How To Reinforce a Door With a Door Reinforcement Lock

Determine the door reinforcement lock placement

Once you have determined where you want your reinforcement lock installed, usually at shoulder height and above the deadbolt lock, close the door to ensure it fits between the door jamb and the door. Ensure you locate the reinforcement lock on the interior side of an inward-swinging door.

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Outline the lock and screw location

With the lock being held in the position where it will be installed, outline the profile with a pencil and mark holes for screws. You may want to use a small bullet level to ensure your lock is level and plumb.

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If the door doesn’t close, mortise the lock

If your door doesn’t close because the lock is in the way, you will need to mortise or recess your lock into the door jamb so it sits flush. This can be achieved by cutting around the pencil line where you outlined the lock with a sharp utility knife and clearing out a 1/8-in. deep recessed cavity using a hammer and chisel, beginning at the middle of the lock outline and working towards the pencil line. For best results, be sure to take your time and use a sharp chisel.

Install the screws

Most security lock systems will provide two lengths of screws. Whenever you add a security measure to reinforce your front door, it is essential to use longer screws and to ensure there is sufficient wood beneath the jamb surface to anchor them properly. If uncertain, begin with the shorter screws before attempting the longer ones. To maintain the lock’s level, drill pilot holes and secure the top and bottom screws first. Then, install the middle screw. These steps help enhance security at your front door effectively.

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Test the door reinforcement lock in a closed position

Once all screws have been seeded, close the door and test the reinforcement lock.

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FAQ

What is a reinforcement lock?

A door reinforcement lock is a compact, three-inch-ish tall security device that employs a spring-loaded mechanism to secure the interior side of a door. Reinforcement locks function similarly to a latch, effectively preventing the door from being forced open and thus enhancing protection against unauthorized access. These devices offer several advantages, including ease of use, keyless operation, and robust defense against various intrusion methods such as forced entry, lock picking, and lock bumping.

Is a door reinforcement lock enough to keep others out?

A door reinforcement lock is intended for use in addition to traditional door locks.  It is a reinforcement and not to be used as a principal locking mechanism.

Can I get a door reinforcement lock to match my existing door hardware?

Yes, the door reinforcement locks come in many finishes and colors. Shop around and you will find the finish you want in your desired budget.