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How to Install a Door Lock Set

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 door lock set is a great way to add an extra layer of security to your home. In this blog post, we’ll show you how to install a door lock set in just a few simple steps.


Before you install a door lock set, it’s important to properly prepare for the task. This includes gathering the tools you’ll need, measuring the door, and removing the old lock set. Additionally, you’ll need to purchase the appropriate door lock set for the door you are installing it on. All these steps must be completed before you can start the installation process.

Gather the necessary tools and materials

Before you install a door lock set, you must gather all the necessary tools and materials. For this job, you should have the following:

-Power drill
-Hole saw bit
-Chisel or utility knife
-Putty knife or spackle knife
-Measuring tape

You should also have the materials needed for installation, such as:
-Door lock set and replacement screws (if necessary)
-Wood shims and door frame spacers (if necessary)
-Wood filler or spackle to fill in any gaps or holes created when drilling into the door frame
-Mortise fittings for mortised locksets (if applicable)

When gathering these items, make sure they are all in good working condition, as any faulty tools could lead to improper installation of your door lock set.

Measure the door and determine the type of lock set you need

Prior to purchasing your lock and door knobs, it is important to measure the door in order to determine the type of lock set that you need. You would not want to purchase a lock set that will not fit or one that is designed for a hollow core door when your door is actually an exterior solid wood or metal door.

Measure the width of the door at its widest point, which will usually measure 2 inch. If your current strike plate is 2 inch wide then you have an exterior solid core or Metal Door. Check as well if your existing bore hole measures two inches and two preparing holes found on each side of dead bolt which measures 1 inch in length and inch deep than you have a standard bore installation needed.


Installing a new door lock set is a straightforward process and one that can be done by even the most novice of DIYers. The first step is to gather all the necessary tools and supplies. These will include the door lock set, a drill, a screwdriver, a level, and any other materials needed for installation such as screws and shims. Once you have all of the supplies, you can begin the installation process.

Install the latch and strike plate

Before installing the latch and strike plate, first gather the necessary tools for the task: an adjustable wrench, a power drill, drill bits, a screwdriver, and Phillips head screws. With all supplies at hand, install the door latch into the door. Commonly designed with interior and exterior parts connected by a spindle, insert the latch assembly into the edge of the door where it will fit most snugly. Hold it in place while drilling two pilot holes through both halves of the frame before inserting Phillips head screws to fasten them together.

Securely fasten to flat surface with two pieces of wood behind it if required; this is typically necessary when fitting metal doors or frames made from composite materials. If you are fitting a deadbolt above this entry lock set then check that both components are properly aligned and check if there is any special instructions for existing knobs or handlesets in relation to hole locations for mounting hardware.

Once everything is aligned properly choose whether you want a mortise strike plate or an adjustable strike plate. A mortise pocket should have already been cut in your jamb and can be installed by placing it over this pocket and securing with screws provided with your product. An adjustable faceplate is beneficial if any misalignment occurs as they provide flexibility in setting up between jamb and frame so both parts fit snugly against each other when closed which also stops tampering if using heavy duty locksets such as those used on commercial premises like offices or shops. Mortise strike plates are generally more secure since their fixings are embedded within timber framework making them less vulnerable but may not be suitable for some applications so always refer to your product instructions before proceeding with either type of installation before finally test operating all components by locking them from inside and outside, ensuring that everything works flawlessly before completing installation process!

Install the deadbolt

Installing a deadbolt correctly is key to properly securing doors. Begin with the inside trim, which will cover the lockset components. Secure the inside plate with two screws and attach the outside plate in the same way. Next, insert the bolt into its hole in the inside plate and insert through into its hole in the outside plate, ensuring that it meets up nicely and is flush on both sides when fully pushed into position. Then slide your lockset cylinder through so that it fits neatly into place over your bolt’s latch, making sure to line up with any other matching screws. Finally, secure all screws by tightening with a screwdriver to complete installation of your deadbolt lock set.

Install the handle set

Installing the handle set is an important part of any door lock installation. This step will complete attaching the handle set to the door and it should be done with careful attention to detail and accuracy.

Most handle sets will require four screws-two for each side of the handle set. Starting from one side, hold the handle in place and lightly mark where you need to drill holes for each screw. Pre-drill holes with a power drill before threading in your screws.

Once all four screws are attached, make sure to check that the two sides fit tightly together. When you are satisfied with how everything fits, you can go ahead and tighten up all screws completely. Test how smoothly it works by operating both sides a few times, which should complete your installation of a new door lock set!

Finishing Touches

Now that you have the door lock set installed, there are a few finishing touches you can do to make sure it looks nice and functions properly. Things like double-checking the alignment of the handle and deadbolt, as well as polishing the hardware and adjusting the strike plates, will ensure that everything looks great and works smoothly. Let’s discuss these finishing touches in more detail.

Check the door for proper operation

After installing your new door lockset, you’ll want to make sure that everything is working properly. To do this, you will need to open and close the door several times and pay attention to the way it moves. Check for any sticking, jerking, or other unusual movements when in operation. If you find any issues with the movement of your door, you’ll need to address them before proceeding with installation of the lockset.

Check that all components are snugly in place and securely attached to the doorframe. Look for any signs of damage or wear on any parts that could potentially cause an issue when installing the lockset. Make sure everything is free from debris, dust and dirt as these can all interfere with a successful installation process.

Inspect both sides of the flanges that will come into contact with the door itself – they should be flat and even so that they can lock together smoothly when in use. Then it’s time to install your new lockset!

Adjust the latch and strike plate

Once the lock is installed, it is important to adjust the latch and strike plate for optimum performance. The latch is the small metal piece in the main body of the lock, which extends and retracts when you use your key or turn button. On most locksets, you will be able to adjust this easily with a screwdriver. Make sure that the latch fully extends beyond the doorjamb without being too tight; if it’s too tight, it may jam when trying to open or close the door.

The strike plate attaches on the opposite side where a large hole for the latch has been drilled into the door frame. There should be screws included in your lock set which will secure this plate. Again, use a screwdriver to make sure that the strike plate aligns correctly with your latch and that it fits snugly against your frame when closed. This will help ensure that your door latches correctly when closing, reducing wear and tear on both components over time.


Maintaining a door lock set is essential for ensuring a secure and long lasting connection. Regular maintenance is not difficult and can be done quickly and easily. Some maintenance tips include making sure the hinges and screws are tightened, testing the door locks for accuracy, and lubricating the internal components of the lock set. Let’s look at the importance of maintenance for your door lock set.

Lubricate the lock set

Once all the components of the lock set have been assembled, it is important to make sure that the hardware moves smoothly. To ensure optimal performance, lubricating the internal moving parts of your Flat head lock set using a dry lubricant is necessary. It is important to use a dry lubricant as oil-based lubricants can attract dirt and dust particles which can cause premature wear and tear to the Flat head lock set. After applying the dry lubricant, use a clean cloth or brush to remove any excess so that it doesn’t build up on any of the components. This chore may not seem essential, but a well-lubricated Flat head door lock will function much more smoothly and last longer than one that hasn’t been properly serviced or maintained.

Tighten the screws

Once you have your door lock installed in the door and correctly connected to the exterior hardware, it is important to make sure all screws are securely tightened. If your door lock has metal screws, it is important to make sure they do not get overly tight in order to avoid damaging the metal.

Begin by tightening each of the mounting screws on a standard knobs or lever set until the hardware is secure but not overly tight. A medium Phillips head screwdriver should be used for this purpose and if you need additional leverage, use a pair of pliers while taking care not to strip any of the threads on the fasteners.

Next, locate and tighten any additional screws or bolts that may be present on your model of hardware. These fasteners may attach various mechanisms within the inner workings of some locksets such as latch bolt plates or face plate components or even pin bar mechanisms within higher quality deadbolt systems. The manufacturer’s instructions should indicate these locations for all models so take care when tightening them, using an appropriate screwdriver with either medium or large Phillips head bit depending on what is needed for each component. Do not over tighten-just enough force should be used so that all parts are secured without causing damage to fragile components such as electronic operators commonly found on electronic locksets.

Replace the batteries in the lock set (if applicable)

If you have an electronic door lock, it is likely powered by batteries. Depending on the model, these locks can require different types of batteries including AAA, C cell, or button batteries. To replace your batteries:

1. Locate the battery compartment on the back of the lock.
2. Open it with a screwdriver or by pressing the release tab (if available).
3. Carefully remove the old batteries and dispose of them in an environmentally friendly way.
4. Add fresh replacement batteries to ensure optimal power supply for your lock set. Make sure that you insert them correctly according to the diagram inside of the compartment–positive side up for all “+” pins and negative side up for all “-” pins!
5. Close the cover and secure it with a screwdriver or using a locking tab if present on your specific model of lock set.

How to Install a Door Lock SetCheckout this video:

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