How Many Stairs In A Flight? [Explained]

Our life has become so easy with elevators and escalators now. But ever wondered how troublesome it was to get on top of high buildings in the past. Even now world’s tall buildings have stairs as the primary way to get on the upper floors.

Sometimes it feels like it’s taking ages to get on the upper stores. The stairs seem endless. Then this thought may come to your mind how many stairs in a flight. To your surprise, that’s way less than you might be thinking. So here is a detailed article about the stairs in flight and according to the types.

Are you counting stairs when you’re trying to figure out how many flights there are in a day? If so, you’re not alone – many people mistakenly count stairs when trying to figure out how many flights they need to take to get to their destination. But how many stairs are in a flight?

And why is this mistake so common? In this article, we’ll explain how to figure out how many stairs are in a flight and answer some common questions about the number of stairs in a flight.

How Many Stairs In A Flight

Some Facts About Stairwells

Some Facts About Stairwells

A stairwell can be a very dangerous place in a flight. It is important to be aware of the following facts about stairwells in order to stay safe:

  1. A stairwell is often the last place you would expect an emergency. It is easy for something to go wrong and for someone to get injured.
  2. There are no barriers between the stairs and the aisle. This means that people walking down the stairs or people who are trying to exit the staircase may not see you and may not be able to avoid hitting you.
  3. There are no emergency lights in a stairwell. This means that even if someone is in the stairwell, they may not be able to see you or hear you if there is an emergency.
  4. Stairwells are often poorly designed and poorly lit. This means that it is easy for someone to get lost or stranded in a stairwell, and it is also easy for something to go wrong and for someone to get injured.

Types Of Stairs

Types Of Stairs

There are a few different types of stairs that are often found in a flight. These include the emergency stairs, the service stairs, and the passenger stairs.

The emergency stairs are designed for use in the event of a plane emergency. They are usually located at either the front or back of the plane and lead to the ground.

The service stairs are used by crew members to get from one area of the plane to another. They are usually located near the cockpit and consist of a series of short, steep steps.

The passenger stairs are typically found near the rear of the plane and lead to the upper levels. They are usually very wide and provide easy access for passengers to get from one level of the plane to another.

General Requirements

General Requirements

To figure out how many stairs are in a flight, you first need to determine the general requirements for stairs. These requirements include the following:

  • The stairs must be accessible from both the inside and outside of the plane.
  • The stairs must be able to hold at least 500 pounds per step.
  • The staircase should have a minimum width of 12 inches.

To find the number of stairs in a flight, you need to consider all three types. Let’s take a closer look at each one and determine exactly how many stairs are in a flight based on these details.

Emergency Stairs: The shortest stair length should be 200 feet or more – this means that there will have to be several flights of emergency-length steps (elevators) found inside your plane if it has any variation from an even 1 mile count between landing strips inside and outside your airport. Take care to specify which section they’re near when writing up the passenger route because although they’ll be the the shortest, they won’t always be available first.

Service Stairs: Service stairs typically have lengths between 400-600 feet and should usually butt up against an interior wall to make them extra accessible in case of fire, smoke or other emergencies on board.

They’re also sometimes located near emergency exits to reduce flight navigation times in event of a problem while en route (which will no doubt increase once AirBnB enters the market). Again, take care to specify which section these steps fall near so that you give your passengers as much peace of mind as possible during a long journey.

Landing Stairs: Landing stairs are the longest and should measure between 700-1,500 feet in length – this means that you can expect to find at least 4-7 flights of these steps in any given passenger route. Because they’re typically used for disembarking passengers after landing or taking off, it’s important to make sure that they fall close to the boarding gates so that passengers exiting have as little distance as possible trekking through a long airport terminal.

Definition Of A Flight In Stairs

Definition Of A Flight In Stairs

When a set of stairs rise and continues to go without any landing surface or any obstacle, then it’s called a Flight in Stairs. The interesting fact is the size and gaps must be equal regardless of the number of steps. Only this feature in a set of stairs is marked as flight in stairs. 

Length of a flight means the total length of stairs without the landing surface. Usually, a flight has 12 to 14 steps on average, but there is no maximum or minimum if that is private property.

And you can choose the design of your flight in stairs; it can be straight, spiral or whatever you wish. The only thing that matters all the steps are uniformly set in “rise” and “tread.”

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How Many Stairs In A Flight?

The number of steps in a flight of stairs depends on various things. You will have to follow the rules of the government to make your house. And especially following the fire escape guidelines for the staircase.

Also, the location of stairs and height of ceiling get into the count. Suppose you make a straight flight of stairs that are going to be fewer in steps than curved. And landing will make the flight shorter in theory.

Let’s have some examples of how many steps you can keep in a flight according to IRC.

If your home is 8 feet high ceiling, then you may have 12 – 14 steps. If you have a 9 feet ceiling, you should have 15 – 16 steps, and for 10 feet ceiling, 17 – 19 steps. 

8’ Ceiling Flight Of Stairs

8’ Ceiling Flight Of Stairs

If you have an 8 feet height ceiling, you will have a 10″ joist. That makes it 8′ 10″ in the total height of the flight. 

IRC allows a maximum of 7 ¾”  rise in each step. So that is 7.75 inches now the total height is 106 inches from bottom to ceiling. 106/7.75 is 13.7 that is near 14. So if you got an 8’ high ceiling flight of stairs must have 14 steps.

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9’ Ceiling Flight of Stairs

9’ Ceiling Flight of Stairs

On a 9′ ceiling home, you will have a 118″ rise for flight. This is including the joist and subfloor.

Taking the standard rise, you can have 118/7 ¾ or 7.75 that is somewhere 15.2. Now, if you think that you will make 15 or fewer steps for a 9′ ceiling, then you are miscalculating. Because if you take 15 steps, you will be short of 4 inches between the last and upper floors.

So you have to make 16 steps to be on the safer side. And to measure the rise of each step, take into account the 118″ and divide by 16. Then you will have 7.4 inches of rising in steps. 

10’ Ceiling Flight of Stairs

10’ Ceiling Flight of Stairs

The measurement is also the same in the 10 ceiling homes. The joist remaining 10″ and ¾” of subfloors the total rise is 130″. 130 divide by 7.75 is 16.8, and that’s around 17. So you get the idea that you will need a minimum of 17 steps for a 10′ ceiling house.

But you will have to do some simple math. 130/17 is 7.7″, so that’s the rise you are looking for in your flight of stairs.

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Minimum Numbers of Stairs in a Flight

Minimum Numbers of Stairs in a Flight

A flight in stairs means the continuous rise of steps without any wide landing surface. And the building code doesn’t say what is the minimum. However, you can easily figure it out with the measurement of steps. And the height of the ceiling.

Here is a table of the maximum and minimum rise and tread of steps:

Min rise (inches) Max rise (inches) Min tread (inches) Max tread (inches)
Private stair 4 7.75 9 11.8
Utility stair 4 7.4 9.8 15
General access stair 4 6.7 9.8 15


Taking the safest maximum size, 7.75, we can determine the minimum number of stairs in a safe flight. IRC says 12 feet is the maximum safe vertical rise between two floors. So when you are making a home, you cannot go over that limit. 

Let’s try to figure out the minimum number of stairs using these metrics. 12 feet is 144″ inches. And the maximum rise is 7.75. Dividing 144 by 7.75, we get 18.5, so we can safely say it’s 19.

That means you can set a minimum of 19 steps in a flight in a home, or it can be dangerous without any landing. If you have less than a 12′ high ceiling dividing that by 7.75 will give you the approximate number.

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Maximum Number of Stairs in a Flight

Maximum Number of Stairs in a Flight

To measure the maximum number, we will use the previous metrics here too. An authoritative minimum riser is 4″ inches. Anything less than that is hazardous.

The maximum vertical rise allowed is 12′, which is 144″ in inches. Taking that 144 and divide by 4, we get 36. So, no matter which type of stairs you make, the maximum safe number of steps is 36. 


We hope that you got the idea of how many stairs in a flight. Sometimes we have to make stairs for our private property and general purpose in Banks or other official buildings.

So keep track of that when you make a new home to be on the safe side. Also, keeping everything symmetric makes a home eye-pleasing. Get a hint in this article for a brain teaser treat for yourself.


What is a Flight of Stairs?

A flight of stairs is a series of steps that leads down from one level to another. They are typically found in airports, and they are often used as the exit point for passengers after landing or taking off. They can also be used by passengers who need to exit the airport, but they are occasionally found in other locations as well.

How Many Steps In A Flight Of Stairs?

There are typically 18 steps in a flight of stairs, but this number can vary depending on the location. Some have as few or as many steps between each level.

What Is the Minimum Number of Steps in One Flight?

There is no minimum number of steps in a flight of stairs, but it is generally recommended that there are at least 18 steps.

How Long is a Flight of Stairs?

This is a difficult question to answer, as it depends on a number of factors, including the height of the stairs, the width of the staircase, and the type of flooring. In general, however, it would take about three steps per second to ascend a flight of stairs.

How Many Stairs Are in a Flight?

There can be anywhere from one to four stairs in a flight, but the average number is three.

Michael C. Herrera

I’m a travel blogger with a focus on safety. I’ve been to all seven continents, and I love sharing my tips for staying safe while traveling. I also have a lot of experience with travel hacking and finding the best deals on airfare and hotels. My blog features reviews of restaurants, hotels, and attractions around the world.

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