Top Reasons Why Fire Doors Should Be Kept Closed


In a fire, every second counts. As such, every precaution needs to be in place to keep the danger at bay. That is why it is so important to understand – and follow – the correct safety procedures when working in a building that has a fire risk. Keeping fire doors closed can help prevent the spread of fire and harmful fumes both during and after the fire itself. But for some reason, there are many who tend to ignore these precautions. If you work with or around fire doors or are planning on doing so soon, here are some top reasons why you should keep them closed from Capital Fire Doors:

Understand the difference between fire doors and fire exits

Fire doors are internal doors of a building which aim to prevent the spread of fire through a building by compartmentalising it in the area which it began, saving lives in the process. As such, it’s incredibly important to keep these shut and protect people in all other areas of a building. Fire exits, on the other hand, are external doors which are to be used as exit points in the event of emergency. These doors do not need to be fireproof, as the functionality of these doors consists of allowing a safe exit from a burning building. In essence, in the event of a fire, fire doors should remain closed, and fire exits should be open.

To prevent the spread of fire and smoke

If a fire door is left open, it can allow smoke and harmful carbon monoxide fumes to spread very quickly. This can have a very negative impact on the people in the area, as well as any equipment that is in the vicinity. The same goes for heat, which can also be spread if a fire door is left open. This can cause damage to equipment, as well as pose a potential risk to people nearby. There may be other components of the building that are also susceptible to heat damage, such as wiring and computer systems. If damaged, this electrical risk could only escalate the severity of the fire.

To protect hallways, stairs and exits for escape

If a fire door is left open, it can prevent people from escaping the building in the event of a fire by allowing fire which could’ve been contained to obstruct exit routes. Firefighters and those unfortunate enough to become trapped require these areas to be free of obstruction to escape. In an emergency situation, every second counts. If a fire door is left open, there is a chance that it may encourage people to re-enter a dangerous area of the building by confusing the exit route. This may cause people to panic, which can make the situation even more dangerous. If the door is closed, people can find the correct exit in a more timely fashion, with less confusion, and without the chance of getting stuck.

To ensure adequate breathing air for firefighters

When firefighters enter a building, they need to make sure that they have the proper amount of oxygen to fight the fire. When a fire door is left open, it can allow harmful gases to fill the area that firefighters need to enter, which could make the job even more difficult. If a fire door is left open, firefighters may have to use an air pump to increase the air flow in the area. However, if the door is closed, it can help firefighters get the quantity and quality of air they need, allowing them to save lives as quickly and efficiently as possible.

So that you can see where you are going

If a fire door is left open, it can cause a lot of confusion as to where people are going, especially in an emergency situation. A closed fire door can help create a clear path for people to follow in the event of an emergency, and allow people to get out faster and more easily.

Because it is the right thing to do

It is important to keep in mind that you should never leave a fire door open if it has been closed. People may not realize that the door is meant to be shut, and may think that it is correct to open it, especially if they are in a rush. A closed fire door should always remain closed, even if there is an emergency situation. If you are with someone and they open a fire door, you may want to inform them that they need to keep it shut. This can prevent the door from being opened in the wrong situation and making the problem worse.


If you are in a building with a fire risk, it is important to keep the fire door closed. This can help prevent the spread of fire and smoke, protect hallways, stairs, and exits for escape, ensure adequate breathing air for firefighters, and allow you to see where you are going. It can also help you to follow the right procedure, which is always a good idea when it comes to safety.

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