Some important things to keep in mind when selecting lock sets for an entrance door are which type of lock is most secure and what grade the lock has been assigned. It is also important to check the quality of the accessories that are sold with the lock set and buy a lock set that is suitable for the type of entrance door.
Deadbolt locks are the most secure type of exterior locking mechanism, according to Consumer Reports and State Farm. However, horizontal deadbolt locks are still susceptible to being pried away from the door. Vertical or surface-mounted deadbolts offer more security against prying. If the entrance door has glass windows, a double cylinder deadbolt offers the best protection, as it requires a key to be used both on the outside of the house and the inside, making it impossible for a person to break the glass in the door and reach in to unlock the deadbolt.
Key-in-knob locks are among the easiest to break into and should not be used alone. Likewise, keyless-entry electronic lock sets scored poorly in Consumer Reports testing and were easily broken into. Grade 3 lock sets should be avoided, as they give in easily to brute force and leave the home insecure.
Customers should select lock sets with a grade of 2 or 1 to be sure the lock offers enough protection. Many lock sets come with accessories such as strike plates that act as added protection against brute force break ins. Many strike plates performed poorly in Consumer Reports testing, and it may be necessary to buy a separate strike plate of higher quality to offer the most protection.