Bifold doors are one of the few products where two people can use the same phrase and mean completely different things. One means a pair of folding leaves closing off a wardrobe or a study. The other means a glazed folding wall across the back of an extension. This guide is about the first kind, because that is what we supply, and it prices it using real figures from our own catalogue rather than estimates.
Doors2Floors has supplied doors and flooring to homes and businesses across the UK. Our bi fold doors collection currently holds 15 lines, sitting alongside over 710 internal doors. Every price below is live catalogue pricing, not a market average.
What You Are Actually Buying When You Buy a Bifold
A folding door is a system, and the system has more parts than a hinged door. Pricing only the leaf is the most common budgeting mistake on this product.
The leaves
These are the folding panels themselves. They are ordinary door sized leaves, usually narrower than a standard door because two or more of them share one opening.
The frame kit
This carries the track, the pivots and the jambs. It is sized to the opening width and the panel arrangement, and it is a substantial part of the cost.
The folding gear
Hinges between the leaves, top pivots, bottom guides and the runners in the track. On a supplied kit this is included. On a self assembled arrangement it is not.
The handles
Folding doors need flush or pull hardware rather than a projecting lever, because a projecting lever fouls the fold. We list over 280 pull handle lines covering flush and recessed options.
The opening preparation
Bifolds are less forgiving than hinged doors. The head must be level and the reveals must be plumb, or the leaves will not stack cleanly.
The finishing
Primed leaves need painting, unfinished timber needs sealing, and both need the edges done as well as the faces.
Real Bifold Door Prices at Doors2Floors
These are current live prices. They are the reliable part of any bifold budget.
The entry point
Our cheapest folding leaf is the LPD Textured 4 Panel Bi-Fold White Internal Door at £131.35, followed by the Textured 6 Panel at £136.60. Both are supplied in 1981mm x 762mm, the 78 inch by 30 inch size.
Primed white options
The LPD Pattern 10 Bi-Fold Primed White sits at £182.52, the Vancouver Bi-Fold Primed White at £232.44, and the Mexicano Bi-Fold Primed White at £319.36. Primed means you apply the topcoats.
Glazed folding leaves
Glazing raises the price and transforms a dark space. The Pattern 10 Bi-Fold Glazed Primed White is £226.98, the Shaker 4 Light Bi-Fold Glazed Primed White is £264.97, and the Pattern 10 Glazed Bi-Fold Unfinished is £272.91.
Oak folding leaves
The Mexicano Unfinished Oak Bi-Fold is £242.93, the Vancouver Fully Finished Oak Bifold is £259.21, and the Mexicano Fully Finished Oak Bi-Fold is £273.68. If you are weighing oak against painted, our white versus oak comparison covers the long term view.
The full spread
Folding leaves in our range run from £131.35 to £319.36. That is the whole spread for the panels. Anything you read that puts internal folding leaves far outside that band is describing a different market to ours.
Frame Kits: The Half of the Budget People Forget
The frame kit is frequently more expensive than the leaves, and it is the item most often left out of a rough calculation.
What a frame kit includes
The jambs, the head with its integrated track, the pivots and guides, and the fixings. It is engineered for a specific panel arrangement and opening width.
White primed frame kits
The Deanta White Primed Bifold Frame Kit starts at £345.50 and is available in six configurations.
Oak frame kits
The Deanta Oak Bifold Frame Kit Unfinished starts at £375.75 and the Fully Finished version starts at £391.50. The widest oak configurations reach £596.
Walnut frame kits
The Deanta Walnut Bifold Frame Kit Fully Finished starts at £406.25 and reaches £624 in the widest configuration. Our oak versus walnut guide explains the difference in practice, and we list over 30 internal walnut doors if you want to match elsewhere.
Why kits vary by width, not just material
A wider opening needs a longer track, a stronger head and more gear. That is why the same kit in the same finish costs more at three metres than at two.
Kit plus leaves is the real number
A realistic internal folding installation is the frame kit plus the leaves plus the handles. Using our current prices, the cheapest complete combination is the white primed kit at £345.50 with textured leaves at £131.35 each, plus flush pulls. Build your budget that way and it will not move.
Configurations and What They Mean
Bifold frame kits are described by how the panels split and how wide the opening is. Getting this notation right is the difference between a kit that fits and an expensive return.
Two panel arrangements
The 2+0 configuration suits a 2.0 metre opening and folds both leaves to one side. It is the simplest and cheapest arrangement and it suits wardrobes and utility openings.
Two plus one
The 2+1 configuration suits a 2.5 metre opening, with two leaves folding one way and one the other. It gives a usable pedestrian leaf without opening the whole run.
Two plus two
The 2+2 configuration suits a 3.0 metre opening and splits evenly, stacking to both sides. It is the tidiest option for a wide room divider opening.
Three panel arrangements
The 3+0 configuration suits a 2.5 metre opening and stacks all three leaves to one side, which needs clear wall on that side.
Three plus one
The 3+1 configuration suits a 3.0 metre opening and is the usual answer where you want a wide clear span but still need a single leaf for everyday use.
Four panel arrangements
The 4+0 configuration also suits a 3.0 metre opening, stacking all four leaves one way. Stack depth becomes a real design consideration at this width.
Stack depth is a cost you pay in floor area
Folded leaves take up space beside the opening. On a 4+0 arrangement, that stack sits proud of the reveal and it will not sit flat against the wall. Plan furniture around it before you commit.
Choosing the configuration before the finish
Configuration determines the kit price far more than colour does. Decide how the opening needs to work, then choose the finish within that.
Internal Folding Doors Versus Glazed Folding Walls
This is where most bifold cost confusion starts, and it deserves a plain answer.
What we supply
We supply internal folding doors and frame kits. Everything priced on this page is an internal product intended for a dry, heated interior.
What we do not supply
We do not stock external aluminium or uPVC folding walls, so we are not going to publish a price for them. Any figure we invented for a product we do not sell would be a guess presented as expertise, and you would have no way to check it.
Why the two are not comparable
An external folding wall is a thermally broken, weather sealed, security rated glazed structure that usually requires a structural opening. An internal folding door is a set of timber leaves on a track. They share a mechanism and nothing else.
If you want an external opening
Speak to a specialist glazing supplier and get quotes for your actual opening, and take structural advice before you widen anything. Our U values guide explains how to read the thermal figures they will quote at you.
What we do offer for external openings
Our external doors range covers 96 lines from £86.79, our glazed external doors selection covers 35 lines from £274.81, and our 18 composite external doors start at £725.00. Our front door costs guide covers that side of the house.
Sizes We Actually Stock
Bifold leaves are narrower than standard doors by design. Knowing the real sizes saves a wasted order.
The two leaf widths
Our folding leaves are supplied in 1981mm x 686mm, which is 78 inches by 27 inches, and 1981mm x 762mm, which is 78 inches by 30 inches. The two entry level textured lines are 762mm only.
Why 1981mm keeps appearing
It is the long established UK standard door height and almost every internal product is built around it. Our internal door sizes guide sets out the full standard range.
Measuring the opening
Measure the structural opening width at three heights and the height at three widths, then work to the smallest. Check the head is level and both reveals are plumb. Our door measuring guide covers the method.
Trimming allowances
Folding leaves have a smaller trim allowance than a standard door because they are narrower to begin with. Check the manufacturer allowance before you plane anything, and read our guide on planing a door first.
Floor levels
The bottom guide needs a consistent floor level across the whole run. A sloping or stepped floor is a genuine problem for a folding door in a way it is not for a hinged one.
Head height and ceilings
The track sits in the head of the kit, so the finished clear height is lower than the structural opening. Allow for it before you order.
Finishes and What They Cost You Later
Primed leaves
Cheapest to buy, and they need painting. Our painting guide covers achieving a factory looking finish on a leaf, and folding doors have more faces and edges than a single door, so allow more time than you think.
Unfinished timber leaves
The Mexicano Unfinished Oak at £242.93 and the Pattern 10 Glazed Unfinished at £272.91 arrive bare. Seal every face and every edge, including tops and bottoms, or the leaves will move.
Fully finished leaves
The Vancouver Fully Finished Oak at £259.21 and the Mexicano Fully Finished Oak at £273.68 arrive ready to hang. On a multi leaf folding set this saves considerably more decorating time than it does on a single door.
Matching the frame kit to the leaves
Buying a fully finished oak leaf and an unfinished oak kit means matching two different oaks by hand. Buy the pair in the same finish if you possibly can.
The finish decision in one line
If nobody in the household enjoys painting, the fully finished route usually wins on a folding set. Our finishes guide explains the categories properly.
Oily rag safety
If you are oiling timber leaves, remember that oil soaked cloths can self heat and ignite. Dry them flat outdoors or immerse them in water before disposal.
Fitting a Bifold: Why It Is Harder Than Hanging a Door
A hinged door forgives a lot. A folding door does not, and that is where the labour difference comes from.
The head has to be level
The track is the head. If it is out of level, the leaves will drift open or closed on their own, and no amount of adjustment at the pivots will fix it properly.
The reveals have to be plumb
Out of plumb reveals show as tapering gaps down the closing edge. On a hinged door you scribe it out. On a folding set the taper multiplies across every leaf.
The gear needs setting, not just fixing
Pivots and runners are adjustable for a reason. Setting them so the leaves fold smoothly and sit flush when closed is the skilled part of the job.
Weight distribution
Two leaves hanging from one pivot behave differently to one leaf on three hinges. Heavier oak sets need the gear set more carefully than light textured sets.
The floor guide
Most systems need a guide at the bottom. Fixing it into the wrong point, or into a floor covering rather than the substrate, causes most of the folding problems people report later.
Working sequence
Fit the kit, hang the leaves, set the gear, then fit the handles. Fitting handles first almost always means removing them again.
Why we do not print a fitting rate
We supply doors, we do not employ joiners, and we do not see their invoices. Labour rates vary by region, by season, by how busy the trade is and by the scope of the job. Get three written local quotes against the same specification instead of trusting any published average, including one on a supplier website.
What Makes a Bifold Quote Go Up
Opening width
Wider openings need bigger kits, more leaves and more setting time. This is the single biggest driver.
Panel count
Each additional leaf adds gear, adds weight and adds an alignment surface. A 4+0 takes noticeably longer than a 2+0.
Leaf weight
Glazed and solid oak leaves are heavier and often need two people to hang safely.
Out of square openings
Older UK houses settle, and folding doors expose that settlement more visibly than any other door type.
Structural work
Forming or widening an opening is structural work. Do not take a view on this yourself. Get structural advice from a suitably qualified professional.
Floor covering
Laying a floor after the bifold has been set is a good way to end up with a door that will not fold. Sequence the floor first where you can. Our notes on flooring mistakes and our flooring range of 12 Karndean lines from £14.00 cover the surface side.
Making good
New kits usually mean new plaster edges and new architrave. Our architraves guide covers the trims and our door kits and fitting hardware section holds 16 lines.
Access
A cleared room with a place to cut and a level surface to lay leaves on saves real time.
DIY Versus Paying a Professional
What DIY saves
The labour line only. Materials do not get cheaper and folding gear is unforgiving of guesswork.
What DIY risks
A folding set that binds, drifts, catches the floor or shows uneven gaps. Unlike a hinged door, you cannot fix most of these by moving a hinge.
Tools you will need
A long spirit level, a laser level if you have one, a good tape, a combination square, a cordless drill and driver, a chisel set, packers, a straight edge and a second pair of hands.
When DIY is reasonable
A 2+0 kit into a level, plumb, square opening with light textured leaves is genuinely achievable for a confident home improver.
When to pay someone
Anything three panels or wider. Anything glazed and heavy. Anything where the opening is visibly out of square. Anything structural.
The middle path
Buy the kit, leaves and handles yourself so you control specification and price, then pay a joiner for labour only.
Bifolds Compared to the Alternatives
Folding is not always the right mechanism. Here is how it stacks up against what else we sell.
Against hinged doors
A hinged leaf from £30.84 is a fraction of a folding set and needs swing space. Folding wins where swing space does not exist.
Against sliding doors
Our 16 sliding door kit systems keep the leaf on the wall rather than folding it. Sliding suits a single wide leaf, folding suits a wide opening you want mostly clear.
Against pocket doors
Our 4 pocket door systems from £298.99 hide the leaf inside the wall entirely, which is the tidiest result and the most disruptive installation.
Against french pairs
Our 3 french door pairs from £407.44 give a symmetrical opening with no track. Our french doors guide covers when a pair beats a fold.
Against room dividers
Our 17 room dividers run from £498.06 to £1,392.15 and are the fixed panel answer to a wide opening. They cost more and they need a properly prepared structural opening.
Against a wider cased opening
Sometimes the honest answer is no door at all. If the opening does not need closing for heat, noise or smell, an open cased opening with good architrave is cheaper and looks intentional.
How to decide
Ask what the door is for. Privacy, noise, heat, smell or looks. The answer usually points at one mechanism. Our explainer on how bifold doors work and our bifold door ideas gallery cover the practical and the visual.
Room by Room: Where Bifolds Earn Their Money
Wardrobes and dressing areas
This is the classic use. A 2+0 kit with two textured leaves gives full access to a run of hanging space without a door swinging into the bedroom.
Between kitchen and dining
Folding doors let you open the two spaces for entertaining and close them when cooking smells or noise would carry. Glazed leaves keep the light moving.
Living room to conservatory
A folding set here controls heat loss into an unheated garden room in winter and opens completely in summer. Our conservatory flooring notes deal with the temperature swings underfoot.
Home office within a larger room
Closing off a working corner matters more than it used to. Solid leaves do more for sound than glazed ones.
Understairs and utility
Narrow, awkward openings where a swinging door would foul something. Folding is often the only mechanism that fits.
Playrooms and snugs
Open for supervision, closed for quiet. A 2+1 arrangement gives you a normal pedestrian leaf for everyday use.
Where bifolds do not work
Main circulation routes where a stack sitting proud of the reveal becomes an obstruction, bathrooms where you need a reliable privacy latch, and any opening where the floor is not level across the run.
Fire separation openings
Do not use a folding door where fire separation is required unless the specific assembly is certified for it. Our fire doors range of over 240 lines from £87.39, including over 150 FD30 and 8 FD60 lines, exists for those openings. Confirm what your building requires with your local building control body or a competent fire risk assessor.
Handles and Hardware for Folding Doors
Why standard levers do not work
A projecting lever hits the adjacent leaf or the reveal when the set folds. Flush or recessed hardware is the norm.
Flush pulls
Our over 280 pull handle lines include round and rectangular flush pulls in stainless and matt black.
Edge pulls
An edge pull on the leading leaf makes the set easier to start folding, particularly on heavier oak leaves.
Where a lever still makes sense
On a 2+1 or 3+1 arrangement, the single pedestrian leaf can take a normal lever if it clears the fold. Our over 2,500 door handle lines and over 280 handle packs from £8.99 cover that, and our handles guide explains the functions.
Traditional interiors
Our over 210 handles on back plate lines suit period rooms, though backplates rarely suit a folding leaf.
Magnetic catches and stays
A light catch on the closing leaf stops a folding set drifting open. It is a small item that solves the most common complaint.
Door stops
Our over 30 door stop styles from £10.88 protect walls where a folded stack could swing into plaster.
Buy hardware before fitting day
A fitter waiting while you choose flush pulls is the most expensive part of the whole job.
Living With a Bifold
Seasonal movement
Timber moves. Folding sets show it sooner than hinged doors because tolerances are tighter. Our guide on stopping doors swelling covers the causes.
Squeaks and stiffness
Runners and pivots need occasional cleaning and lubrication. Our notes on stopping doors squeaking apply to the pivots as much as to hinges.
Draughts
Folding sets are not draught seals. If cold air is coming through, look at the head and the floor gap first. Our draughty doors guide covers the practical fixes.
Cleaning the track
Dust and grit in the track is the single most common cause of a folding door that suddenly feels heavy. Vacuum it every few months.
Pets and children
Folding leaves have pinch points at the fold. If small hands or paws are in the house, plan for it. Our guides on dogs scratching doors and cats scratching doors cover surface damage.
Repainting later
Take the leaves off, lay them flat, and do the edges. Our maintaining painted doors guide covers the schedule.
Caring for oak leaves
Our guide to cleaning and maintaining oak doors covers what to use and what to keep away from the surface.
A lead paint warning
If you are replacing folding doors in a home decorated before 1992, existing joinery may carry lead paint. Do not dry sand it and do not burn it off. Take advice on safe removal first.
Regulations, Consents and When to Ask Someone Official
Structural openings
Widening an opening for a folding set is structural work and needs structural advice before anything is cut.
Fire separation
Requirements depend on the building, its use and its layout. Confirm with your local building control body or a competent fire risk assessor rather than any published summary.
Listed buildings and conservation areas
Listed building consent, conservation area rules, Article 4 directions, restrictive covenants and leasehold terms can all restrict internal alterations. Ask your local planning authority, freeholder or management company before ordering.
Ventilation
Never block ventilation serving a gas or solid fuel appliance and never block underfloor airbricks. Closing off a room changes its airflow.
Accessibility
Clear opening width and hardware height matter if anyone in the household has mobility needs. Never place a loose rug at the foot of a staircase or in front of a folding stack.
Electrical work
Moving a switch or socket to clear a folded stack is work for a qualified electrician.
Working at height
Track work at high level in a double height space is not a ladder job. Pay a professional above single storey.
Building a Bifold Budget That Survives the Quote
The reason bifold budgets go wrong is almost never the leaf price. It is everything sitting either side of it. Work through these lines in order and nothing will surprise you.
Line one: the frame kit
Start here, not with the leaves, because it is usually the biggest single item. Our kits begin at £345.50 in white primed and reach £624 in the widest walnut configuration.
Line two: the leaves
Multiply your panel count by the leaf price. Two textured leaves at £131.35 is a very different number to four fully finished oak leaves at £273.68.
Line three: the hardware
Flush pulls for every leaf that needs one, plus a catch. Small money, but it is money.
Line four: decoration
Primed leaves need topcoats on every face and edge. On a four panel set that is eight faces and a lot of edges.
Line five: making good
New plaster edges, new architrave, and repainting the wall either side of the opening.
Line six: the floor
If the floor is being replaced, that is a separate budget and it has to happen first.
Line seven: labour
Priced by your local fitter against your actual opening, not by an average printed on a website.
Line eight: contingency
Openings are rarely as square as they look. Hold something back.
Comparing quotes fairly
Give every fitter the same configuration, the same kit reference, the same leaf reference and the same hardware list. Without that, you are comparing three different jobs.
What a good quote itemises
Labour separately from materials, a stated allowance for setting and adjusting the gear, who supplies the hardware, who removes the waste, and whether decorating is included.
The false economy list
Buying a kit narrower than the opening and packing it out. Reusing gear from an old set. Fitting leaves before the floor. Skipping the bottom guide. All three cost more to correct than they saved.
Where the genuine savings are
Choosing a 2+0 over a 3+1 where the opening allows. Choosing primed and painting yourself. Buying kit, leaves and hardware in one order rather than three.
When a bifold is not the value answer
If the opening is under a metre, a single hinged leaf from £30.84 will always be cheaper, quieter and easier to live with. Folding earns its price on wide openings, not narrow ones.
Planning the wider project
If the bifold is part of a bigger refresh, price the whole door schedule together. Our guides to budget internal doors, the best internal doors and doors for modern homes help you specify the rest of the house at the same time, and our over 80 white primed doors from £30.84 and over 350 fully finished doors from £75.00 are the usual companions to a folding set.
Your Bifold Buying Checklist
Measure the structural opening properly
Width at three heights, height at three widths, and work to the smallest figure.
Check level and plumb before you order
A spirit level across the head and down both reveals. Note anything out, because it changes the fitting scope.
Choose the configuration first
Decide 2+0, 2+1, 2+2, 3+0, 3+1 or 4+0 based on how the opening needs to work and where the stack can sit.
Confirm the stack has somewhere to go
Measure the wall beside the opening. Folded leaves need that space and they are not flat against the wall.
Match kit and leaf finishes
Order the frame kit and the leaves in the same finish from the same range wherever possible.
Buy flush hardware, not levers
Unless you have a dedicated pedestrian leaf that clears the fold.
Sequence the floor first
Or accept that someone is coming back to adjust the bottom guide.
Acclimatise the leaves
Lay them flat in the room they will live in for a few days before fitting.
Get three written quotes
Against the same specification, with labour separated from materials and a stated allowance for adjusting the gear.
Hold a contingency
Something will be out of level. On a folding door, that always costs time.
Frequently Asked Questions
How much do internal bifold doors cost?
In our current range, folding leaves run from £131.35 to £319.36 and frame kits from £345.50 to £624 depending on width and finish. A complete set is kit plus leaves plus flush hardware.
Why do you not quote external bifold prices?
Because we do not sell external folding walls. Publishing a price for a product we do not supply would be a guess, and you would have no way of checking it against anything.
Is the frame kit really necessary?
For a proper folding installation, yes. The kit carries the track and the gear. It is not an optional extra.
Can I fit bifold leaves to an existing lining?
Only if that lining already carries a suitable track and gear. A standard door lining does not.
What sizes do your bifold leaves come in?
1981mm x 686mm and 1981mm x 762mm. The two entry level textured lines are 762mm only.
How wide an opening can a bifold cover?
Our frame kits cover configurations up to 3.0 metres. Wider than that and you are into room divider or specialist territory.
Are glazed bifolds worth the extra?
If the opening is between a bright room and a dark one, usually yes. Our glazed folding options run from £226.98 to £272.91.
Do bifolds need a floor track?
Most systems use a bottom guide rather than a full track, but the floor still needs to be level across the run.
Can I fit a bifold myself?
A 2+0 into a level, plumb opening with light leaves is achievable. Three or more panels, or heavy glazed leaves, are better paid for.
What if my opening is out of square?
Identify it before quoting. Folding doors show out of square openings more clearly than any other door type, and fixing it is a lining job, not an adjustment.
Do bifolds keep heat in?
They close an opening, but they are not sealed units. If heat retention is the main aim, a well fitted hinged door does more.
Are bifolds good for sound?
Less good than a solid hinged door in a well fitted lining, because there are more gaps. Solid leaves beat glazed ones.
Do folding doors suit bathrooms?
Rarely. Privacy latches and folding leaves do not combine well, and bathroom humidity is hard on timber.
How do I stop my bifold drifting open?
Check the head is level first. If it is, a magnetic catch on the closing leaf solves it.
What makes a bifold feel heavy?
Grit in the track, a dropped pivot setting or a bottom guide fouling a floor covering. Clean it before you adjust it.
Should I buy oak or primed?
Primed if you or a decorator will paint. Oak if you want the timber visible and are prepared to seal or maintain it. Our over 290 internal oak doors from £87.75 show what oak looks like elsewhere in the house.
Can bifolds be fire rated?
Do not assume so. Use a certified assembly for fire separation openings and take advice from your local building control body or a competent fire risk assessor.
Are bifolds cheaper than a room divider?
Yes at our current prices. Dividers run from £498.06 to £1,392.15, above a complete folding set.
What is the cheapest complete bifold option?
The Deanta White Primed Frame Kit at £345.50 with LPD Textured 4 Panel leaves at £131.35 each, plus flush pulls.
Where should I start?
With the opening, not the catalogue. Measure it, check it is level and plumb, work out where the stack goes, and then choose.
Buying Bifold Doors From Doors2Floors
We have supplied doors and flooring to homes and businesses across the UK. Our bi fold doors collection currently holds 15 lines covering primed, glazed, oak and walnut options, with leaves from £131.35 and frame kits from £345.50. Every figure on this page is live catalogue pricing.
If a folding door turns out not to be the answer, our over 710 internal doors from £30.84, our over 20 clearance doors from £53.00 and our full advice centre will help you find the mechanism that suits the opening. Our guides to choosing the right door, door materials, hollow versus solid core, internal door fitting costs, traditional versus modern styles and popular door styles cover the decision from every angle.
Prices and product counts are correct at the time of writing and are subject to change. Manufacturer fitting and finishing instructions always take precedence over general guidance. Regulatory requirements vary by building, use and location. Confirm your specific obligations with your local building control body, a competent fire risk assessor, your local planning authority or a suitably qualified professional before ordering or carrying out work.