To get the most out of your deadbolt locks, Altic Lock Service recommends the use of reinforced strike plates or door jamb reinforcement since most successful break-ins are a result of jamb failure. When the strike or jamb is reinforced, the next weakest point is the door edge where the bolt passes through. Keep in mind that most properly installed deadbolts will extend 1 inch from the edge of the door.
What you can't see is that the actual bolt is only about 1-1/2 inches long. When extended, more of the bolt is beyond the door than what remains in the door.
Exterior doors are commonly 1-3/4 inches thick, with a 1 inch hole drilled for the bolt. That leaves only 3/8 of an inch of material on either side of the bolt. Between the lock body and the bolt, there is only a hollow tube and the linkage connecting the bolt. Reinforcing this area is vital to protecting against forced entry. The jamb should be reinforced first, but don't ignore the vulnerability of the door edge. With the reinforcement shown below, the area is protected and the door edge is far less likely to split, as often happens during forced entry attempts.
Altic Lock Service currently provides a complete door protection package, which includes jamb, door edge, and hinge reinforcement. Optional savings are also available on door viewers and a sliding door deadbolt when you purchase the package. Package price available for a limited time only.