How To Install An Exterior Door In 11 Simple Steps

How To Install An Exterior Door

Leena is a teenage girl who recently got admission to her dream university. After reaching the university, she started searching for a place to live and fortunately, she found a place that comes under her budget and also very near to the university. So without wasting time, she shifted to this new place. 

But after some time she noticed that the front door of the house is in terrible condition. This door is very old so sometimes it got stuck and she is facing difficulty in closing or opening the door. Another thing is that the lock system is also outdated. So, she decided to change it as soon as possible. But the real problem she faces is that she is a newbie in the city and hardly knows anyone. Also, she does not have any idea about the installation of the door. Now, she wishes to know how to fix it?  A carpenter can do this task very easily, but it will cost her a lot, and she will also not be able to do this by herself. 

Are you facing the same problem as Leena does? It doesn’t matter if you’re a girl or a boy; there is no such task that you can’t do it. 

We all know that doors are a very important part of our house. Not only do they provide safety and security, but they also make our home more appealing. And of course, they enable us to enter a room without breaking through the wall. Hahaha…Right?  They also provide protection from pests and harsh weather conditions. 

In short, 

Door = A doorway to privacy and security!!

Just don’t keep on reading the importance only, if your door condition is like Leena’s door, fix it with our step by guidelines on how to install an exterior door. We have provided 11 steps in details along with pictures so that you can understand the whole process. 

How To Install An Exterior Door?

So now, roll up your sleeves and tie your hair and get ready to give your home a new makeover. 

Grab the Tools and Materials

There are many tools you’ll require to remove the door and install a new one. So collect all the needed materials and tools and get ready to do the task. 

Here is the list of tools and materials: 



  • 2-ft. and 4-ft. levels
  • 10d finish nails
  • Caulk gun
  • 10d galvanized casing nails
  • Miter saw
  • 16d galvanized casing nails
  • Pry bar
  • 3-in. deck screws
  • Reciprocating saw
  • 4d finish nails
  • 6d finish nails
  • Backer rod
  • Minimal expanding foam
  • Polyurethane caulk
  • Roll of flexible self-sticking flashing membrane
  • Transition molding Transition molding (optional)
  • Treated lumber to build up the sill (optional)

Select the New Door

How To Install An Exterior Door


The first step is to pick a new door, but before you go to the store, make sure you take measurements of your existing door with you. So that when you find your dream door, you just won’t have to leave it just because it is too big or small as per your measurements. 

“You can select the door according to the material and style like wood, glass or steel.”

Tear Out The Old Door

Check the New Door Will Fit or Not

How To Install An Exterior Door


After you buy one, still confirm it by comparing it with the old door. Check all the measurements, like door height, width, and thickness. And everything seems fine then put this new door aside, and it’s time to start the process. 

“It is always good to check the fitting of the door before installation.” 

Remove the Exterior and Interior Trim

How To Install An Exterior Door


After you’re done with these above 2 steps, it’s now time to do the real thing. First of all, simply pry off the exterior and interior trim with the help of a hammer and a nail set. 

Replace The Hinge Screws

How To Install An Exterior Door


After you removed the trim, now take out the hinge pins with a screwdriver and Scrape away the door jamb and framing then slowly pull out the door.  

“If the door is too heavy, take help from a friend or neighbor to lift the door.”

Installation of a New Door

Before you place the new door in the door frame, Clean the area thoroughly. After this, you can start the process.

Tack in the Prehung Exterior Door

How To Install An Exterior Door


Roughly place the new door in the doorframe, just to make sure that everything is fine. Use a level tool to ensure that everything is in level and balance. If not, then go to the woodworking shop and get it fixed. 

“Make sure the new door is well fitted into the door frame.” 

Apply Caulk

How To Install An Exterior Door


And when all the measurements are right, it’s good to start the work and the first step is to apply caulk to the sides of the door frame. Spread two thick layers of caulk on the edges of the subsill. 

Place the Door

How To Install An Exterior Door


Now it’s time to insert the door, carefully insert the door in the door frame and check whether it is placed equally from inside and outside. 

“Place building paper to the exposed area of the walls and frame to get rid off of moisture.”

Secure the Things

How To Install An Exterior Door


Now, after this, the next step is to secure it with nails and hinges. Install the door hinges, which comes with the door kit. Tightly screw up the hinges on the door frame with the screws included in the hardware kit. 

“Normally, 3 hinges are sufficient to take the load of the door, but if your door is heavy, you can also increase the number of hinges to get that extra support.”


Test the Door

How To Install An Exterior Door


After all this hard work, it’s time to check whether it is working properly or not. Open and close the door several times to confirm that it’s swinging smoothly and lock at the right place or not.

Install Insulation

How To Install An Exterior Door


Last but not the least step is to install the insulation. This insulation covers all the loose spots in the door frame and edges. 

“Always select the insulation according to the material of your gate.”

Door Knobs and Lock 

How To Install An Exterior Door


And the final step is to install a new knob and door lock. There are various electronic door locks available in the market; you can select any of them. 

And finally, you’re done with the installation process!!

You can refer to this video for installing the door.

Now after these 11 steps you know how to install an exterior door. But don’t read all the steps at once while installing the door because if you do so, you will not be able to understand the whole process and may end up creating a mess. Read every step and instruction slowly and try to understand it, and even if you find it difficult, then reread the whole blog again. 

How To Install An Exterior Door


So if your exterior door is worn down and not looking good, it’s time to replace it with the new one. This whole process is easy for the professionals, but when you don’t have much time and money, you can always do it yourself (DIY). Don’t get confused like Leena about how to install an exterior door. Just replace your door all by yourself as this project doesn’t require any major crafting skills (though it needs some muscle power!). For more interesting DIY projects like so, visit Interiorcraze.

Leave a Reply

Your email address will not be published. Required fields are marked *