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Master Key Suites & Master Key Systems

Professional Master Key Systems Designed by Garrison Locks
 

At Garrison Locks, we specialise in master key suites, keyed-alike locking systems and high-security cylinder solutions using established locking platforms, including Mul-T-Lock and Garrison Integrator.

Our specialist keying services cover a range of Mul-T-Lock platforms, including INTEGRATOR, MTL200, MTL300, MTL400, MTL500, MTL600 and MTL800, subject to product availability and system compatibility.
 

What Is a Master Key System?

A master key system, also known as a master suite or master keyed locking system, allows multiple locks to operate using individual keys while also providing authorised users with a master key capable of opening designated locks within the system.

This enables businesses, property managers and organisations to control access to different areas without requiring management personnel to carry numerous individual keys.

For example, individual employees may have keys that operate only their designated doors, while managers or authorised personnel can use a master key to access several areas.

Master key systems can be designed using compatible euro profile cylinders, padlocks and other mechanical locking products, depending on the selected key platform.
 

How Does a Master Key Suite Work?

A basic master key system may consist of three individual locks and one master key.

Each lock has its own operating key, while the master key provides access to all three locks.

Example:

• Key A operates Lock A only.

• Key B operates Lock B only.

• Key C operates Lock C only.

• Master Key (MK) operates Locks A, B and C.

Keys A, B and C cannot operate one another's locks. The master key provides authorised access to all three.

This arrangement can be expanded to accommodate additional locks, departments, buildings and access levels.

Types of Master Key & Keyed-Alike Systems
 

Keyed Alike (KA) Systems

A keyed-alike system allows multiple compatible locks to operate using the same key.

This is particularly useful where customers want to reduce the number of keys required for several doors, padlocks or access points.

Master Keyed (MK) Systems

A master keyed system provides individual keys for designated locks alongside a master key that operates multiple locks.

This arrangement is suitable for offices, commercial premises, workshops, schools and managed properties.
 

Grand Master Key (GMK) Systems

For larger premises or organisations, a grand master key system can provide additional levels of access control.

Individual keys operate specific locks, departmental master keys operate designated groups, and a grand master key provides access across the wider system.

These systems require careful planning to ensure the correct access hierarchy and future expansion requirements.
 

Master Key Systems for Commercial & Residential Applications

Garrison Locks can assist with master key suite requirements for a wide range of premises, including:

• Offices and commercial buildings

• Schools, colleges and educational facilities

• Industrial units, warehouses and workshops

• Apartment buildings and managed residential properties

• Hotels, hospitality premises and accommodation facilities

• Retail premises and multi-site businesses

• Storage facilities, gates and external security applications

A properly planned master key suite can simplify key management, reduce the number of keys carried by authorised personnel and provide a clear structure for controlling access.
 

Master Key Suites Using Specialist Locking Platforms

Garrison Locks supplies specialist locking products and keying solutions, including systems based on Mul-T-Lock and Garrison Integrator key platforms.

Depending on the platform and application, compatible locking products may include euro profile cylinders, half cylinders, thumbturn cylinders, padlocks and other specialist cylinder configurations.

The choice of system depends on the required security level, available cylinder sizes, key control requirements, lock compatibility and potential future expansion.

Our team can help identify a suitable platform for your proposed master key arrangement.
 

Planning Your Master Key System

When designing a master key suite, it is important to consider both current and future access requirements.

Useful information includes the number of locks required, cylinder types and sizes, which doors each person or department should access, and whether additional locks may need to be incorporated later.

An accurately planned system helps establish a logical key hierarchy and reduces the risk of unnecessary changes as the premises develop.
 

Why Choose Garrison Locks for Master Key Suites?

Garrison Locks combines specialist locksmith experience with an extensive range of professional security products.

Our in-house keying knowledge allows us to assist customers with master key arrangements, keyed-alike systems, compatible locking products and replacement cylinder requirements.

We understand that no two premises have identical access requirements. Our aim is to provide practical advice and suitable locking solutions based on the application, security requirements and intended key hierarchy.
 

Enquire About a Master Key Suite

Whether you require a small master keyed locking system, a keyed-alike cylinder arrangement or a more complex commercial master key suite, Garrison Locks can help.

Contact our sales team to discuss your requirements, including the number of locks, cylinder types, keying arrangements and required access levels.

Telephone: 01858 435 900

Email: enquiries@garrisonlocks.co.uk

Garrison Locks – Professional Master Key Systems, Keyed-Alike Locks & Specialist Security Solutions.