Fire doors
A fire door holds back fire and hot gases for a tested number of minutes, most commonly 30. The rating belongs to the whole assembly — leaf, frame, seals, hinges and latch together — not to the leaf on its own, and the leaf is thicker and much heavier than a standard internal door.
Most people arrive here because building control has asked for a fire door, usually after a loft conversion or a garage conversion, and nobody has explained what that actually means beyond the two-word instruction.
The short version is that you are not buying a door, you are buying a doorset, and that fitting it correctly matters as much as buying the right one. The guidance below covers what to order and what to check; the rating itself is explained on the FD30 page.
Showing 1 door
Prices are guide prices including VAT, taken from the smallest size and plainest finish of each door. They are not an offer to sell — confirm the price for your size and finish before ordering.
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Buy the doorset, not just the leaf
A fire door is certified as a complete assembly. The leaf, the frame, the seals, the hinges and the latch were tested together, and the certification describes that combination rather than the leaf on its own.
Buying a certified leaf and hanging it in whatever lining is already in the opening is the most common way a fire door installation ends up with no evidence behind it. Nothing looks wrong afterwards, which is precisely the problem.
Where the frame is staying, the question to answer before ordering is whether that frame is suitable and correctly fixed for the door going into it. That is a question for a competent fire door installer.
What should be on the door when it arrives
Certified fire doors carry identification, usually a label or a colour-coded plug set into the top edge of the leaf, tying the door back to its certification. It is on the top edge because that is the one surface nobody paints and nobody can see once the door is hung.
Check it is there before the delivery driver leaves, and keep the paperwork that comes with the door. If the installation is ever inspected, that documentation is the evidence. [VERIFY: the specific certification scheme and marking used by the supplying manufacturer] — schemes differ, and the marking is not standardised across all of them.
Who decides what your building needs
Not us, and not a product page. Whether an opening needs a fire door, what rating it needs, whether it needs smoke seals and whether it needs a self-closing device are judgements made against the regulations that apply to your building and its use.
In England that means Approved Document B, with separate technical standards in Scotland, Wales and Northern Ireland. Buildings in scope of the fire safety regime for multi-occupied residential premises carry further duties again. [NEEDS HUMAN SIGN-OFF] — confirm the requirement with your building control body, a fire risk assessor or a competent installer before you order.
What we can do is make sure the door you order is the one you meant to order, and that the sizing, thickness and finishing information is in front of you before you commit.
A fire door is not fitted and forgotten
Fire doors work on gaps measured in millimetres, so they drift out of specification through ordinary use. Hinges loosen and the leaf drops. A closer is taken off because it was slamming. A door gets wedged open. Carpet is fitted and the threshold gap closes up.
Any of those can undo the performance the door was bought for. Where a building has a duty to maintain its fire doors, that duty includes checking them periodically rather than at installation only. [NEEDS HUMAN SIGN-OFF] on the inspection regime that applies to your building.