How Many Doors Are in the World Total

How Many Doors Are in the World Total?

Doors are an essential part of our everyday life. They provide us with privacy, security, and convenience. From our homes to public places, doors are everywhere. But have you ever wondered how many doors are there in the world? While it is nearly impossible to provide an exact number, we can estimate the total based on various factors.

Estimating the total number of doors globally requires considering different types of structures, including residential buildings, commercial spaces, public institutions, and transportation systems. Additionally, we must take into account the number of doors in each building and the average number of buildings worldwide. Let’s delve into some statistics to get a rough estimate.

Residential Buildings:
Considering the ever-growing global population, the number of residential buildings is constantly increasing. If we take an average of 10 doors per house, including front and internal doors, and estimate that there are around 2 billion houses worldwide, we can conclude that there are approximately 20 billion doors in residential buildings alone.

Commercial Spaces:
Commercial buildings include offices, shopping malls, restaurants, and hotels, among others. These structures typically have a larger number of doors compared to residential buildings due to their size and function. Considering that there are around 1.7 million shopping centers worldwide, each with an average of 50 doors, we can estimate that commercial spaces contain approximately 85 million doors.

Public Institutions:
Public institutions encompass schools, hospitals, government buildings, and recreational facilities. Given that there are thousands of schools and hospitals worldwide, each equipped with numerous doors, we can assume that public institutions account for millions of doors globally.

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Transportation Systems:
Transportation systems such as airports, train stations, and bus terminals also contribute to the overall number of doors in the world. Considering the vast number of transportation hubs worldwide, including their terminals, offices, and other facilities, it is safe to assume that they contain millions of doors combined.

Based on these estimates, we can conclude that there are billions of doors in the world. However, it is important to remember that these numbers are approximate and subject to change as new buildings are constructed and old ones are demolished.


1. Are revolving doors included in the estimate?
Yes, all types of doors, including revolving doors, are considered in the estimate.

2. Are garage doors included?
Yes, garage doors are included in the estimate, as they are crucial parts of residential buildings.

3. Do pocket doors count?
Yes, pocket doors are also considered as they serve the same purpose as traditional hinged doors.

4. Do gates count as doors?
While gates can be considered as doors, they are typically not included in the estimate as they are separate structures.

5. Are interior and exterior doors counted separately?
Yes, interior and exterior doors are counted separately to provide a more accurate estimate.

6. Are emergency exit doors included?
Yes, emergency exit doors are included in the estimate as they are an important part of public safety.

7. Do doors in portable structures count?
Yes, doors in portable structures like trailers and temporary buildings are included in the estimate.

8. Are ancient doors considered?
No, the estimate only accounts for doors in existing structures.

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9. Are barn doors included?
Yes, barn doors are considered as they are part of residential or commercial buildings.

10. Are doors in developing countries included?
Yes, the estimate encompasses doors from all around the world, regardless of the country’s development level.

11. How accurate is this estimate?
While this estimate provides a rough idea of the total number of doors in the world, it is important to note that the actual number may vary. Factors like population growth, construction rates, and demolition rates can influence the accuracy of the estimate.