Deadbolt locks are installed to provide additional security for you and your family. The deadbolt needs to be installed in line with the door handle, but should remain at least six inches above or below the door handle. All the installation hardware is included with the deadbolt, as well as a template for you to place on the door. Using the template will greatly reduce the time involved with locating the deadbolt and locking mechanism.
Open the door. Measure from the floor 39 5/8ths of an inch from the floor and place a pencil mark. If the pencil mark is closer than 6 inches from the door knob, place another mark that is 6 inches from the door handle. The pencil mark will be the centerline of the deadbolt.