What is a Mortice Lock? When and Where to Use Them
When securing your property, choosing the right lock is a key decision. Mortice locks are a popular choice for various applications due to their robustness and versatility.
In this article, we’ll answer the question, “What is a mortice lock?” We’ll explore the different types of mortice locks and when and where to use them. We’ll also provide recommendations for which mortice lock kit types are suitable for various internal and external doors based on security needs.
What is a Mortice Lock?
Mortice locks, sometimes spelled “mortise locks,” are a type of lock installed within a pocket or “mortice” cut into the edge of a door frame. Unlike surface-mounted locks, mortice locks are recessed into the door itself, making them both secure and aesthetically pleasing.
Due to their durability and high level of security, these locks are commonly used in both residential and commercial settings.
The lock mechanism of a mortice lock typically includes a locking bolt that slides into the strike plate on the door jamb, ensuring the door stays securely closed.
Mortice locks are also available in various finishes, such as satin chrome or antique copper, to suit the design of your internal or external doors.
Types of Mortice Locks
Deadlocks
Deadlocks are the simplest type of mortice lock, featuring a single locking bolt operated by a key or turn snib. They are primarily used for added security with other door locks or latching mechanisms.
Nightlatches
Nightlatches in the mortice lock variety are only locked or released via a key or turn snib. Nightlatch mortice locks do not have lever operations and are typically used on service cupboards and sliding doors where a free lever to escape is not required.
European Style Cylinder Mortice Locks
European style cylinder mortice locks combine a latch and lock cylinder and sometimes a deadbolt into a single body, offering a compact and efficient locking solution. While they are not as common in Australia, these locks are frequently used on entrance doors in residential settings due to their practicality and sleek design. However, they do not comply with Australian commercial building fire door regulations. Despite their residential focus, don’t underestimate their potential – European-style cylinder mortice locks are an excellent choice for those seeking security and versatility.
Australian Mortice Locks
Australian mortice locks are specifically designed to meet the needs of the Australian and New Zealand markets. In Australia, most door frames are manufactured to accommodate universal striker plates, ensuring compatibility and ease of installation. These locks are available in various types, including vestibule, combination, night latch, sliding, and deadbolt, offering a wide array of functionality options. With their versatility and tailored design, Australian mortice locks are the ideal choice for a broad range of applications, from residential to commercial settings.
Sliding Door Mortice Locks
As the name suggests, sliding door mortice locks are used on sliding doors where privacy or key locking is required. When selecting a mortice lock for a sliding door, it is good to know if the sliding door is surface mounted or is a cavity slider and whether the lock needs to extend beyond the cavity slider jamb when fully open.
Swing Bolt deadlocks
Swing bolt deadlocks are commonly installed on aluminium glass doors at commercial tenancy entrances. They are often paired with back-to-back entry handles, providing convenient access to the premises. Combining the security of a deadbolt with the safety of a free lever handle for quick egress, these locks offer both functionality and peace of mind.
Bathroom Locks
Specifically designed for privacy rather than security, bathroom locks usually feature a thumb turn on the inside and a key or emergency release on the outside.
When and Where to Use Mortice Locks
Residential Properties
For residential properties, a double-cylinder mortice deadbolt is often used on front doors and back doors to ensure the premises remain secure. European cylinder locks are a great option for added versatility, combining a latch and deadbolt into a single lock body. Meanwhile, a lever mortice lock with privacy features is ideal for internal doors like bathrooms. A double-cylinder mortice lock on external doors provides enhanced security, making it a reliable choice for safeguarding your home.
Commercial Buildings
Australian mortice locks are widely used in commercial settings due to their suitability with pressed metal door frames and extensive functionality options. These locks are compatible with most fire door types and are readily available through locksmiths and hardware stores, making them a popular choice for the second-fit market.
Government Buildings
Government buildings require stringent security measures. Due to their robust security features, high-security Australian mortice locks are often used in these settings. Additionally, these locks can be integrated with access control systems for added security.
High-Security Areas
For high-security areas, such as banks or data centres, specialised mortice locks with advanced security features are essential. These locks often include multi-point locking systems and mechanisms resistant to drilling and picking, ensuring maximum protection. Additionally, enhanced security features, such as anti-pick and anti-drill technologies, are designed to prevent forced entry, making these locks ideal for safeguarding high-risk locations.
Recommendations for Different Doors and Buildings
Front Doors
For front doors, a combination of a latching lock and a deadlock is recommended. This provides both convenience and high security, ensuring that the door is securely locked when not in use. For entrance doors, a lever mortice lock in satin chrome or polished brass provides both security and style.
Internal Doors
For internal doors, such as bedrooms, a mortice lock kit with a simple latching and lock mechanism and privacy features is recommended. For bathroom doors, a specialised bathroom lock with a thumb turn and emergency release is recommended.
Commercial Entrances
For commercial entrances, swing bolt deadlocks or Australian mortice locks are highly recommended due to their easily replaceable cylinders and high-security features. Lockwood mortice locks or rim locks are ideal for securing external doors. These locks can also be integrated with electronic access control systems for added convenience and security.
High-Security Areas
For high-security areas, multi-point locking devices, combined with high-security master keyed cylinders, provide maximum security for high-risk zones. Specialised mortice locks with anti-drill and anti-pick features and multi-locking points should be considered.
Conclusion
Mortice locks are a versatile and secure option for various applications, from residential properties to high-security areas. By understanding the different types of mortice locks and their features, you can choose the best solution for your needs.
At John Barnes Group, we offer a wide range of door locks, including traditional mortice locks, lever mortice, and sash locks, ensuring your property is always secure.