Before you purchase Level locks, you want to make sure the lock will fit in your door. If your door has the measurements mentioned in the ANSI standards for residential doors, you should be okay. These measurements include:
(ANSI, the American National Standards Institute, is an organization that coordinates, develops, and maintains voluntary performance standards for builder’s hardware, like deadbolt locks. Level locks adhere to ANSI standards 156.40 and 156.25.)