Most Irish homes need a fire door in only one or two places, not throughout the house. The most common one is the door between the house and an integral garage. Fire doors also commonly come into the picture in three storey homes and attic conversions, where the doors protect the escape route to the ground floor.
Everywhere else, bedrooms, living rooms, kitchens and bathrooms in a standard two storey house, ordinary internal doors are normally fine. This guide explains the ratings, the places a fire door is most often required, and the checks to make before you order any door for those positions, so you do not pay for ratings you do not need, or miss the one door that does need it.
The Short Answer
| Question | Answer |
|---|---|
| Does every door in a house need to be a fire door? | No. In a typical two storey house, most internal doors do not need a fire rating. |
| Where is a fire door most often needed? | The door between the home and an integral garage is the most common requirement. |
| What about attic conversions and three storey homes? | Doors protecting the escape route commonly need to be fire doors. Confirm the exact requirement for your home before ordering. |
| What does FD30 mean? | The door set resists fire for 30 minutes in tested conditions. FD20 is 20 minutes. |
| Who confirms what my home needs? | Your designer or architect, or your local Building Control office. Always confirm before ordering. |
Fire Door Ratings Explained Simply
Fire doors are rated by how long the complete door set holds back fire and smoke in a test:
- FD20 resists fire for 20 minutes
- FD30 resists fire for 30 minutes, the rating most often talked about for houses
- Higher ratings exist for apartments and commercial buildings, which are outside the scope of a normal house
The rating belongs to the whole door set, not just the door leaf. The frame, the seals, the hinges and the closer all form part of the tested set. That is why a fire door position is planned differently from a standard door position, and why swapping a standard door into a frame that was built for a fire door is a decision to make with advice, not by eye.
Two parts matter that homeowners often miss:
- Intumescent seals sit in the frame or door edge and expand in heat to seal the gap.
- A self closing device is fitted on many required fire doors so the door cannot be left open. A fire door held open with a wedge gives no protection at all.
The Places a Fire Door Most Often Applies
The door between the house and an integral garage
This is the requirement that catches most homeowners. A garage stores fuel, paint and a car, so the door between the garage and the home is treated as a fire separation. If you are replacing that door during a refit, flag its position when you book your measure so it can be checked properly.
Attic conversions and three storey homes
Once a home has a third storey, the stairs and landing become the protected escape route for the top floor. Doors opening onto that route commonly need to be fire doors, and this is one of the standard conditions checked in attic conversion work. If you converted an attic, or are planning to, the doors along the stairs and landing deserve a specific check.
Apartments and duplexes
Front doors of apartments, and some doors inside duplexes, sit under stricter rules because they protect shared escape routes. If you own or manage an apartment, treat its front door as a fire door position unless a competent inspection confirms otherwise, and take advice before replacing it with a standard door.
Rental properties
Landlords have fire safety duties for rented homes, and door condition is part of keeping escape routes safe. If a rented property has a garage door position or a converted attic, check those doors first when planning replacements.
What a Fire Door Does Not Mean
A solid, heavy door is not automatically a fire door. Our guide to solid core and hollow core doors explains the construction differences, and while a solid core door feels substantial and performs well for sound and daily wear, only a door set that has been tested and certified as a set carries a fire rating.
Equally, a fire rating does not have to mean an ugly door. Rated door sets are produced in familiar styles and finishes, so a required fire door can still match the rest of the house when it is planned as part of the set rather than bought in a hurry at the end.
Before You Order: A Five Point Check
- Mark the positions. Walk the house and note any door between the home and a garage, and any door on the escape route of a third storey or attic conversion.
- Check for closers and seals. A door with a self closer and seals in the frame is a strong sign it was fitted as a fire door.
- Do not downgrade. If a position currently has a fire door, replace like with like, or better, unless a designer confirms in writing that the rating is not needed.
- Confirm the requirement. Your designer, architect or local Building Control can confirm what your home needs. The rules for dwelling houses are set out in the Government’s Technical Guidance Document B, which our internal door fitting cost guide also links to.
- Plan sizes early. Fire door sets come in set sizes, so measure those openings first. Our guide to standard internal door sizes in Ireland helps you check what you have.
How We Handle Fire Door Positions at a Measure
When you book a free home measure, tell us if your home has an integral garage, a third storey or an attic conversion. We will flag those door positions during the measure, measure them first, and talk through what needs checking before any door is ordered for them. For the standard doors in the rest of the house, you can browse our full range with prices shown, from €199 to €500 per door.
If you are unsure whether a door in your home needs a rating, a measure is the right place to raise it. Call 083 814 7923 or use the contact page and mention the garage or attic when you book.
Frequently Asked Questions
Do I need fire doors throughout my house?
No, not in a typical two storey house. Fire doors most often apply to specific positions: the door to an integral garage, and doors protecting the escape route in three storey homes and attic conversions. Confirm the positions in your home with your designer or Building Control.
What is the difference between FD20 and FD30?
The number is the tested fire resistance in minutes for the complete door set: 20 minutes for FD20, and 30 minutes for FD30. The set includes the door, frame, seals and hardware, all tested together.
Is a solid core door the same as a fire door?
No. A solid core door is a construction type, valued for weight, feel and sound reduction. A fire door is a certified door set with a tested rating. A solid feel alone does not give a door a fire rating.
Can a fire door match my other internal doors?
In most cases yes, when it is planned with the set. Rated door sets are made in common styles and finishes, so the garage or escape route door does not have to look like an office door in the middle of your home.
My home has an attic conversion. Which doors should I check?
Start with every door that opens onto the stairs and landing route down to the ground floor, because that route is the escape path from the top floor. Note any with closers or seals fitted, and get the requirement for each position confirmed before ordering replacements.
