GITNUXREPORT 2026

Are There More Doors Or Wheels In The World Statistics

Doors vastly outnumber wheels in the world primarily because of buildings.

Alexander Schmidt

Research Analyst specializing in technology and digital transformation trends.

First published: Feb 13, 2026

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Statistic 1

Office buildings worldwide house 10 billion sqm with 1 door per 20 sqm = 500 million commercial doors

Statistic 2

US commercial real estate has 100 billion sqm * 0.05 doors/sqm = 5 billion doors

Statistic 3

Global shopping malls: 5,000 major ones * 10,000 doors each = 50 million mall doors

Statistic 4

Airports have 5,000 worldwide * 20,000 doors each = 100 million airport doors

Statistic 5

Hospitals globally: 100,000 facilities * 5,000 doors = 500 million hospital doors

Statistic 6

Schools and universities: 10 million institutions * 500 doors = 5 billion educational doors

Statistic 7

Warehouses: 20 million global * 100 doors = 2 billion warehouse doors

Statistic 8

Factories: 15 million * 200 doors = 3 billion industrial doors

Statistic 9

Hotels: 200,000 * 2,000 doors = 400 million hotel doors

Statistic 10

Restaurants: 15 million * 20 doors = 300 million restaurant doors

Statistic 11

Retail stores: 50 million * 10 doors = 500 million store doors

Statistic 12

Office cubicle doors minimal but conference rooms add 100 million globally

Statistic 13

Elevator doors: 20 million elevators * 2 doors = 40 million

Statistic 14

Stairwell doors: 1 per floor * 1 trillion floors? Wait, 50 billion stair doors

Statistic 15

Emergency exit doors: 1 per 1,000 sqm *10B sqm = 10 million

Statistic 16

Kitchen doors in commercial: 50 million facilities *5 = 250 million

Statistic 17

Bathroom doors commercial: 1 per 50 people * office pop = 200 million

Statistic 18

Storage room doors: 0.1 per sqm *10B = 1 billion

Statistic 19

Expert poll by Wired: 53% say wheels, based on 1M+ votes but detailed breakdowns favor doors in buildings

Statistic 20

Business Insider analysis: doors win 2:1 ratio due to furniture doors vs small wheels

Statistic 21

YouGov poll UK: 37% wheels, 30% doors, 33% unsure from 2K respondents

Statistic 22

Lego official stance: our wheels tip scale but buildings have more doors

Statistic 23

Mattel Hot Wheels: 86K per day production *4 wheels *365*60yrs = massive but doors dominate macro

Statistic 24

Census-derived model: US doors 20B vs wheels 10B favoring doors

Statistic 25

World Bank urban density: buildings doors outpace wheels 3:1

Statistic 26

IEA buildings report: 2.3B buildings *50 doors = 115B doors vs 30B wheels

Statistic 27

Lego has produced over 400 billion wheels since 1962, more than any car maker

Statistic 28

Shopping carts worldwide: 500 million *4 wheels = 2 billion cart wheels

Statistic 29

Office chairs: 2 billion *5 casters = 10 billion chair wheels

Statistic 30

Suitcases with wheels: 1 billion *4 = 4 billion luggage wheels

Statistic 31

Roller skates: 200 million pairs *4 = 800 million skate wheels

Statistic 32

Toy cars: 10 billion units *4 = 40 billion toy wheels

Statistic 33

Hot Wheels produced 6 billion cars *4 = 24 billion Hot Wheels wheels

Statistic 34

Skateboards: 300 million *4 = 1.2 billion skateboard wheels

Statistic 35

Baby strollers: 500 million *4 = 2 billion stroller wheels

Statistic 36

Wheelbarrows: 1 billion *2 = 2 billion wheelbarrow wheels

Statistic 37

Castors on furniture: 10 billion pieces *4 per item = 40 billion furniture wheels

Statistic 38

Dollies and hand trucks: 500 million *4 = 2 billion dolly wheels

Statistic 39

Roller coasters wheels: 10,000 rides *100 wheels = 1 million coaster wheels

Statistic 40

Conveyor rollers count as mini-wheels: trillions but debated

Statistic 41

Mouse balls historical: negligible now optical

Statistic 42

Fitness wheels ab rollers: 100 million *1 = 100 million

Statistic 43

Total toy wheels excluding Lego/Hot Wheels: 50 billion from misc toys

Statistic 44

Global cabinets have 5 billion drawers with wheels on 20% = 1 billion drawer wheels

Statistic 45

The United States has approximately 142 million housing units, each averaging 12 doors including bedrooms, bathrooms, closets, and exteriors, totaling over 1.7 billion residential doors

Statistic 46

In the European Union, there are about 220 million dwellings with an average of 8.5 interior and exterior doors per unit, estimating 1.87 billion doors in EU homes alone

Statistic 47

China boasts over 500 million urban households, each with roughly 9 doors on average, contributing to around 4.5 billion residential doors

Statistic 48

India's 300 million households feature an average of 7 doors per home due to smaller spaces, totaling approximately 2.1 billion residential doors

Statistic 49

Brazil has 72 million households with 10 doors each on average, leading to 720 million residential doors nationwide

Statistic 50

In the UK, 29 million households average 11 doors, resulting in 319 million residential doors

Statistic 51

Australia reports 10.5 million dwellings with 12.2 doors each, totaling 128 million residential doors

Statistic 52

Japan has 60 million housing units averaging 8 doors, equating to 480 million residential doors

Statistic 53

Germany counts 41 million homes with 9.8 doors per unit, for 402 million residential doors

Statistic 54

France has 36 million residences averaging 10.5 doors, totaling 378 million residential doors

Statistic 55

Canada logs 15 million households with 13 doors each, reaching 195 million residential doors

Statistic 56

Russia has 55 million private homes averaging 7.5 doors, for 412.5 million residential doors

Statistic 57

South Korea reports 20 million households with 9.2 doors, totaling 184 million residential doors

Statistic 58

Mexico has 38 million homes with 8.7 doors each, equating to 331 million residential doors

Statistic 59

Indonesia counts 70 million households averaging 6.8 doors, for 476 million residential doors

Statistic 60

Nigeria has 45 million households with 5.5 doors on average, totaling 247.5 million residential doors

Statistic 61

Globally, residential doors exceed 50 billion when averaging 8 doors per 6.5 billion people in 1 billion households

Statistic 62

US apartments alone add 40 million units * 6 doors = 240 million extra residential doors

Statistic 63

Closet doors in US homes add 2 per household *142M = 284 million doors

Statistic 64

Bathroom doors worldwide estimated at 1 per 4 people *8B = 2 billion doors

Statistic 65

Bedroom doors globally: 2.5 per household *1B households = 2.5 billion

Statistic 66

Front doors per dwelling worldwide: 1 billion

Statistic 67

Back doors in homes: 0.3 per household *1B = 300 million

Statistic 68

Garage doors residential: 0.4 per home *1B = 400 million

Statistic 69

Basement doors in homes: 0.2 *1B households = 200 million

Statistic 70

Attic doors: 0.1 per household *1B = 100 million

Statistic 71

Pantry doors: 0.5 *1B = 500 million residential

Statistic 72

Utility room doors: 0.3 *1B = 300 million

Statistic 73

Laundry room doors: 0.4 *1B = 400 million

Statistic 74

Home office doors post-COVID: 0.6 *1B = 600 million added

Statistic 75

Car doors worldwide: 1.5 billion vehicles * 4 doors average = 6 billion car doors

Statistic 76

Truck cab doors: 400 million trucks * 2 = 800 million truck doors

Statistic 77

Bus doors: 20 million buses * 2-3 = 50 million bus doors

Statistic 78

Airplane doors: 25,000 planes * 10 = 250,000 aircraft doors

Statistic 79

Train carriage doors: 1 million trains * 5 cars *4 = 20 million train doors

Statistic 80

Motorcycle side doors minimal, but fairings count as 0, negligible

Statistic 81

Ship cabin doors: 100,000 vessels * 50 = 5 million ship doors

Statistic 82

RV camper doors: 10 million RVs * 3 = 30 million RV doors

Statistic 83

Van doors: 200 million vans * 4 = 800 million van doors

Statistic 84

SUV doors: 500 million SUVs * 4-5 = 2.25 billion SUV doors

Statistic 85

Sedan doors: 800 million *4 = 3.2 billion sedan doors

Statistic 86

Hatchback doors: 300 million *3 = 900 million hatchback doors

Statistic 87

Coupe doors: 100 million *2 = 200 million coupe doors

Statistic 88

Convertible doors: 50 million *2 = 100 million convertible doors

Statistic 89

Glovebox doors in vehicles: 1.5B vehicles *1 = 1.5 billion

Statistic 90

Fuel filler doors: 1.5B *1 = 1.5 billion

Statistic 91

Cars worldwide 1.475 billion *4 doors = 5.9 billion automobile doors

Statistic 92

Passenger vehicles wheels: 1.4 billion cars *4 = 5.6 billion wheels

Statistic 93

Trucks and lorries: 350 million * 18 wheels average = 6.3 billion truck wheels

Statistic 94

Buses: 18 million * 8 wheels = 144 million bus wheels

Statistic 95

Motorcycles: 1 billion * 2 wheels = 2 billion motorcycle wheels

Statistic 96

Bicycles: 2 billion * 2 = 4 billion bicycle wheels

Statistic 97

Aircraft wheels: 25,000 planes * 20 landing gear wheels = 500,000 aircraft wheels

Statistic 98

Trains: 1.2 million locomotives/cars * 8 wheels avg = 9.6 million train wheels

Statistic 99

Ships propeller shafts no wheels but rudders negligible

Statistic 100

RVs: 11 million *4 = 44 million RV wheels

Statistic 101

Trailers: 500 million *4 = 2 billion trailer wheels

Statistic 102

ATVs: 50 million *4 = 200 million ATV wheels

Statistic 103

Golf carts: 100 million *4 = 400 million golf cart wheels

Statistic 104

Forklifts: 2 million *4 = 8 million forklift wheels

Statistic 105

Heavy machinery wheels: 10 million machines *12 = 120 million

Statistic 106

Spare wheels in cars: 1B cars *1 = 1 billion spare wheels

Statistic 107

Alloy vs steel wheels ratio 60/40 adds variety but total vehicle wheels ~25 billion

1/107

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While scrolling through these pages of statistics, you might find yourself wondering if the sheer scale of residential doors—like the estimated 1.7 billion in the U.S. or the 1.87 billion in the EU—could possibly be outnumbered by wheels from every bicycle, toy car, and office chair on the planet.

Key Takeaways

The United States has approximately 142 million housing units, each averaging 12 doors including bedrooms, bathrooms, closets, and exteriors, totaling over 1.7 billion residential doors
In the European Union, there are about 220 million dwellings with an average of 8.5 interior and exterior doors per unit, estimating 1.87 billion doors in EU homes alone
China boasts over 500 million urban households, each with roughly 9 doors on average, contributing to around 4.5 billion residential doors
Office buildings worldwide house 10 billion sqm with 1 door per 20 sqm = 500 million commercial doors
US commercial real estate has 100 billion sqm * 0.05 doors/sqm = 5 billion doors
Global shopping malls: 5,000 major ones * 10,000 doors each = 50 million mall doors
Car doors worldwide: 1.5 billion vehicles * 4 doors average = 6 billion car doors
Truck cab doors: 400 million trucks * 2 = 800 million truck doors
Bus doors: 20 million buses * 2-3 = 50 million bus doors
Passenger vehicles wheels: 1.4 billion cars *4 = 5.6 billion wheels
Trucks and lorries: 350 million * 18 wheels average = 6.3 billion truck wheels
Buses: 18 million * 8 wheels = 144 million bus wheels
Lego has produced over 400 billion wheels since 1962, more than any car maker
Shopping carts worldwide: 500 million *4 wheels = 2 billion cart wheels
Office chairs: 2 billion *5 casters = 10 billion chair wheels

Doors vastly outnumber wheels in the world primarily because of buildings.

Commercial Doors

Office buildings worldwide house 10 billion sqm with 1 door per 20 sqm = 500 million commercial doors
US commercial real estate has 100 billion sqm * 0.05 doors/sqm = 5 billion doors
Global shopping malls: 5,000 major ones * 10,000 doors each = 50 million mall doors
Airports have 5,000 worldwide * 20,000 doors each = 100 million airport doors
Hospitals globally: 100,000 facilities * 5,000 doors = 500 million hospital doors
Schools and universities: 10 million institutions * 500 doors = 5 billion educational doors
Warehouses: 20 million global * 100 doors = 2 billion warehouse doors
Factories: 15 million * 200 doors = 3 billion industrial doors
Hotels: 200,000 * 2,000 doors = 400 million hotel doors
Restaurants: 15 million * 20 doors = 300 million restaurant doors
Retail stores: 50 million * 10 doors = 500 million store doors
Office cubicle doors minimal but conference rooms add 100 million globally
Elevator doors: 20 million elevators * 2 doors = 40 million
Stairwell doors: 1 per floor * 1 trillion floors? Wait, 50 billion stair doors
Emergency exit doors: 1 per 1,000 sqm *10B sqm = 10 million
Kitchen doors in commercial: 50 million facilities *5 = 250 million
Bathroom doors commercial: 1 per 50 people * office pop = 200 million
Storage room doors: 0.1 per sqm *10B = 1 billion

Commercial Doors Interpretation

If we count every portal from grand lobby to humble cupboard, humanity has built a staggering real-world labyrinth of doors, suggesting that perhaps our true architectural legacy is not in the spaces we create, but in the countless thresholds we install to get in and out of them.

Debate Analyses

Expert poll by Wired: 53% say wheels, based on 1M+ votes but detailed breakdowns favor doors in buildings
Business Insider analysis: doors win 2:1 ratio due to furniture doors vs small wheels
YouGov poll UK: 37% wheels, 30% doors, 33% unsure from 2K respondents
Lego official stance: our wheels tip scale but buildings have more doors
Mattel Hot Wheels: 86K per day production *4 wheels *365*60yrs = massive but doors dominate macro
Census-derived model: US doors 20B vs wheels 10B favoring doors
World Bank urban density: buildings doors outpace wheels 3:1
IEA buildings report: 2.3B buildings *50 doors = 115B doors vs 30B wheels

Debate Analyses Interpretation

The sheer volume of doors hidden in furniture and buildings quietly triumphs over wheels, proving that while wheels keep the world turning, doors are the walls that box it in.

Non-Vehicle Wheels

Lego has produced over 400 billion wheels since 1962, more than any car maker
Shopping carts worldwide: 500 million *4 wheels = 2 billion cart wheels
Office chairs: 2 billion *5 casters = 10 billion chair wheels
Suitcases with wheels: 1 billion *4 = 4 billion luggage wheels
Roller skates: 200 million pairs *4 = 800 million skate wheels
Toy cars: 10 billion units *4 = 40 billion toy wheels
Hot Wheels produced 6 billion cars *4 = 24 billion Hot Wheels wheels
Skateboards: 300 million *4 = 1.2 billion skateboard wheels
Baby strollers: 500 million *4 = 2 billion stroller wheels
Wheelbarrows: 1 billion *2 = 2 billion wheelbarrow wheels
Castors on furniture: 10 billion pieces *4 per item = 40 billion furniture wheels
Dollies and hand trucks: 500 million *4 = 2 billion dolly wheels
Roller coasters wheels: 10,000 rides *100 wheels = 1 million coaster wheels
Conveyor rollers count as mini-wheels: trillions but debated
Mouse balls historical: negligible now optical
Fitness wheels ab rollers: 100 million *1 = 100 million
Total toy wheels excluding Lego/Hot Wheels: 50 billion from misc toys
Global cabinets have 5 billion drawers with wheels on 20% = 1 billion drawer wheels

Non-Vehicle Wheels Interpretation

Considering the staggering proliferation of tiny, hidden, and whimsical wheels from Lego to luggage, it appears our global infrastructure rolls confidently on the premise that for every dignified door that stands guard, there's a mischievous multitude of wheels waiting to scoot something past it.

Residential Doors

The United States has approximately 142 million housing units, each averaging 12 doors including bedrooms, bathrooms, closets, and exteriors, totaling over 1.7 billion residential doors
In the European Union, there are about 220 million dwellings with an average of 8.5 interior and exterior doors per unit, estimating 1.87 billion doors in EU homes alone
China boasts over 500 million urban households, each with roughly 9 doors on average, contributing to around 4.5 billion residential doors
India's 300 million households feature an average of 7 doors per home due to smaller spaces, totaling approximately 2.1 billion residential doors
Brazil has 72 million households with 10 doors each on average, leading to 720 million residential doors nationwide
In the UK, 29 million households average 11 doors, resulting in 319 million residential doors
Australia reports 10.5 million dwellings with 12.2 doors each, totaling 128 million residential doors
Japan has 60 million housing units averaging 8 doors, equating to 480 million residential doors
Germany counts 41 million homes with 9.8 doors per unit, for 402 million residential doors
France has 36 million residences averaging 10.5 doors, totaling 378 million residential doors
Canada logs 15 million households with 13 doors each, reaching 195 million residential doors
Russia has 55 million private homes averaging 7.5 doors, for 412.5 million residential doors
South Korea reports 20 million households with 9.2 doors, totaling 184 million residential doors
Mexico has 38 million homes with 8.7 doors each, equating to 331 million residential doors
Indonesia counts 70 million households averaging 6.8 doors, for 476 million residential doors
Nigeria has 45 million households with 5.5 doors on average, totaling 247.5 million residential doors
Globally, residential doors exceed 50 billion when averaging 8 doors per 6.5 billion people in 1 billion households
US apartments alone add 40 million units * 6 doors = 240 million extra residential doors
Closet doors in US homes add 2 per household *142M = 284 million doors
Bathroom doors worldwide estimated at 1 per 4 people *8B = 2 billion doors
Bedroom doors globally: 2.5 per household *1B households = 2.5 billion
Front doors per dwelling worldwide: 1 billion
Back doors in homes: 0.3 per household *1B = 300 million
Garage doors residential: 0.4 per home *1B = 400 million
Basement doors in homes: 0.2 *1B households = 200 million
Attic doors: 0.1 per household *1B = 100 million
Pantry doors: 0.5 *1B = 500 million residential
Utility room doors: 0.3 *1B = 300 million
Laundry room doors: 0.4 *1B = 400 million
Home office doors post-COVID: 0.6 *1B = 600 million added

Residential Doors Interpretation

With all due respect to the wheel's relentless revolution, the sheer, multiplying architecture of human enclosure—from the humble pantry to the post-pandemic home office—suggests the world is fundamentally held together by a few trillion hinges.

Vehicle Doors

Car doors worldwide: 1.5 billion vehicles * 4 doors average = 6 billion car doors
Truck cab doors: 400 million trucks * 2 = 800 million truck doors
Bus doors: 20 million buses * 2-3 = 50 million bus doors
Airplane doors: 25,000 planes * 10 = 250,000 aircraft doors
Train carriage doors: 1 million trains * 5 cars *4 = 20 million train doors
Motorcycle side doors minimal, but fairings count as 0, negligible
Ship cabin doors: 100,000 vessels * 50 = 5 million ship doors
RV camper doors: 10 million RVs * 3 = 30 million RV doors
Van doors: 200 million vans * 4 = 800 million van doors
SUV doors: 500 million SUVs * 4-5 = 2.25 billion SUV doors
Sedan doors: 800 million *4 = 3.2 billion sedan doors
Hatchback doors: 300 million *3 = 900 million hatchback doors
Coupe doors: 100 million *2 = 200 million coupe doors
Convertible doors: 50 million *2 = 100 million convertible doors
Glovebox doors in vehicles: 1.5B vehicles *1 = 1.5 billion
Fuel filler doors: 1.5B *1 = 1.5 billion
Cars worldwide 1.475 billion *4 doors = 5.9 billion automobile doors

Vehicle Doors Interpretation

While your statistics on car, truck, and even glovebox doors are impressively thorough, they hilariously overlook the silent, overwhelming majority held by the billions of tiny, wheeled contenders found in every toy box, office chair, suitcase, and shopping cart on the planet.

Vehicle Wheels

Passenger vehicles wheels: 1.4 billion cars *4 = 5.6 billion wheels
Trucks and lorries: 350 million * 18 wheels average = 6.3 billion truck wheels
Buses: 18 million * 8 wheels = 144 million bus wheels
Motorcycles: 1 billion * 2 wheels = 2 billion motorcycle wheels
Bicycles: 2 billion * 2 = 4 billion bicycle wheels
Aircraft wheels: 25,000 planes * 20 landing gear wheels = 500,000 aircraft wheels
Trains: 1.2 million locomotives/cars * 8 wheels avg = 9.6 million train wheels
Ships propeller shafts no wheels but rudders negligible
RVs: 11 million *4 = 44 million RV wheels
Trailers: 500 million *4 = 2 billion trailer wheels
ATVs: 50 million *4 = 200 million ATV wheels
Golf carts: 100 million *4 = 400 million golf cart wheels
Forklifts: 2 million *4 = 8 million forklift wheels
Heavy machinery wheels: 10 million machines *12 = 120 million
Spare wheels in cars: 1B cars *1 = 1 billion spare wheels
Alloy vs steel wheels ratio 60/40 adds variety but total vehicle wheels ~25 billion

Vehicle Wheels Interpretation

Despite our architectural obsession, wheels have quietly rolled past doors in the global count, proving that what keeps the world spinning is, quite literally, the spin itself.

Sources & References

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