Skip to content

How to Put a Door Lock On: A Step-by-Step Guide

This article is a collaborative effort, crafted and edited by a team of dedicated professionals.

Contributors: Muhammad Baballe Ahmad, Mehmet Cavas, Sudhir Chitnis, and Zhen-ya Liu.

✓ Verified & Tested Information

A step-by-step guide to putting a door lock on a door. This guide will show you how to put a door lock on a door in a few easy steps.

Preparing for Installation

Before you can install a door lock, you will need to make sure you have the right materials and tools for the job. Gather the required materials, such as the door knob, door latch, door striker plate, screws, and a drill. You’ll also need a screwdriver, a level and a tape measure to ensure everything is installed correctly. Once you have all the materials, you’ll be ready to begin the installation process.

Measure the thickness of the door

Before you begin installing a door lock, you should ensure that all of the components have been included in the kit. You will also need to check that all parts are designed to fit properly on your specific door. Measure the thickness of your door; typically interior doors range from 1-3/8″ to 1-3/4″, while entry doors usually measure 1-3/4″ to 2-1/4″. Make sure that the lockset kit includes components for the appropriate thick door type. If any piece is missing, contact customer service for help. Additionally, some locksets and knob styles will require different preparation before installation, so be sure to check the manufacturer’s instructions before proceeding with installation.

Choose the right type of lock for your door

When choosing a lock for your door, there is a wide variety of locks and sizes to choose from. Considerations when selecting a lock include the size of hole required to install the lock, the size of the backset (distance from the handle-side edge of the door to the center axis which passes through knob or lever), and whether you want it to be keyless or not.

Several common types of locks exist: deadbolt locks, latch-bolt locks, mortise locks, surface mount locks and rim mount locks. Deadbolts are commonly used on exterior doors because they are more secure than latch-bolt locks as they require both a turn of a key as well as manual operation for locking it. People typically purchase a single cylinder deadbolt, which operates by turning the thumbturn inside or with key from outside to engage or disengage, or double cylinder deadbolts (requires keys from both inside and outside) for added security.

Latch-bolt locks are spring operated and require no turning action to secure them; most residential entry doors use this type of hardware. Mortise locks offer additional security but require that an entryway be prepared with special frames prior to installation. Lastly surface mount and rim mount lcoks are typically installed on interior doors where protection is not needed since they can easily be removed if forced upon by an intruder.

It is important that any lock you choose fits your door correctly in order for it to properly work and also be able describe what kind of lock you need if consulted with security professionals when making your selection.

Gather the necessary tools and materials

Before installing a door lock, you’ll need to make sure that you have all of the necessary tools and materials on hand. Here is a list of items you will need:
– Door lock;
– Screwdriver;
– Hammer;
– Chisel or drill bit (as needed to create anchor holes);
– Anchors and screws;
– Drill or screwdriver with drill bits (if using machine screws).

Your door lock kit should include everything you need, including instructions. Additionally, make sure to measure the end of the door where the door lock will be installed so that you have an idea of what size driver/drill bit to use. If it does not, use a ruler or tape measure to determine the correct size for your installation. Lastly, be sure to read all provided instructions carefully in order to ensure accuracy during your installation project.

Removing the Old Lock

Removing the old door lock is the first step in the process of installing a new lock. Depending on the type of the old lock, you may need to use an Allen wrench, screwdriver, or other tools to remove it. The first step is to open the door, then locate the screws or bolts that secure the lock to the door. Once all the screws and bolts are removed, you can unfasten the lock and pull it away from the door.

Remove the screws from the door knob

To begin, you will need to remove the old lock. Begin by removing the screws at the door knobs on both sides of the door. For this step, you will need a screwdriver; many locks come with screws that require a Phillips head screwdriver. Depending on your doors, they may also require an Allen key. Carefully save all parts as they will be needed for installation of the new lock. If possible, avoid taking pictures so that you won’t get them mixed up or use a mobile app to organize them instead of paper labels.

Unscrew the latch plate from the door

The first step in how to replace a door lock is locating and removing the latch plate, or keeper plate. This is the metal plate affixed to the face of the door, surrounding either the doorknob or an interior handle. Unscrew the screws holding the latch plate in place with a screwdriver. Make sure to carefully store these screws so you can use them later on re-installing your new lock.

Remove the old lock from the door

When replacing an existing lock on a door, the first step is to remove the old lock. Depending on your lockset style and how it was installed, this process can vary greatly. To start, take a look at the other side of your door; if there is a face plate covering the nuts and bolts (known as an exposed trim set), then you’ll need to first remove it. Some face plates can be easily unscrewed with a screwdriver, while others may require using an Allen wrench or special tool from the manufacturer.

If your trim set is hidden from view, you’ll need to cover the gap between the doorknob and strike plate with painter’s tape in order to protect the surface of both when removing them. Use a slotted screwdriver or any other available tool to loosen up any screws that may be holding them in place. If your lockset uses standard screws for installation some locksets may require different sizes of screws so it’s best to double-check before proceeding. When all screws have been removed carefully pry off both doorknob and strike plate in one piece.

Once these are out of the way, use an appropriately-sized Allen wrench (or whatever tool was used for installation) to unscrew any remaining bolts that hold pick plates or spindles in place; then unthread their nuts completely before extracting them all from the hole they occupy within armature plate(s). Lastly, if there are any clamps around dead latch or bolt body (on cylindrical locksets) remove those as well before extracting entire assembly from door jamb/edge.

Installing the New Lock

Installing a new door lock can be a daunting task, but with careful preparation and the right tools, anybody can do it. This step-by-step guide will show you how to put a door lock on, from removing the old lock to installing the new one. Let’s get started!

Place the new lock in the door

Once you’ve gathered all the materials and prepared the door by removing the old lock, it’s time to position the new lock in place. The two sides of the lock should fit evenly inside the door frame and should line up with each other once inserted. Place one side of the lock onto the edge of your door and make sure it is secure before securing the other side. For proper installation, you will need to make sure that latch bolt lines up with mortise lockset for full use of your new lock. Carefully check how locks on both sides space out in order to make sure that there is not too much or too little space between them. Once everything looks right, secure each screw tightly into place with a screwdriver so that it cannot be moved. If needed, use wood shims or washers to balance out any uneven space or gaps between both sides of your new lock.

Secure the latch plate with the screws

Once you’ve determined that the lock is compatible with your door and positioned it properly, you’ll need to secure the latch plate with the screws inside the edge of the door. For regular knobs, take three screws and place them into the provided holes on either side of the latch plate, then use a screwdriver to tighten them until secure. If your knob has a more intricate design, it may come with different screw options. Make sure that all of your screws are inserted securely and tightened before moving onto the next step.

Install the door knob and secure with screws

Now that you have the door handles and lockset, it is time to install them. Installing a door knob is relatively simple when you have the right tools and materials. Before you start, make sure you have a Phillips head screwdriver of a size appropriate for your screws and a flat-head screwdriver for the latch assembly.

The following steps will help guide you through installing your door knob:
1. Begin by holding the outside door handle piece against the outside of your door where the lock should be installed. Align the hole in plate with one of the holes in your pre-drilled hole on your door then insert screws into each hole securing it to the wall or jamb of the door frame.
2. Next, slide in your latch assembly into its sleeve and secure it with two small flathead screws on either side of its sleeve. If necessary, use a small file to adjust it to fit properly.
3. Turn over your inside lock piece and press it against the inside of your door so that hole in plate aligns with one of pre-drilled holes and insert screws inserting them into each hole securing it to wall or jamb of door frame . Then insert latch assembly putting pressure on front edge by driving in screw from behind until all four corners fit tightly against wall or jamb surface as needed for adequate pressure/tension Adjustable tension might help ensure proper alignment after installation is complete; this should be done carefully as any adjustment made must still be able to correctly accept key if that model was purchased lo and behold if all has been completed correctly!

Testing the Lock

Before a door lock is installed, it is important to test it to make sure the latch is functioning properly. This can be done by manually inserting the key and turning it to make sure the knob turns and the lock opens. If the door does not open, then the lock is defective and must be replaced before it can be installed in the door. Testing the lock in this way will ensure that it is working properly and ready for installation.

Test the lock with the key

Now that your door lock has been successfully installed, the next step is to test to make sure it works. Your key should fit snugly in the keyhole, ensuring that the door will lock and unlock easily. Gently turn the key in both directions, first clockwise then counterclockwise. If you hear any scratching noises when turning the key or feel any resistance in either direction, it might be a sign that something is misaligned or not properly secured. Check to make sure all screws are tight, especially where the strike plate is and check for any damage on the key or inside of the lock. Make sure there are no debris obstructing the mechanism before retesting. If everything is secure and still functioning poorly, you may need to look into replacing your door lock entirely.

Test the lock without the key

Once you have installed the lock in the door, it’s important to test its security. Testing the lock without the key helps to ensure that your new lock is working correctly and will provide an adequate level of security. Follow these steps to test the security of your new lock:

1. Locate the slot on the knob where your key will be inserted when in use. It should be slightly angled away from you when standing in front of it.
2. Using a screwdriver, press gently on this area and turn it clockwise repeatedly until you hear a clicking sound each time as if you were inserting and turning a key within the slot. If there is no clicking sound, re-examine how securely you have attached your new lock to the door before continuing with this step.
3. Keep up this activity for several minutes or longer until you feel confident that it is functioning correctly with each click indicating that it has successfully passed through one position within its locking mechanism This signal of success gives assurance that your door locks will be fully secure when using keys at a later time.

Adjust the latch plate if necessary

If the door has a latch plate, such as on a sliding door, check to see if it needs to be adjusted to match the new lock. As you install the lock, take note of how it fits around the latch plate. If it appears too loose or too close, you may need to adjust the latch accordingly. To do this, first unscrew and remove any screws that are securing the latch plate in place. Then adjust the position of the latch plate using a flathead screwdriver or other appropriate tool so that the deadlock is fitted perfectly in its place. When you’re finished adjusting, secure any screws back into their original slots and test one more time before replacing any decorative plates over your lock if necessary.

Finishing Up

Now that you’ve learned the basics of how to put a door lock on, you can finish up the job with a few simple steps. You’ll need to test the lock to make sure it’s working correctly, and you may want to add a few finishing touches like a door handle or strike plate for extra security. Once the lock is installed, you can now enjoy the peace of mind that comes from knowing your home is secure from intruders.

Install the strike plate

Now that you are finished with installing the doorknob and the latch assembly, you must install the strike plate to complete your door lock installation. This play will hold the latch assembly in place when it is not engaged by the doorknob.

The strike plate should be located on the doorjamb directly across from the latch assembly, so before you begin installation make sure that it is positioned properly on the jamb. Use a screwdriver to secure it in place using screws of appropriate length.

Once secured, adjust the strike plate by turning its screws slightly until it fits flush with both sides of your door’s jamb. Finally, open and close your door several times to make sure it is installed correctly and engages properly with both parts of the lock. If not, adjust accordingly before you put all tools away!

Clean up any debris

Once all the components and tools have been assembled, the final step is to clean up any debris from the installation project. Start by collecting all of the materials you used for installation and put them in a designated area. Clear away any dust or dirt that accumulated during drilling, as this can get into the lock mechanism and cause it to malfunction. Make sure to thoroughly vacuum out any sawdust or particles left over from cutting in order to ensure that your new lock is able to function at its best capability. Once everything is cleaned up, you’re ready to enjoy your new door lock!

Test the lock one final time

Before putting the door back on, test the lock one final time to be sure it has been properly installed. Try both the single-action locking mechanism of the latch that immediately locks when you close the door, as well as the double-action locking mechanism of a deadbolt which requires that you actually turn a key or knob for it to lock. Once both mechanisms have been confirmed to be working correctly, your door and its new lock are ready to be fully installed.

How to Put a Door Lock On: A Step-by-Step GuideCheckout this video:

Share this Article