Depending on the type of structure the lock is on, you will need either a residential locksmith or a commercial locksmith. It should be possible to do this work yourself, but for the sake of time and assurance that the process will work, consider contacting a locksmith.
#Deadbolt installation install#
Then you can take the door knob off the door and install your new deadbolt. You want to make sure that your replacement deadbolt fits the bore and cross bore style of your door knob. When you replace a door knob with a deadbolt, there are three essential steps in the process.
#Deadbolt installation how to#
How to Replace A Door Knob With A Deadbolt Most modern locks will have an adjustable bolt work length so the device can fit either of the two back set lengths for the cross bore. The general shape of door knobs and deadbolts is two pieces on the front and back with the bolt work sandwiched in between. The hole is 1 inch in diameter but has two standardized back set lengths of either 2 ¾ or 2 ⅜ inches. Your bolt or spring-loaded latch extends out of this hole.
The hole has a standardized 2 ⅛ inch diameter.Ĭross Bore – The smaller hole in the side of the door that lines up with the strike plate. That means fitting both the bore hole and cross bore that exist on the current door.īore Hole – The large hole that goes from the interior to the exterior side of the door where the knob and deadbolt are installed. To replace a door knob with a deadbolt, you are relying on the fact that both the new and old devices have the same dimensions. You can improve door security by adding metal sleeves around your lock hardware or by replacing a door knob with a deadbolt rather than making an additional bore hole and cross bore. More holes in a door mean more potential weak points. Does drilling more lock holes in a door weaken the door? Exceptions include switching to the euro cylinder style deadbolt or otherwise deviating from the standard USA lock type. In most cases, it will be as easy as removing and replacing. To replace a door knob with a deadbolt, you rarely need to make any adjustments to the bore or cross bore holes. Will a deadbolt fit in a hole cut for a door knob? Exceptions include mortise locks, which are often used in commercial settings. The cross bore from the bore hole to the side of the door where the bolt or latch will extend is either 2 ¾ or 2 ⅜ inches long. USA door locks have a standard size, so they can fit a 2 ⅛ inch diameter bore hole. When you replace a door knob with a deadbolt, your key or thumbturn acts as the handle. If you don’t want the wind blowing open the door, a contact point where the latch/bolt can be retracted, and the door can be pushed or pulled open is necessary. If you put a deadbolt on a hollow core door, the door is still extremely weak.
Exterior entrances use solid core doors versus hollow core doors that are used on interior entrances. However, there are some exceptions, and changing locks in this way is not always a good idea.īefore you replace a door knob with a deadbolt, you should review:įAQs Can you put a deadbolt on an inside door?ĭeadbolts are rarely appropriate for Interior doors because they are a mismatch of security. In most cases, you can replace a door knob with a deadbolt. Can you replace a door knob with a deadbolt? The short answer is yes.
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