Internal Fire Doors in UK

I’ve been really happy overall. So much so that I have gone back to purchase all the ironmongery I needed... then I’ve even purchased another door!

Lesley Hasson

273 Items In This section | View All

You've viewed 256 of 273 Products

Need Help Choosing the Right Internal Fire Door? Ask Our Experts

john member image member image member image member image
Prime Doors

Why Homeowners Trust & Choose Our Internal Fire Doors?

We understand that the right internal fire doors do more than divide rooms; they completely transform how your home looks, feels, and functions. Our doors are designed to bring in natural light, create a more open and airy atmosphere, and enhance the overall style of your interiors while still maintaining the right level of privacy where needed.

With a strong focus on quality and customer satisfaction, we proudly serve UK homeowners with durable and stylish internal fire doors that suit both modern and traditional spaces. From design to delivery, we ensure a smooth experience backed by reliable service and long-lasting products you can trust for your home improvement projects.

  • Largest range of Internal Fire doors in the UK
  • Free delivery on orders over £750
  • Complete satisfaction or your money back
  • Expert response within 24 hours

Internal Door Size Guide

Need some assistance on the right internal door size? Read our guide on door sizes in the UK, including thicknesses and custom-made doors. If you are looking to replace or install a new internal door, our guide will tell you about standard door sizes in the UK, measuring your doorway for the right fit, and whether it is worth getting a custom-made door. Our guide includes information on door sizes and thicknesses, installation tips, and helpful advice.

Learn more

Frequently Asked Questions

What is a fire door?

Fire doors are specially constructed doors designed to resist fire and smoke for a specified period, typically 30 minutes (FD30) or 60 minutes (FD60). In the UK, they play a crucial role in building safety and are regulated under Approved Document B of the Building Regulations. These regulations mandate the use of fire doors in certain areas, particularly in commercial buildings, flats, and houses with three or more storeys.

Internal fire doors create a passive fire safety system, protecting both domestic and commercial buildings by confining fire to a specific area. This containment provides vital extra time for occupants to escape and for emergency services to respond, potentially saving lives and minimising property damage.

We offer cheap, affordable fire doors so you can feel safe and secure at home without having to break the bank.

Why fit a fire door?

Beyond regulatory compliance, fitting fire doors is a proactive safety measure. It's good practice to install them near potential fire sources like areas with a stove, fireplace, oven, or hob. In the event of a fire, these doors can provide your family with vital extra time to escape.

Our fire-rated doors feature intumescent strips that expand when heated to seal gaps, solid core construction for improved fire resistance, and fire-resistant glazing options. They're also compatible with fire-rated hardware, available in our accessories section.

What is the purpose of fire-rated doors?

FD30 fire doors create a passive fire safety system, protecting inhabitants of both domestic and commercial buildings from the spread of fire by confining it to a specific area for a longer period of time.

This allows people within the building enough time to escape via alternative routes that might otherwise be blocked by the fire.

They are a legal requirement for particular buildings, including flats and commercial properties, but the prime purpose of fire-rated doors is to save lives and halt the progress of a destructive fire.

How to fit an internal fire door?

Installation of internal fire doors must be done correctly. We recommend professional fitting to ensure compliance with UK building regulations. Our Help & Advice section provides essential information, including the correct placement of intumescent strips.

The intumescent strip is just one of the key components in fireproof doors, which runs around the edge where the door meets the doorframe.

The intumescent strip helps to trap the smoke and prevents it from spreading into the rest of your home. It also assists in keeping flames from spreading beyond the door.

What are fire-rated doors made of?

We offer a variety of options to suit your needs and budget, from durable composite fire doors to premium hardwood options like walnut, ash and oak fire door. For more economical choices, consider our pine fire-rated door and other softwood options. We also stock primed doors ready for your chosen paint finish.

Can fire doors have glass panels?

Yes! We offer a range of stylish glazed fire doors that maintain their fire rating while allowing light to flow through your space. These fire-rated doors match their standard counterparts, ensuring a consistent look throughout your property.

How Much Does Fire Door Installation Cost?

We provide a selection of fire-rated doors from popular brands like Deanta, LPD and XL Joinery, so whatever your price range, we’ll have the perfect option for you. Contact us today for more details.

What are the standards for fire-rated doors?

Fire rated doors in the UK must comply with BS 476-22 or EN 1634-1 standards. FD30 doors provide 30 minutes of fire resistance, while FD60 doors offer 60 minutes of protection.

What are the legal requirements for a fire door?

Legal requirements for fire doors in the UK include a minimum 44mm thickness for FD30 doors, a self-closing mechanism, intumescent seals, fire-resistant glazing (if applicable), correct signage in commercial buildings, and regular maintenance and inspection.

What is the difference between FD30 and FD60?

FD30 fire doors provide 30 minutes of fire and smoke resistance, while FD60 fire doors provide 60 minutes. FD60 offers a higher level of protection and is typically used in higher-risk or commercial buildings.

How do I know if a fire door is certified?

Certified fire doors will have a label, plug, or certification mark from an approved testing body and will comply with BS 476 or EN 1634 standards.