What Is A Mortise Lock?

Ever wondered how to secure your home or business effectively? A mortise lock could be the answer. These locks are renowned for their superior security features.
In this post, we’ll explore what a mortise lock is and why it's essential for safeguarding your property. You’ll also learn about TOPTEK, a leader in the mortise lock industry, and why their locks are a trusted choice.

Understanding Mortise Locks: A Definition

What is a Mortise Lock?

A mortise lock is a high-security locking system used in doors. It is built to be embedded into the door, making it a more secure option compared to regular locks. Unlike traditional cylindrical locks, mortise locks are installed within a pocket, or "mortise," cut into the edge of the door.

A typical mortise lock consists of three main components: the lock body, the lock cylinder, and the faceplate (which could include a handle or knob). These parts work together to provide a strong and secure locking mechanism. Mortise locks are often considered more secure because of their durable construction and hidden installation. This design makes it harder for burglars to tamper with or bypass the lock.

How Does a Mortise Lock Work?

Mortise locks function by using a combination of a lock body, lock cylinder, and faceplate. The lock body houses the mechanism that controls the latch and bolt, while the lock cylinder holds the key or knob that operates the mechanism. The faceplate ensures the lock is securely attached to the door.

One key feature of a mortise lock is the mortise cut — the pocket created in the door to fit the lock body. This cut provides the necessary space to securely house the lock, ensuring it fits tightly and can't be easily removed.

Additionally, mortise locks often come with anti-pick designs and high-security cylinders. These features, like the EN12209 certification, enhance the lock's resistance to tampering and picking, making it a reliable security solution for both residential and commercial properties.

Key Features of Mortise Locks

Lock Body

The lock body is the main component of a mortise lock. It houses the internal locking mechanism. Materials like 304 stainless steel and iron are commonly used for durability and strength. Stainless steel, in particular, is highly resistant to corrosion, making it ideal for doors in high-traffic areas or environments exposed to harsh weather.

TOPTEK Example	EKFL6068 Mortise Lock
Material	304 Stainless Steel
Cycle Support	Up to 200,000 cycles

Lock Cylinder

The lock cylinder is the part of the lock where the key or knob is inserted. It is essential for controlling the lock's operation. Mortise locks typically feature European standard cylindrical locks, which are known for their high level of security. These cylinders offer advanced anti-pick protection, making them more resistant to tampering compared to standard cylinders.

Faceplate

The faceplate is the outer part of the mortise lock, typically visible on the door. It helps to secure the lock and enhances its overall design. Mortise locks come in various faceplate types, including single or double heads, and can feature handles or knobs.

Design options are customizable. For example, 304 stainless steel faceplates offer a balance between aesthetics and corrosion resistance, ensuring the lock looks good while providing durability.

Durability and Lifespan

Mortise locks are designed to withstand frequent use. They are often tested to handle up to 200,000 cycles (like in the EN 12209 standard). This makes them highly reliable for doors that experience a lot of traffic, such as in commercial buildings or high-security areas.

Moreover, these locks are built to endure harsh environments. Models made with corrosion-resistant materials can hold up in humid or outdoor conditions, ensuring they last longer and continue to function smoothly.

Types of Mortise Locks: Which One is Right for You?

Single Deadbolt Mortise Locks (Commercial Use)

Single deadbolt mortise locks are ideal for commercial buildings. They are designed to provide high security and are built for frequent use. Features like anti-pick design and heavy-duty construction ensure that these locks are resistant to tampering and break-ins.

These locks are commonly used in airports, office buildings, and shopping malls, where security is a top priority. Their durability and robust design make them a reliable choice for protecting commercial properties.

Double Deadbolt Mortise Locks (Residential Use)

Double deadbolt mortise locks are perfect for residential applications. These locks provide enhanced security for homes and hotels, making them ideal for main entry doors or internal room doors. The dual lock mechanism offers an extra layer of protection, especially in areas needing high security.

TOPTEK Example	EKFL6068 Mortise Lock
Lock Type	Double Deadbolt
Suitable For	Apartments, Hotels

Button-Style Mortise Locks (Privacy Locks)

Button-style mortise locks are designed for private spaces like bathrooms, offices, and bedrooms. These locks are perfect for areas where privacy is essential but where high security isn't necessarily required. The button lock mechanism allows for easy locking from the inside, while the outside remains accessible when unlocked.

These locks are commonly used in bathrooms and bedrooms, where personal security is important, but quick access is also a priority in case of emergency.

Key Benefits of Mortise Locks

Enhanced Security

Mortise locks are considered more secure than traditional locks for several reasons. Their design makes them harder to tamper with, and they are less likely to be picked or bypassed. Anti-pick and anti-saw technologies are built into most mortise locks, making them ideal for high-security areas like commercial buildings, airports, and hospitals.

These locks provide strong protection against forced entry, which is why they are often chosen for properties where security is a top priority.

Durability and Reliability

Mortise locks are built to withstand heavy use. They undergo 200,000 cycle tests to ensure durability, which is essential in high-traffic environments. This makes them reliable for commercial and residential buildings where doors are frequently used.

TOPTEK Example	EKFL6068 Mortise Lock
Cycle Test	20,000 cycles
Use	High-traffic areas

Aesthetic Appeal

In addition to their security features, mortise locks offer a sophisticated look. These locks are often used in high-end commercial and residential doors, adding an elegant touch to any property.

Mortise locks can be customized to match premium materials like 304 stainless steel, which not only adds to their durability but also enhances the overall appearance of the door.

Mortise Lock Installation: How Is It Done?

Step-by-Step Mortise Lock Installation Guide

Installing a mortise lock requires careful preparation and the right tools. Follow these steps for a successful installation:

1. Cut the Mortise:

• Use a chisel to create a pocket (mortise) in the door edge. Ensure the mortise is deep enough for the lock body.

• Mark the area where the lock will sit, ensuring it aligns with the doorframe.

2. Prepare the Door:

• Drill holes for the lock cylinder and faceplate. Ensure the holes are precise and properly sized.

• Use a drill bit that fits the diameter of the lock cylinder.

3. Insert the Lock Body:

• Place the lock body into the mortise and check that it fits snugly.

• Secure the lock body in place using screws.

4. Install the Lock Cylinder and Faceplate:

• Insert the lock cylinder into the door, making sure it aligns with the lock body.

• Attach the faceplate and handle/knob, ensuring all components are properly aligned.

5. Test the Lock:

• Turn the key or knob to check if the lock operates smoothly. Adjust the lock if necessary.

Tools Needed:

• Chisel

• Drill

• Screwdriver

• Tape measure

Door Preparation Tips:

• Make sure the door is level before you start.

• Take accurate measurements to avoid mistakes during installation.

Can You Install a Mortise Lock Yourself?

Yes, it is possible to install a mortise lock yourself if you have the right tools and skills. Here are some tips for DIY installation:

• Take your time: Ensure each step is done carefully, as precision is key.

• Use proper tools: Ensure you have the right drill bits and chisels for the job.

When to Hire a Professional:

• If you're unsure about cutting the mortise or aligning the lock properly, it’s best to hire a professional locksmith.

• Professional-grade mortise locks may require more expertise than basic locks, especially when installing in thick or non-standard doors.

Mortise Lock Applications: Where Are They Used?

Residential Applications

Mortise locks are commonly used in homes for a variety of doors. They offer a higher level of security and privacy compared to standard locks. These locks are typically used on exterior doors, bedroom doors, and bathrooms, where privacy is important.

Lock Type	Recommended Use
Single Deadbolt	Main Entry Doors
Double Deadbolt	High-Security Areas
Button-Style	Private Rooms (Bathrooms, Offices)

Commercial Applications

In commercial settings, mortise locks are essential for providing high security. These areas, such as offices, hotels, and commercial buildings, require durable and tamper-resistant locks to protect valuable assets and maintain safety.

• Mortise locks often come with EN12209 certification, making them suitable for fire doors and high-security areas.

• They are designed to withstand heavy use, which makes them ideal for buildings with high foot traffic.

Industrial Applications

Mortise locks are also used in industrial environments where durability and tamper resistance are critical. They are often found on electrical boxes, security gates, and other areas that need high levels of protection.

• In these rugged environments, mortise locks provide a solid solution to prevent tampering or vandalism.

• Their ability to resist weathering and physical damage makes them a great choice for outdoor installations or harsh industrial settings.

Mortise Lock Standards and Certifications: Ensuring Quality and Security

EN12209 Certification (European Standard)

The EN12209 standard is a European certification that guarantees the quality and durability of mortise locks. This certification ensures that the lock has passed rigorous tests for strength, durability, and fire resistance, making it a reliable option for high-security areas.

Benefit	Feature
Durability	High-traffic performance
Fire Resistance	Fire-rated certification

TOPTEK Example: Mortise locks that comply with EN12209 are ideal for high-traffic commercial spaces, offering long-lasting security and fire protection.

Mortise Lock vs. Other Types of Locks: What’s the Difference?

Mortise Locks vs. Cylinder Locks

• Security: Mortise locks are generally more secure than cylinder locks. Their design makes them more resistant to tampering and picking. Mortise locks often include additional features like anti-pick and anti-saw technologies.

• Installation: Cylinder locks are usually easier to install because they don’t require cutting a pocket (mortise) in the door. Mortise locks, on the other hand, need a specialized installation process but offer enhanced durability once installed.

• Use Cases: Cylinder locks are commonly found in residential settings, whereas mortise locks are used in both residential and commercial environments for higher security needs.

Mortise Locks vs. Rim Locks

• Design and Installation: Mortise locks are embedded into the door, providing a more secure and tamper-resistant solution. Rim locks, however, are mounted on the surface of the door, making them easier to install but less secure.

• When Rim Locks Are Preferred: Rim locks are often used in older homes or situations where ease of installation is a priority over security. They may also be chosen for interior doors where high security isn’t required.

Mortise Lock Maintenance: How to Keep Your Lock Working Perfectly

Regular Cleaning and Lubrication

To keep your mortise lock in top condition, regular maintenance is key. Start by cleaning it to remove dirt, dust, or grime that can affect its performance.

• Lubrication: Apply lubricant to the lock mechanism to ensure smooth operation. This helps prevent the lock from sticking or jamming.

• Recommended Lubricants: Use graphite-based or silicone lubricants for better performance. These lubricants work well to reduce friction and prevent wear on internal components.

When to Replace a Mortise Lock

Like any mechanical device, mortise locks have a lifespan. Here’s how to know when it’s time to replace or service your lock.

• Signs of Wear: If you’re having trouble turning the key or handle, or if the lock feels stiff, it may need attention.

• Misalignment: If the lock body becomes misaligned, the lock won’t operate properly. This could be a sign that it's time for a replacement.

Warning Signs:

• Difficulty turning the key

• Stiff or unresponsive handle

• Misalignment of the lock body

If you notice any of these issues, it's time to consider maintenance or replacement to keep your lock functioning properly.

Mortise Lock Prices: How Much Does a Mortise Lock Cost?

Price Range of Mortise Locks

The cost of a mortise lock can vary based on several factors such as features, materials, and security certifications.

• Residential Mortise Locks: Typically, these locks range from $30 to $150 depending on features like anti-pick technology and basic materials.

• Commercial Mortise Locks: These are more expensive, usually between $100 and $500. Commercial-grade locks often come with enhanced security features like fire resistance and durability for high-traffic areas.

TOPTEK Example: Premium mortise locks, like TOPTEK's EKFL6068, may cost more upfront but offer extended durability and security certifications like EN12209, making them worth the investment.

Factors Affecting the Cost of Mortise Locks

Several factors influence the price of a mortise lock. Here’s a breakdown of what affects the cost:

• Material: High-quality materials, such as 304 stainless steel, typically cost more due to their corrosion resistance and durability.

• Brand: Established brands like TOPTEK often charge a premium for their products due to their reputation and reliability.

• Security Features: Locks with advanced security features like anti-pick or fire-resistant certifications tend to be more expensive.

• Custom-Built Mortise Locks: Locks designed for specific applications (e.g., customized sizes or features) can cost more due to the specialized manufacturing process.

These factors make it important to choose a lock based on your security needs and budget.

Choosing the Right Mortise Lock for Your Needs

Factors to Consider When Buying a Mortise Lock

When selecting a mortise lock, it’s important to consider your specific needs to ensure the best choice. Here are key factors to keep in mind:

• Security Requirements: Consider how secure the area needs to be. If you're protecting a high-traffic commercial building, you may need a more robust lock with fire-resistant features.

• Material: Look for durable materials like 304 stainless steel for enhanced strength and corrosion resistance, especially for exterior doors.

• Door Thickness: Make sure the mortise lock is compatible with your door's thickness. Some locks are adjustable, but always check specifications before buying.

• Certifications: Choose locks with relevant certifications like EN12209 for durability and fire resistance. Reputable brands, like TOPTEK, often offer locks that meet these standards.

How to Choose Between Different Mortise Lock Types

Once you've considered the factors above, it’s time to decide on the right type of mortise lock for your needs:

• Single or Double Deadbolts:

• Choose a single deadbolt for standard residential use. It’s typically sufficient for entry doors.

• Opt for a double deadbolt when additional security is required, such as for high-risk commercial settings or apartment buildings.

• Button-Style Locks:

• Perfect for rooms where privacy is a priority, like bathrooms or offices. These locks are easy to use and provide sufficient security for private spaces.

Additionally, think about fire resistance for buildings that require fire-rated doors. Privacy needs should also be factored in, particularly for personal rooms or office spaces.

Conclusion

Summary of Key Benefits

Mortise locks offer superior security, durability, and design. They are perfect for both residential and commercial properties.

Final Thoughts

Mortise locks are a great choice for anyone looking to enhance their property’s security. They are reliable, sturdy, and highly secure.

Call to Action

Consider upgrading to a mortise lock for your next security project. TOPTEK offers high-quality mortise locks that meet all your security needs.