masterkey systems
How Traditional Masterkey systems work
The vast majority of doors today are secured with mechanical locking cylinders and keys. Typically, each cylinder is operated by its own specific key—often called a “differ key.” However, when someone needs to open multiple doors, carrying several differ keys can become inconvenient and time-consuming. To solve this, cylinder locks can be designed so that multiple locks operate with a single key, known as a “master key.” It’s also possible to combine several groups of locking cylinders and master keys into one integrated suite, which we call a Master Key System. A Master Key System usually groups locking cylinders by location, such as those on the same floor or throughout an entire building. For system planning and construction, these groups are organised into a hierarchical structure.


Key Control System Design
Our approach to designing master key systems is both methodical and tailored to your unique needs. We begin by identifying and grouping users for each department or building, ensuring every access requirement is clearly understood. Next, we assign a unique control key to each user group. With these control keys in place, we assess every door in your facility to determine which keys should grant access. Our system allows for different control keys to be allocated access to various door combinations, while individual keys can be designated for high-security areas such as cash rooms, medical records, or exam rooms. This structured process ensures a secure and customised master key system that works for you.
master Key System Experts
At Access2, we design thousands of master key systems each year that seamlessly expand with your evolving needs. Whether you require high-security 3* BSI Kitemark cylinders for residential masterkey system or a simple open profile system for a small business. Our solutions are tailored to provide the perfect level of security for all your requirements.


CEN TS17814
Providing a master key system is about much more than just supplying a building hardware product. These systems require ongoing service and support over many years, evolving, adapting, and expanding over time. CEN TS 17814 was developed to establish best practice guidance for the provision of master key systems. It sets out requirements and procedures to ensure the protection of data and sensitive information related to mechanical master key systems and other mechanical key systems where customer or application-specific data is processed throughout planning, production, installation, and maintenance. Access2 can provide master key systems in accordance with CEN TS 17814.
Need a Master Key System Designed?
Speak to our expert team today we’re here to help!