Table of Contents

• Introduction
• Types of Rim Lock
• Why Choose a Rim Lock
• What do Rim Locks do
• How do Rim Locks Work
• Difference Between a Sash Lock & a Rim Lock
• Conclusion

What is a Rim Lock? 

 

Introduction

Welcome to our latest blog article, "What is a Rim Lock?" In this piece, we delve into the fascinating world of door-locking systems, focusing on one of the earliest types - the rim lock.

Rim locks have a rich history and unique characteristics that set them apart from other types of locks. Unlike most modern locks, which are morticed or embedded into the edge of the door, rim locks are surface mounted. This means they are installed on the surface of the door, adding a distinctive aesthetic element to your door's design.

One of the intriguing aspects of rim locks is their placement. They can only be used on either the left or right side of the door. To fully appreciate the lock, it needs to be on the side of the door that opens towards you.

In terms of operation, rim locks diverge from the norm once again. Instead of the commonly used lever handles, door knobs are employed to operate the catch, adding a touch of vintage charm to your doors.

Finally, it's worth noting that rim locks come in a variety of types. There are left and right options, sometimes referred to as 'handed', as well as reversible locks. Additionally, there are bathroom and snib versions, which are perfect for maintaining privacy in bedrooms and bathrooms.

 

Types of Rim Lock

In our exploration of rim locks, it's essential to understand the different types available. Each type has unique characteristics and uses, making them suitable for various applications. As we've mentioned, rim locks are surface mounted, setting them apart from the modern locking systems that are morticed into the side of the door. Now, let's delve into the various types of rim locks.

HANDED RIM LOCKS

The first type we'll discuss is what's known as a 'handed' rim lock. These locks are designed to work specifically on either the left or right side of the door. This means that when purchasing a handed rim lock, you must be careful to choose the correct one for your door's orientation. For more guidance on this, please refer to our HANDING GUIDE .

REVERSIBLE LATCH RIM LOCKS

Next, we have reversible latch rim locks. These locks are designed with convenience in mind. The key will operate the lock in the normal orientation, regardless of which side the lock is mounted on. Additionally, the built-in escutcheon has a round cut-out at the top and bottom, giving the appearance that the lock is mounted correctly, no matter the orientation.

PRIVACY RIM LOCKS

Privacy rim locks are another type to consider. These locks come with a built-in catch that can be slid across to secure the door. However, it's important to note that there is no mechanism to release the catch from the other side of the door. This feature makes them ideal for rooms where privacy is paramount, such as bedrooms and bathrooms.

DEAD LOCK RIM LOCKS

Finally, we have the deadlock rim locks. These are simple, key-operated systems typically used with a separate lever handle or door knob. They provide a level of security and are often used on external doors.

Understanding the different types of rim locks can help you choose the right one for your needs. Whether you're looking for privacy, convenience, or security, there's a rim lock designed to meet your requirements.

Why Choose a Rim Lock

Choosing the right hardware for your property is a deeply personal decision. It's about finding the perfect balance between functionality, aesthetics, and personal style. Rim locks, with their wide variety of styles, materials, and finishes, offer a unique choice for those looking to add a touch of vintage charm to their homes. But why should you choose a rim lock?

The answer to this question lies in the unique characteristics of rim locks. These locks are not just functional devices; they are pieces of history that add a distinctive aesthetic element to your doors. They are surface mounted, allowing the design and material to be showcased, unlike modern locks that are morticed into the door and largely hidden from view.

However, it's important to note that rim locks are not suitable for every property. They truly shine in period properties, where their vintage charm complements the overall design of the home. In these settings, rim locks can enhance the authenticity and character of the property, serving as a conversation piece as well as a functional lock.

On the other hand, rim locks may not be the best choice for modern properties with minimalist designs. Their distinctive look and surface-mounted design can clash with the clean lines and hidden hardware that characterise modern aesthetics.

In conclusion, choosing a rim lock is about more than just securing a door. It's about embracing a piece of history, showcasing craftsmanship, and enhancing the character of your home. If you own a period property and want to maintain its historical charm, a rim lock could be the perfect choice for you.

What do Rim Locks do

In our journey through the world of rim locks, we've explored their history and the different types available. Now, let's delve into what rim locks do.

At their most basic, rim locks serve to open and close a door. They provide the ability to keep a door closed with a sprung catch, and they can also lock a door using a key or a sliding snib. However, to truly appreciate rim locks, we must look beyond their basic functionality.

Rim locks are far more than simple locking devices. They carry a long history and add a touch of vintage charm to any property, especially period homes. In contrast to modern properties that typically use sash locks and tubular latches, rim locks offer a unique aesthetic appeal.

Modern locking systems, such as sash locks and tubular latches, are mostly hidden from view. Apart from the faceplate on the edge of the door, the working parts of these locks are invisible because they are morticed into the body of the door. This design prioritizes function over form.

Rim locks, on the other hand, celebrate both function and form. Being surface mounted, they offer an opportunity to showcase the lock's design and material. Whether it's a beautifully crafted brass lock or an intricately designed iron one, a rim lock can serve as a statement piece on your door.

In conclusion, rim locks do more than just secure a door. They offer a blend of functionality, history, and aesthetics, making them a unique choice for those looking to add a touch of vintage charm to their properties. Whether you're restoring a period property or simply want to add a unique design element to your doors, rim locks are a worthy consideration.

How do Rim Locks Work

In our exploration of rim locks, we've discussed their history, types, functions, and reasons to choose them. Now, let's delve into the mechanics of how rim locks work.

Rim locks operate on a simple mechanism. They always have a retractable catch, which is the part that keeps the door closed when it's not locked. In addition to this, they may have a key-operated deadbolt or a hand-operated snib, which provides an additional layer of security.

However, it's important to note that rim locks are not recommended for use on external doors, especially those that open outwards. This recommendation is based on two main reasons.

Firstly, the key mechanism within a rim lock is typically a 3-lever system. While this provides a basic level of security, it may not meet the requirements of your insurer. Most insurance companies insist on the installation of an approved 5-lever system for external doors, which offers a higher level of security.

Secondly, if a rim lock is installed on the outside of a door, it could be easily attacked by an intruder. Being surface mounted, rim locks are more exposed and therefore more vulnerable than locks that are morticed into the door.

In conclusion, rim locks are simple locking devices that are primarily used for their aesthetic appeal. They add a touch of vintage charm to your doors and are ideal for use in period properties. However, when it comes to security, especially for external doors, it's advisable to consider other types of locks that offer a higher level of protection.

Difference Between a Sash Lock & a Rim Lock

In the world of door locks, two types often come up for comparison: sash locks and rim locks. Both serve the same fundamental purpose of securing a door, but they differ significantly in design, installation, and application.

RIM LOCKS

As we've discussed throughout this blog, rim locks are an early type of door lock. They are surface mounted, meaning they are installed on the surface of the door. This design makes them visible on the side of the door that opens towards you. Rim locks come in various configurations and are typically operated using door knobs. They add a touch of vintage charm to your doors and are ideal for use in period properties. However, their application is limited by the way a door is hung or opened.

SASH LOCKS

On the other hand, sash locks and tubular latches are relatively modern inventions. Unlike rim locks, they are morticed into the edge of the door. This design means that only the faceplate is visible, making them a more subtle option compared to rim locks. Sash locks can be operated using lever handles, door knobs, or lever on rose door handles, offering more flexibility in terms of hardware choice.

The main advantage of sash locks over rim locks is their versatility. They can be configured to work with any door, regardless of how it opens or is hung. This makes them a more flexible choice for modern properties.

In conclusion, the choice between a sash lock and a rim lock largely depends on the style of your property and your personal preference. If you're looking for a lock that blends seamlessly into your door and offers more flexibility in terms of operation, a sash lock might be the right choice. However, if you're aiming to maintain the historical charm of a period property, a rim lock could be the perfect fit.

Conclusion

In conclusion, here are the key points we've covered about rim locks in this article:

• Rim locks are one of the earliest types of door locking systems, often used in period properties for their vintage charm.
• Unlike modern locks, rim locks are surface mounted, adding a distinctive aesthetic element to your door's design.
• They can only be used on either the left or right side of the door and to fully appreciate their beauty, they need to be on the side of the door that opens towards you.
• Door knobs are used instead of lever handles to operate the catch in rim locks.
• There are various types of rim locks, including handed, reversible, privacy, and deadlock rim locks.
• Rim locks serve to open and close a door, with the ability to keep a door closed with a sprung catch, and they can also lock a door using a key or a sliding snib.
• While rim locks add a unique aesthetic appeal, they may not be suitable for modern properties with minimalist designs.
• Rim locks operate on a simple mechanism and are not recommended for use on external doors due to security concerns.
• Sash locks and tubular latches are modern alternatives to rim locks, offering more flexibility and security, but lacking the vintage charm of rim locks.

Whether you're restoring a period property or simply want to add a unique design element to your doors, rim locks are a worthy consideration. However, it's important to consider your security needs and the style of your property when choosing the right lock.