What is the difference between a single cylinder and a double cylinder handleset?

The primary difference between a single cylinder and a double cylinder handleset is the mechanism used to lock the door and the way they are operated. A single cylinder handleset features a cylinder on one side that is operated by a key from the outside, while the inside has a thumb turn or lever that allows for easy locking and unlocking without a key. This design is common and convenient for residential settings, as it offers quick access from the inside while still providing security when locked from the outside. In contrast, a double cylinder handleset contains a locked cylinder on both sides of the door. To unlock or lock the door from either side, a key must be used. While this offers an enhanced level of security, particularly for doors with glass panels or windows nearby, it can also pose challenges in emergencies. In the event of a fire or other urgent situation, individuals may find it difficult to exit the house quickly if they have to search for a key to unlock the door from the inside. When selecting between a single cylinder and a double cylinder handleset, it is important to consider the specific needs for security and convenience for your entryway, as well as any local building codes or regulations that may apply. For more detailed information and to explore options available, one could visit the Handlesets.com website, which provides descriptions of various handleset models and their features. It is advisable to consider these factors to ensure the best choice is made for your home.