Simply put, a pair of hinges refers to two complete, individual hinge units. This is the standard way hinges are typically packaged and sold for many common applications.
Based on the common practice, as mentioned in the reference, a pair of hinges is two complete sets of hinges.
Why Are Hinges Sold in Pairs?
Hinges are designed to work together to allow objects, most commonly doors or lids, to pivot or swing open and closed. A single hinge provides a pivot point, but two or more are needed to provide stability and support the weight of the object, preventing sagging or misalignment.
- Common Usage: Applications like doors, cabinets, and chests typically require at least two hinges to function correctly and safely.
- Convenience: Selling hinges in pairs makes it convenient for consumers and tradespeople to purchase the required quantity for standard installations.
Typical Usage and Quantity
While hinges are commonly sold in pairs, the actual number needed for a project can vary:
- Most standard interior doors commonly use three hinges for optimal support and stability, especially over time. This ensures the door hangs straight and operates smoothly.
- Lighter applications, such as cabinet doors or small boxes, often require just two hinges.
- Heavier or larger doors may require four or more hinges.
Even though applications like doors might use three or more, hinges are still predominantly packaged and sold in pairs due to their fundamental design requirement for working in tandem. When you purchase a "pair," you are receiving two ready-to-install hinges.
What Does "Two Complete Sets" Mean?
When the definition refers to "two complete sets of hinges," it means you are getting two fully assembled or ready-to-assemble individual hinges. Each "complete set" includes all the necessary parts for one hinge unit, such as the two leaves (or plates) and the pin that joins them, ready to be installed on one side of the pivoting item and its frame.
Understanding that a pair consists of two separate, complete hinges is key when planning projects, ensuring you buy enough pairs for the total number of individual hinges required.
