodic checks to ensure the master key system stays functional and address concerns such as jammed locks or key malfunctions as soon as possible. If keys are lost or stolen, locks may need to be rekeyed or replaced. Maintaining detailed records of key issuance and revisions improves security for the future. Educating employees on correct key management and reporting processes strengthens the system’s effectiveness and stability.

Upgrading and Expanding the System

Upgrading or expanding a master key system is needed for facility development, increasing security requirements, technology advancements, or key control difficulties.

To guarantee a smooth transition, evaluate the new requirements and collaborate with security professionals to develop an acceptable system. Implement changes in stages to reduce disturbance and communicate with employees about new procedures and access permissions. Before full deployment, thoroughly test the new system and update key control records with any modifications. This strategy facilitates the seamless integration of the new system, keeping operational effectiveness and optimizing protection.

Ready To Set Up Your Master Key System?

With schools reopening and offices being renovated, now is an excellent moment to examine and strengthen security. A master key system might be the best option. Security in your facility can be significantly improved by using a single key to open several doors and restrict access to different secured areas inside single or multiple buildings.

Anderson Lock offers experienced services for creating a master key system tailored to your facility’s needs. We offer site managers customized assistance and support for master key system creation and maintenance.

Give us a call and take charge of your facility’s security today.