![]() To learn more about our door lock tests, check out our door lock buying guide. ![]() (And if you’re worried about thieves breaking in through windows, see our home security system ratings.) CR members can click on each model name for detailed ratings and reviews. We’ve also included four models to skip that performed poorly in our physical challenges and/or our tests specific to smart locks. The list has models from Bosma, Eufy, Kwikset, Medeco, Schlage, and Yale. “When this is the cause, replacing the included strike plate with a reinforced strike, which costs as little as $10, improves the lock’s resistance to kicking by magnitudes.”Īfter putting dozens of locks to the test, we’ve selected six of the best from our door lock ratings. “In our brute-force kick tests, the cause of failure is more often than not the short screws used to attach the strike plate to the door frame,” says Misha Kollontai, CR’s test engineer for door locks. They repeat the test eight times, with the ram raised to increasing heights-or until the lock fails. That’s why CR engineers conduct kick-in tests using a custom-built jig that swings a 100-pound steel battering ram against a locked door. But even if you’re diligent about locking up, you need a good deadbolt to thwart thieves. A deadbolt may be either single or double barrelled.Most burglaries involve criminals forcibly entering your home, according to Federal Bureau of Investigation statistics-and that includes coming through your front door.They're also likely to be found on garage and shed doors - particularly if the garage or shed in question is full of expensive tools. They are much more common on external doors than internal ones, but can be quickly installed should the need arise to keep a room locked. These types of locks are commonly used to reinforce existing locks such as key-in-knob or key-in-lever varieties, which tend to have fairly light security and are relatively easy to get around. Because it is not spring loaded, the bolt will stay out unless the door is unlocked again. Turning the key in the lock (or the twist knob on the back in the single barrel varieties) retracts the bolt mechanism in or out of the door frame to lock and unlock the door. In the double barrelled version, the key is required on both sides, which prevents lockout but can be a fire risk if the key is not present and the door needs to be used in an emergency. In the single barrel variety, there is a twist knob on the 'inside' side which engages the lock. Because the bolt is not spring loaded it requires a significant amount of force to pry it back - more than can practically be delivered in a break in.ĭeadbolts come in a number of different varieties - the most common differentiation, though, is between single- and double-barrelled varieties. This is in contrast with conventional spring bolt locks, which use a spring to hold the bolt in place, and which can be unlocked simply by turning the locking mechanism by hand.ĭeadbolts therefore increase security, because they cannot be opened at all without the right key. What is a deadbolt?Ī deadbolt (also known as a deadlock or a deadlatch) is a type of lock that cannot be rotated without a key. Vertical deadbolts help to prevent jimmying. ![]()
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