Fire Door Classes: How Long Can They Endure a Fire?

Fire Door Classes: How Long Can They Endure a Fire?

What Are We Covering?

In this article, we're delving into the world of fire doors and their ratings. From understanding different classifications like FD30 and FD120 to exploring their significance in various settings, we'll guide you through the essentials.

Discover why fire doors matter, how they're used in different properties, and the crucial role of maintenance. Plus, learn why fire risk assessments are pivotal for optimal fire door functionality. Join us as we navigate the realm of fire safety and protection.


While we strive to provide accurate and up-to-date information, it's important to remember that the content provided here is for informational purposes only. Fire safety is a critical matter, and decisions should be made based on expert advice and local regulations.

If you encounter a fire-related situation, always prioritize your safety and the safety of others. If you're unsure about any aspect of fire safety, seek guidance from qualified professionals or relevant authorities.



What are the different fire door ratings?

Explaining the different classes of fire doors.

Why are fire doors important?

Explaining why they are so essential

Uses of Fire Doors in Different Properties

Explaining what a class B fire is and how to identify one.

Fire doors in commercial properties

Commercial fire door uses

Fire doors in industrial properties

Industrial fire door uses

Monitoring, maintenance and replacement of fire doors

How and when to maintain fire doors and when to replace

Fire Risk Assessments:

How fire risk assessments help maintaining fire doors

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What are the different fire door ratings?

Fire doors have classes which rate their ability (time) to withstand a fire. These are meticulously tested to make sure that their rating is upheld. They are rated as follows:

FD30 – 30-minute protection

FD60 – 60-minute protection

FD90 – 90-minute protection

FD120 – 120-minute protection

The classes are easy to understand, with each class representing a number stemming from the amount of time they can withstand a fire I.E. FD30 - 30 Minutes.

Fire doors are essential for allowing people inside the building to escape, the longer the door holds, the more time people have for escape and even rescue.

These ratings are extremely important when picking out a fire door. A suitable fire door should be picked out based on any potential fire hazards and the time required for occupants to exit safely.


Why are fire doors important?

Sometimes the most unassuming objects can hold the greatest importance. And the importance of fire doors cannot be understated. They play a vital role in the fire safety strategies of properties around the world. 

In case of a fire, the main objective of any fire protection tools is to protect the property and the people inside. Fire doors do this very well. Keeping fires in one area, stopping the spread allowing people to evacuate and even giving enough time for emergency services to get there in time.

Uses of Fire Doors in Different Properties

Fire doors in commercial properties:

Commercial properties such as offices, schools, hotels and more, are in constant need of fire doors. In most cases for this type of property, FD30/60 fire doors are the usual class used. Being strategically placed to create fire-resistant compartments throughout the building. This helps to prevent the fire from spreading so that occupants have sufficient time to evacuate.

Fire doors in industrial properties:

Industrial environments are the usual place where FD 90+ classification of fire doors should be used. The main case for this is due to these types of properties dealing with higher fire risks. This can be because of a multitude of factors such as hazardous materials and processes they encounter on a regular basis. Because FD90 and FD120 are much stronger it is commonly used in such settings to provide extended protection, allowing more time for emergency services to arrive.

Monitoring, maintenance and replacement of fire doors:

With fire doors being an important part of any property's fire protection strategy, it should also be stated that it is one of the most used in the day-to-day. Functioning, of course, as a door, over time, general wear and tear may occur. 

The condition of the fire doors may degrade due to insufficient maintenance. Regular inspections and maintenance are necessary to ensure fire doors remain completely functioning and adhere to safety requirements, ensuring their continuous efficacy and protection.

If fire doors are beyond repair, don't close securely, or don't pass safety inspections, they must be replaced right away. It's also important to keep in mind that updates to fire safety rules or renovations to buildings may necessitate the installation of new fire doors or the upgrading of already-existing ones.

Fire Risk Assessments:

Fire risk assessments are essential for effective fire door use. They identify hazards, ensure proper placement, and help maintain functionality. At Westcountry Fire Protection, our fire risk assessment service ensures your fire doors meet safety standards, identifying risks and offering tailored solutions. Keep your building safe with us.

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