Which type of lock is commonly mounted on the surface of a door frame's interior?

The rim lock is specifically designed to be mounted on the surface of a door frame's interior, making it a popular choice for various types of doors. This lock type consists of a housing that is mounted on the surface of the door, typically on the interior side, with a bolt that slides into the door frame. Because of its design, it is relatively easy to install, often requiring only a few screws to secure it in place, and does not necessitate cutting into the door itself.

Understanding the installation methods for different types of locks further clarifies the role of the rim lock. Unlike mortise locks, which require a pocket to be cut into the door to accommodate the lock mechanism, and deadbolts that may also involve deeper modifications for optimal security, the rim lock simplifies this process by allowing for surface mounting. The convenience and accessibility of rim locks make them a frequent choice for interior doors, often providing a combination of security and ease of use.