Having been in the business for over 30 years, our team at Okey Locksmith has witnessed how business security has grown and changed in Oklahoma City and surrounding communities. One of the things we noticed is how many businesses—big or small—have been leaning more toward using master key systems. We’re going to discuss exactly why that is, and we’ll talk about how Okey Locksmith can help you set up a system that makes your life easier while keeping your business secure.
Master Key Systems: A Simple Explanation

Think about how many different locks you have in your business property—front doors, back entrances, office doors, storage rooms, maybe even restricted areas that only certain employees should have access to. Normally, each lock would require its own key, which means you’d need a giant keyring or a great memory to keep them organized.
A master key system simplifies everything. It’s a security setup where different keys can open different doors, but just one key, referred to as the “master key” can open them all. This means:
- Your employees can have keys that only open the areas they need access to.
- Managers, supervisors, or authorized personnel can have a key that works on multiple locks for multiple areas.
- You (or other top-level staff) can have a master key that opens every single lock in the system.
This kind of setup is used in places like office buildings, retail stores, hospitals, apartment complexes, warehouses, and even schools. It lets businesses manage access to specific areas, implement enhanced security, and make key management much easier and more convenient.
How Do Master Key Systems Work?

Now, here is a more technical and detailed explanation of master key systems: Master key systems use pin tumbler locks which contain small spring-loaded pins inside. Normally, a standard lock requires all the pins to be lifted to a specific height to allow the key to turn. In a master key system, extra pins (called master wafers or spacers) are added inside the lock and create multiple “shear lines.” This allows more than one key to work in the same lock.
Grand master key
Opens multiple doors or locks across multiple buildings or locations.
Master key
Opens all locks within a certain building or department.
Sub-master key
Opens a select group of locks within a specific area.
Change key (or individual key)
Opens just one specific lock and nothing else.
The hierarchical structure of this system is fully customizable, so you can decide who has access to what. It’s similar to creating security clearance levels, but this system uses physical keys instead of electronic codes. Getting a reliable locksmith in OKC to design and install it for you is an excellent way to experience all the benefits it has to offer.
Why Are OKC Business Owners Switching to Master Key Systems?

Oklahoma City is home to thousands of businesses, ranging from small startups to massive corporate offices. No matter the size, security should always be a top priority. Master key systems offer a simple but highly effective way to manage access and improve your building’s overall security.
Ultimately, many business owners and property managers have switched to master key systems because:
1. They Make Key Management Easier
If you’ve ever had to keep track of a huge set of keys, you have an idea of how time-consuming it is. Employees can forget their keys, misplace them, or mix them up, and these instances can slow down your operating processes if you don’t have backups in place.
With a master key system, you reduce the number of keys needed while still maintaining security. Instead of a bulky keyring, your managers or supervisors can carry just one or two keys that give them access to the areas they need. It’s simpler and far less stressful this way.
2. Better Security and Access Control
Not everyone in your company needs access to every single room. For instance, a cashier at a retail store doesn’t need access to the stockroom. A general employee at an office doesn’t need to get into the HR or server room.
A master key system lets you customize who can access specific areas, meaning only authorized personnel can enter certain spaces. This significantly reduces risks of theft, unauthorized access, and sensitive information being compromised.
3. Master Key Systems Grow With the Business
If your business is expanding, adding new offices, or even opening another location, you don’t have to scrap your entire security setup. Master key systems are highly scalable, meaning new locks and keys can be added as your company grows.
For example, if you own a chain of restaurants in OKC and you add a new location, you don’t need an entirely separate key system. A master key setup lets you integrate new locks into the existing hierarchy, so everything stays organized.
Access Control Systems: Taking Security a Step Further

While master key systems are great for physical key management, some businesses need an extra layer of control—especially those dealing with high-value inventory, confidential information, or multiple access levels.
Okey Locksmith installs access control systemsfor businesses (and homes) that want digital key management. These systems use things like:
Keycards or key fobs
Instead of physical keys, employees use programmed cards or fobs to lock and unlock doors.
Biometric scanners
Some businesses choose fingerprint or retinal scanners for high-security areas.
PIN codes
Keypads can be programmed with unique PINs for employees or guests.
With access control, you can track who enters and exits specific areas, manage remote entry, and even instantly revoke access if an employee leaves or is terminated. Many businesses in OKC combine master key systems with access control for a complete security setup.
Okey Locksmith OKC Offers Access Control System Services

Setting up a master key system requires expert planning. Aside from key services, our team at Okey Locksmith is a pro at designing, installing, and maintaining streamlined access control systems for residential and commercial properties across the city.
We Offer:
Security assessments
We’ll evaluate your business’s current lock setup and recommend the best access control system for you.
Custom master key design
Next, we’ll build a system that meets all your security needs.
Professional installation
Every lock will be installed properly to work properly within the system.
Maintenance or follow-up services
If you ever need to add new locks to your access control system or replace certain parts of the system, we can also help with that!
Upgrade Your Business Security System Today with Our Security Experts!
Looking for exceptional security solutions like access control systems and other reliable locksmith services like key duplication, lock rekeying, door lock repair, and emergency lockout services? Contact Okey Locksmith today to discuss your options and get customized services!










