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A guide to Fire doors and installing them 1

A guide to Fire doors and installing them

Many people find themselves in unfamiliar territory when installing fire doors. Some wonder if they are necessary, while others are not even sure what they can do. There is no better time than the present to be proactive about your safety in this day and age. This article will take you through everything you need to know when it comes to installing fire doors.

Why are fire doors installed?

The main reason for installing fire doors is to protect the building and save lives if a fire breaks out. Fire doors are designed to reduce the speed of the spread of fire by containing it within one location for a more extended period. Much thought and care should go into purchasing and installing a fire door within a property. Here at Internal Doors UK, we offer an extensive range of FD30 and FD60 Fire doors and standard Internal Doors that do not compromise on style for function.

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How to know if you require a fire door

UK Building codes specify that fire doors must be installed in certain areas in domestic homes such as:

  • A new build with three or more storeys must have fire doors in place for every room leading off of a stairwell.
  • A two-storey property with a garage with a door leading into the property. It is always recommended to speak to your contractor to find out if you require fire doors in your property.

If you are in the process of replacing your internal doors, then fire doors are usually not necessary. However, there is no harm in opting for Fire doors for your peace of mind.

Installation of fire doors 

If you already have your door frames in place, it is best to check that the doors will fit. Our FD30 fire doors have a thickness of 44mm, whereas standard internal doors usually have a thickness of 35mm.

Fire doors must be installed correctly. It is always recommended that a carpenter or contractor be used if needed.

Installing a standard internal door is very different from a fire door. It requires precision and experience. If it is not installed correctly, it could put people’s lives at risk. 

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How is a fire door made?

Most fire doors are constructed with a solid core, usually made up of particleboard, flax, chipboard and timber. All fire doors should be installed with intumescent strips, which are essential for the function of a fire door.

The intumescent strips expand when exposed to heat. This closes the gap between the door and frame. The frame and the door must fit the requirements for it to qualify as fire rated.


Fire door maintenance includes regular inspections and periodic parts replacements, lubrication, and cleaning. Fire doors are especially vulnerable to damage from high temperatures, so all fire door components should be inspected for wear, including the seals.

Maintaining your fire doors is an essential aspect of fire safety. In addition to being in good shape, they need to be regularly inspected, cleaned and lubricated. Lubrication is vital because water can corrode or rust the hinges, bolts and mechanisms that make up your fire doors.

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