762mm fire doors (78" x 30")
762mm is the most common fire door width in UK homes, matching the standard internal door size at 78" x 30". The critical difference is that a fire door has a very small trimming allowance. Cutting one down to fit an awkward opening can end its certification entirely.
- In this range
- 15 doors
- Guide price from
- £117.60 inc VAT
On a standard internal door, buying slightly big and trimming to fit is normal practice. On a fire door it is the single most common way an installation is quietly invalidated, and nothing about the finished job looks wrong afterwards.
This page is mostly about that difference, because it is the one thing that changes when the same 762mm width carries a rating.
15 doors
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.
FD30 White Flush Fire Door
The plainest 30-minute fire door there is: a flat primed face over a fire-resisting core, 44mm thick, for a garage door or a loft conversion where nothing has to match.
- Primed MDF
- 44mm
- FD30
Guide price from6 sizes£117.60inc VATFD30 White Shaker Fire Door
A rated door that does not announce itself: square-edged shaker panels on a fire core, so the fire door on the landing matches the painted shaker doors either side of it.
- Primed MDF
- 44mm
- FD30
Guide price from4 sizes£136.80inc VATFD30 White 4-Panel Fire Door
A moulded four-panel face on a 30-minute fire core, for a period house where building control has asked for a rated door on a landing full of painted panel doors.
- Primed MDF
- 44mm
- FD30
Guide price from4 sizes£142.80inc VATFD30 White Vision Panel Fire Door
A 30-minute fire door with a single tall vision panel, so you can see whether anyone is coming the other way before you push it open.
- Primed MDF
- 44mm
- FD30
Guide price from4 sizes£158.40inc VATFD30 White Ladder Fire Door
A 30-minute fire door in the contemporary horizontal-panel shape, primed — the fire door for a modern house rather than a period one.
- Primed MDF
- 44mm
- FD30
Guide price from4 sizes£158.40inc VATFD30 White 6-Panel Fire Door
In a period house, a flush fire door on the hall is often the only modern thing in it. This is the 30-minute door in the Victorian six-panel outline, primed.
- Primed MDF
- 44mm
- FD30
Guide price from4 sizes£165.60inc VATFD30 Oak Fire Door
A 30-minute fire door in oak, 44mm thick. Required on doors between a garage and the house, and on habitable rooms off a stairwell in most three-storey homes.
- Engineered oak
- 44mm
- FD30
Guide price from4 sizes£174inc VATFD30 Oak Shaker Fire Door
When a loft conversion drops a rating requirement onto a landing that already has oak shaker doors, this is the door that matches them. Oak shaker panels on a fire-resisting core.
- Engineered oak
- 44mm
- FD30
Guide price from4 sizes£194.40inc VATFD30 Oak 4-Panel Fire Door
The four-panel oak shape carrying a 30-minute rating, for period houses where the rated door has to sit among original panel doors without being the thing everyone looks at.
- Engineered oak
- 44mm
- FD30
Guide price from4 sizes£201.60inc VATFD30 Oak Ladder Fire Door
The ladder shape in oak on a 30-minute core — for a contemporary house where the fire door has to match a run of oak ladder doors rather than stand apart from them.
- Engineered oak
- 44mm
- FD30
Guide price from4 sizes£218.40inc VATFD30 Oak Vision Panel Fire Door
On a landing or a stairwell, a white fire door is the only thing anyone looks at. Same single vision panel, behind an oak face.
- Engineered oak
- 44mm
- FD30
Guide price from4 sizes£220.80inc VATFD30 Oak 6-Panel Fire Door
For a hallway where the other doors are oak and a flush leaf would announce itself. The six-panel shape, on a 30-minute core.
- Engineered oak
- 44mm
- FD30
Guide price from4 sizes£223.20inc VATFD60 White Flush Fire Door
A 60-minute fire door with a plain primed face, 54mm thick. It comes from a building's fire strategy rather than from preference, and it is not simply a better FD30.
- Primed MDF
- 54mm
- FD60
Guide price from2 sizes£237.60inc VATFD30 Walnut Flush Fire Door
A 30-minute fire door faced in walnut — the rated door for a house whose other doors are walnut, where an oak or a white one would be obvious.
- Engineered walnut
- 44mm
- FD30
Guide price from4 sizes£256.80inc VATFD60 Oak Flush Fire Door
Sixty minutes of fire resistance behind an oak veneer, 54mm thick. The heaviest leaf in the catalogue, and the one least tolerant of being trimmed to fit.
- Engineered oak
- 54mm
- FD60
Guide price from2 sizes£318inc VAT
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Fire doors have almost no trimming allowance
A fire door was tested at a specific size with a specific core, and the manufacturer states how much may be removed from each edge. The allowance is typically far smaller than on a standard internal door, and on some doors it is nil on the top and bottom.
Exceeding it does not merely void a guarantee. It removes the evidence that the door performs for 30 minutes, which is the only reason it is in that opening. [VERIFY: the trimming allowance printed in the instructions supplied with the specific door] — never assume it from another product.
The gaps around the leaf are specified, not chosen
On an ordinary door the gap around the leaf is a matter of taste and season. On a fire door it is part of the tested assembly, because the intumescent seal is sized to close a particular gap when it expands.
Too tight and the door binds; too wide and the seal cannot bridge it. The threshold gap is specified separately again, and it changes depending on whether there is a floor covering under the door. Take all of these from the manufacturer’s installation instructions rather than from habit.
If the opening is not 762mm
Adjust the opening, not the door. Lining out a slightly oversized opening with correctly fixed timber is the normal route, and it keeps the leaf exactly as it was tested. Packing behind the lining has to be done properly, because the fixings are part of how the assembly holds together under heat.
If the opening is smaller than 762mm, drop to the next fire door size down rather than cutting a 762mm leaf to fit. There is a reason fire doors are sold in the same size ladder as everything else.