Folding Doors

We supply and deliver most of our folding doors within 72 - 96 hours anywhere in the UK but some suppliers do take up to a week, delivery of the frames, doors and fittings may be from two specialist suppliers.

Folding doors can add a touch of class to your home, flooding your property with natural light. Whether you’re looking for bi-folding or tri-folding doors, multifold or external doors, our extensive product range gives you the opportunity to put your own unique stamp on your home.

Our interior folding doors in particular fit with a number of popular design trends. Contemporary white and classic oak, through to walnut, flush, panelled, and glazed, there’s truly something to suit everyone.

We can help:

At Direct Doors, we know doors, and on this page we’ll help you choose the ideal set of folding doors for a price that suits your budget.

With over 30 years of sourcing and installing doors, we can advise you of the very best options for your situation. What we’ve learned more than most is that the right choice of doors comes down to quality and style, rather than price.

But if you’re looking for the right doors at the right price, you’ve come to the right place.

We’ll guide you through the process of choosing your new set of doors, helping you understand the various styles, materials, and finishes.

Folding Door Construction:

Our oak, hardwood, and white fully finished external folding doors are all supplied with the glass factory-installed in the doors.

The glass used in all of our internal and external models is toughened safety glass, in order to comply with British standards. The aluminium bi-folding doors also have safety double glazing as standard.

And where we state that the folding doors are supplied in ‘kit form’, we can assure you that the glass or panels are always fitted and that they are hinged together to form a bi-fold pair.

The frames and the locking mechanism are supplied pre-machined and in kit form, ready for immediate installation.

Folding Door Sizes - Folding Door Styles: 

A large range but broken down in to simple easy to navigate categories, we have then added simple filters to allow you to see the chosen configuration, door style and finish that best suit you and your home.

A brilliant and varied range of folding doors for the home, the range encompasses Exterior Folding Doors and Interior Folding Doors in various styles and finishes.

Our oak, hardwood or white fully finished external folding doors are supplied with the glass factory installed in the doors, the frames and the locking mechanism are supplied pre-machined and in kit form.

Exetrior folding doors are available with sizes starting at 1827mm wide and 2090mm high all the way up to our 6 door bi folding sliding doors which can be as wide as 4800mm (4.8meters) to cover the largest of openings.

The glass in all our internal folding doors and external wooden folding doors is toughened safety glass to comply with British standards, the aluminium bi-folding doors also have safety double glazing as standard and the range of sizes for these folding patio doors is second to none.

Whether Bi folding doors, Tri folding doors or Multifold doors, we do it!

The interior folding doors vary from white doors through oak and walnut as well as flush, panelled or glazed, a massive choice in an even gretaer range of size.

A massive range of folding doors which include panelled bi fold doors, glazed bi folding doors, flush folding doors, oak bi fold doors and white folding doors, a larger range but easily navigated to provide a product that will suit your home.

Thrufold Folding Door Fittings and Frame Components Note:

All Thrufold door products are cut to size upon receipt of order and cannot be cancelled afterwards, they are classed as a bespoke item created and manufactured by DirectDoors.com to suit your exact folding door dimensions.

Please be aware that each image or PDF's for our internal folding doors show a position of a flush pull, hinges, slip bolt etc but the position of each item is very dependent on how you and your carpenter decide the doors should open.

There will be occasions when you may decide that the flush pull is better fitted in the centre of the middle door for a 3 door set or indeed a latch handle is fitted on the main opening door, you may also decide that you do not want to fit the slip bolt - each and every decision is yours to make - just decide before fitting any of the above items.

The small door stops (25x12mm) for some of the configurations will have to be "offset" so one leg allows the main door to close against it in a traditional manner whereas the same door stop will be fitted on the opposite side at the other frame leg.

Configuration choices are:

  • 2+0, two doors opening left or right. 
  • 2+1, two doors on one side and one opposite. 
  • 3+0, three doors opening left or right. 
  • 2+2, two doors opening to each side. 
  • 3+1, three doors on one side and one on the opposite. 
  • 3+2, three doors opening to one side and the other two opening to the opposite side. 
  • 3+3, three doors opening to each side. 

The door types are flush, panelled or glazed in a range of real wood veneers, we also offer white or colours such as grey painted and lastly laminates, oak folding doors whether fully prefinished or not have unfinished oak veneered frames while all other folding doors such as walnut, painted colours or white have white primed frames...... prefinished relates to the actual door - not the frame material.

Our Thrufold frames use three main individual door widths which are 686mm, 762mm and 838mm, when you combine these sizes with all the configurations you have 21 folding door widths from 1445mm all the way through to 5115mm wide, massive choice but easy to search and choose.

All Thrufold MDF frame items are supplied in kit form with full track and fittings but without screws or nail fixings, they are not assembled, glass is pre-installed in the doors where there are glass apertures.

On this page you’ll find several categories in which to browse our extensive range of folding doors, including a large variety of internal (concertina) and bifold doors, lastly a full range of external folding doors. 

And with a selection of materials, finishes, and compatible fittings - including handles, hinges, and locks - there really is something to suit all tastes.

In this section, we’ll briefly cover some of the key features of our product range.

Do it right:

If being green is important to you, then we can confirm which of our wooden doors are FSC-certified.

This registration results in a safe chain of custody to guarantee the controlled sourcing of materials supplied in the manufacture of those doors. If you’d like more information on FSC-certified doors, contact us here.

Completing the look you’re after for your home or office means going beyond selecting the right folding doors. There’s an attention to detail that comes with choosing the perfect handles, hinges, and locks; one that can make or break the final touches to an interior design project.

We boast an expansive range of door furniture, from antique-style handles and fittings that will accentuate the grandeur of a traditional internal door, to modern, contemporary handles that will complement your sleek, chic interior.

Useful Folding Door Info:

Our internal folding doors can be purchased as either Bi-fold Doors or Internal Folding doors and delivery is free to anywhere within the mainland UK regardless of the type of door selected whether it be a single bifold door for a cupboard or a large multifold door to separate a room.

It has been proven that folding doors can help cut down on heat loss within a large room, a combined dining / lounge being the most popular rooms to sub-divide and can also be used to reduce the level of noise from washing machines and other kitchen appliances in properties with open plan layouts, the range of doors is simply enormous and encompasses flush, panel and glazed options in a range of timber types such as pine, oak, walnut, beech or white primed, numerous doors are prefinished and will not therefore require any further decoration.

Simply the best Flush Doors, Panelled Doors or Doors with Glass that will add a large degree of versatility within your home whereby rooms can be opened up for social gatherings or closed off to give you a degree of privacy or seclusion within a room. 

Please be aware that we may use narrower doors for some sizes of this product whether panelled or glazed, they may have narrower panels or glass than the image shown, this is because the timber sections that make up the doors construction remain the same size across the full range of door sizes.

All our internal bi fold doors can open towards or away from you, all you have to do is set the hinges accordingly during installation to suit your own requirements.

Folding Door Costs:

How long is a piece of string, doors can vary from the most basic of bi fold doors at £100 or less all the way up to internal folding doors in our bespoke range at £3000, we also have wide varaitions of price within the exteranl door ranges, your choice is a personal thing and not necessarily weighted towards cost........ more practical things like style, colour or material used in construction.

Measuring and Fitting:

First, we must advise that if you’re not an experienced DIY enthusiast, you may wish to seek the assistance of a seasoned joiner to help you measure and fit your new folding doors.

And please note: The DIY advice provided on our website is only a guideline for the installation of interior doors. We cannot accept liability for any mishap, injury or damage caused to you, your property or a third party while following this advice.

Our unrivalled experience in fitting folding doors means we can advise on which doors in our product range can be cut, and by how much, in both height and width.

If you’d like more information on the entire measuring and fitting process, visit our Help Section.

When measuring your folding doors, ignore the current door size and follow the advice below. Be aware that in most cases there are locating pins to the top and bottom of most bi-fold doors

Width: Measure each opening between the frame at the top, the middle and the bottom.

Select a door set that fits the widest size. This is because the widest size can be adjusted by you to suit the narrow area of any part of the opening without compromising the stability or affecting the look of the doors - small adjustments to each door edge can help you find just the right size but is not a recommended process for exterior doors.

Height: Measure from the carpet/floor covering to the underside of the timber lintol.

Thickness: Now and only now do you measure the door to find out how thick it is at present. With interior doors you may have to compromise and fit a slightly thinner door. This does not normally present any problems.

All of the Internal bifold (single) sizes quoted are to suit "openings" of that size, the folding door kits are always smaller by about 10mm -15mm in width and the height is smaller by 35mm-40mm to allow for the addition of the track which goes above the door set, the track is included, these clearances allow the correct operation of the Bifold track and associated hinge pins. 

Bifold Product Details:
Bifold Fitting Instruction Details:
How to Fit a Bifold Door


For a bright and welcoming entry into your home why not take a look at our external folding doors.

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