Jun 06 , 2021

What Do You Need to Know About the Standard Door Sizes?


What Are the Standard Door Sizes?

Constructing or remodeling a house is not an easy task. You have to consider a multitude of factors before construction. Throughout the process, you need to make a lot of measurements, one of which is the size of the door.

Whether you are replacing an old door or installing a new one, correct measurement can ensure that the door and rough opening match properly. And that is where a lot of people make the biggest mistakes. Especially those who know nothing about the doors or are not the experts.

Evaluating the size of the door is more than just taking a tape measure, evaluating the sideline of the door. No, you have to calculate different dimensions to get the exact measurement then you are going to get the right fit. Here are some things that you should know about the door measurements:

Types of Door Sizes

Now the first thing is you need to know the different door sizes. According to the area, the doors are going to fit in the door sizes can be divided into 2 types:

● Exterior door size

● Interior door size

What Is the Difference Between the Interior and Exterior Door Sizes?

As we are aware of the types of door sizes, you should know the major difference between these two types.

The exterior doors are the types of doors that are mostly for your entryways. These are the ones that are going to face the harsh conditions of the external environment. For which, these are the ones that are constructed with a mix of material and are built to last longer. Also, these doors do weigh a lot because heavy-duty materials are used in construction.

 Now for the interior doors, these doors are the ones that are for bedrooms, kitchens, storerooms, or any other rooms of your house. These types of doors do not need heavy-duty construction, that’s why these are lighter. The interior doors are also not soundproof unless you customize them to be one.

What Is the Standard Interior Door Size?

First of all, let’s start with the standard interior door size. Most of the interior doors are compared with the exterior doors but please do not do that. First, do your homework on different types and then go for your dream door.

Now one thing we should know is that door sizes are taken in 3 dimensions that are:

● Width

● Height 

● Thickness

For you to have the right size value, you need to know these 3 dimensions and that will be considered as the right measurements.

Talking about the standard value of interior doors, the most standard value is 32 inches in width, 80 inches in height, and 1 ¾ thick. Now, these are the most common values you will find but then you should know that these are not the right numbers for every house.

If we talk about the height, then most commonly doors are 6 over 8 inches in height. But you can also get the smaller ranges. And if we talk about the thickness, then the interior doors are also available in ranges of 1 3/8 or 1 ½ thickness.

What Is the Standard Exterior Door Size?

Now comes the exterior doors. As we mentioned above, the exterior doors are mostly your front doors. And these are the ones that are going to face climate changes etc. The exterior doors are heavy and when it comes to size you cannot say that there is an average size. Because every home is constructed differently and the measurements are also going to vary a lot.

Now the most common front door size that has been evaluated is 36 inches in width, 80 inches tall and for thickness, the most measured value is 2 inches. But here comes an exception that this is not the size that will be right for every door. The doors can be even 30 inches narrow and can even be 96 inches tall. Now aside from the door panels the other numbers that you should consider are:

● The rough opening should be ¾ wider and 3/8 taller

● The exterior cladding should be ½ inches wider and ¼ taller

 Aside from that, exterior doors are also available in different configurations and you can even get some additional options.

Things You Should See Before Buying Your Ideal Door Type

●      Material

Before choosing a material, determine the area your door is going to be present in. Whether it is indoor or outdoor. Then comes the part of the material choosing. You can find a variety of materials from wood, glass, and even stainless steel. Aside from that, find something that will match your interior and the finding of your house.

●      Durability

You do not want something that will just fall apart after a few months right. There may be different types of material in the market but again all are not durable. Find the most durable material present on the market and then go for the buying process.

●      Budget

Budget is the most important factor you need to consider before going for the buying process. It is always better to first plan out your budget. Get to know whether the design, material, and construction costs are in between the budget. For that, get in touch with some professionals and enquire all about what would be better for you or your designated budget.


Replacing or remodeling a door might sound exciting, but all your excitement goes down the drain if you do not pay attention to the above details. Evaluating a door size properly is not an arduous task if you do everything as mentioned above. And even after getting the right measurements, it is always the best option to first consult an expert in the field and get to know more details before going for the buying process. Because their advice can not only help you but also your budget.

What Do You Need to Know About the Standard Door Sizes?

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