Where are tubular deadbolt locks typically mounted?

Tubular deadbolt locks are typically mounted above the doorknob for several reasons related to functionality and security. This positioning not only allows for easier access when locking and unlocking the door but also enhances security by placing the lock higher, making it more difficult for unauthorized individuals to reach and tamper with it.

The standard height for installation is often around 6 to 12 inches above the doorknob, which is a practical height for users while also being out of reach of most common tools that could be used for forced entry. Additionally, placing the deadbolt above the doorknob helps keep the entire locking mechanism more secure, as a common point of attack would be directly at the knob level.

The other options suggest locations that are either impractical for user accessibility, less secure, or not standard in design for tubular deadbolt installation. By understanding the common mounting practice, one can appreciate why the placement of a tubular deadbolt lock is crucial for both usability and security.