Door knobs are ubiquitous objects found in almost every building. They serve as handles for opening and closing doors and come in various shapes, sizes, and materials. Common materials for door knobs include metal, such as brass, stainless steel, or bronze, as well as plastic and glass.
There are several types of door knobs:
Passage Door Knobs: These are basic knobs used on interior doors that do not require locking, such as closet or pantry doors.
Privacy Door Knobs: These knobs have a locking mechanism and are commonly used on bathroom and bedroom doors for privacy.
Entry Door Knobs: Also known as keyed entry knobs, these have a keyed lock for security and are typically used on exterior doors.
Dummy Door Knobs: These knobs are purely decorative and don't turn or have any mechanism. They are often used on closet doors or double doors where one side is inactive.
Electronic Door Knobs: These are modern door knobs equipped with electronic keypads or fingerprint scanners for keyless entry.
Door knobs have evolved over time, from simple wooden mechanisms to more complex designs with added features like security enhancements and electronic access control. They play a significant role in both the aesthetics and functionality of doors in homes, offices, and other buildings.
