Open corner bifold doors

Anyone designing a property extension will know that many decisions are based on design compromises, usually working around space limitation or regulatory requirements.  Bifolding doors are the No.1 product installed in home extension work, and now you can explore the added advantages of corner bi fold doors to add something extra to your project. The open corner arrangement gives a completely new dimension to bifolding doors and is well worth considering.

What are open corner bifold doors?

Whilst the concept of bifolding doors on a corner is not new, traditionally there has been a structural corner post that is static.  When the doors are slid back on each side, you will often see the corner post remain in position.  But what if you want a completely open corner?

Origin doors have for many years been supplying their bifolding doors with the open corner arrangement.  Their clever design on bifolding doors means that you can create a full opening round a corner with no static corner post and give a completely different view from normal. The system works by connecting the corner post to one side of the corner.  The main set of doors will slide back as normal.  You then unlock using the locking flush bolt arrangement the corner post and the set of doors on the return.  All doors are now opened and including the corner post which has moved with the set of doors it is connected to. The construction of your extension will require a cantilevered arrangement on the roof to provide the necessary structural support to the building.  This need not be complicated.  With the right advice from your architect, builder or structural engineer, this is easily designed and constructed.


Corner bifolding doors are available in many configurations.

You can have a flexible open corner that can consist from two to six or more leaves on the one side and one or two or more on the other; depending on the size of the structural opening and what is being constructed.  The doors will all have matching hardware and hinges. What you will notice is a very smooth unlocking of the corner post and the doors but one that is also highly secure.

In the closed position the sight line of the corner post is only 82mm which does not add significant bulk to the aluminium door and frame profiles when the doors are closed. The moving corner post on bifolding doors is not available with every system as it is with Origin Doors. Many of the other mainstream systems are unable to offer this flexible arrangements.

The YouTube video below shows the Origin bifolding doors with moving corner in operation.

If you would like more information about constructing a moving corner post to your extension and opening up the entire corner of your build, please contact us.

Reader Interactions


  1. Claire says


    We are looking for a Corner Bi-fold Doors which is bottom roller not top hung. We know Origin do these but do you know of any other bifold doors that offer this.


    • Nick Dardalis says

      Hello Claire, yes most offer this from Schuco, Solarlux, Sunflex, Smarts, Aluk and others. If you’d like to get in touch via the contact form we can put you in touch with some suitable suppliers.

  2. Michael says

    Hi Nick,

    Very informative article. Do you know if it’s possible to have an access door on a floating corner system, which is on the shorter side.

    I have an opening of 2.2m x 3.4m and want the access door on the shorter side.


    • Nick Dardalis says

      Hello Michael, yes to the best of my knowledge this is possible. Do get in touch via the contact form if you need any help with a local supplier/installer.
      Kind regards

  3. Aryan Horoufi says

    Good morning

    I require a floating corner bi-fold door with following description

    Height: 2.2m Width 1: 2.4m Width 2: 4.8m

    Please send me a quote with lead time.

    Kindest Regards

    • Nick Dardalis says

      Hello Aryan

      Due to the increasing volume of comments, we are struggling to manage these via the comment forms. Therefore, please can you use our contact form where these are managed and always responded to.
      I can help with your product requirements.

      Kind regards

  4. Rob Thomas says

    Hi Nick
    I’m working with a client at the moment and his Architect has drawn the Bifold doors fixed to inner leaf which means constructing small pier at outer to inner skin (1800 section of doors each side of corner) do you have some info on supporting open corner as at moment it’s drawn with fixed 90X90 post from foundation to steel/lintel, also some idea of cost and supplier, project is Cardiff area.
    Many Thanks.
    Rob Thomas.

    • Nick Dardalis says

      Hello Rob, this is something specific to the build rather than the doors as the post I would imagine is there to support the roof in some way? To the best of my knowledge, no aluminium residential system or the corner post is designed to be load bearing so if you want an open corner, something like a cantilevered roof would take the weight, not the doors.

      hope this helps,
      Kind regards

  5. Agnieszka says

    We’re looking for opened corner bifold doors approx 3.0 m x 4.0 m
    Have you got any local suppliers around my area? I’m in Cheshire.
    What would be the rough cost of supplied and fitted door ?

    Many thanks

    • Nick Dardalis says

      Hello, thanks for your question. The price depends on the brand, colour, any hardware upgrades and any factors specific to your home and installation.

      As a very rough guide, each bifolding door panel with a reasonable system retails for about £1100-1300 per panel, supplied and fitted, including VAT. The corner posts adds about £400-600 on top.

      Origin makes these and are one of the most popular brands of open corner bifolding doors.

      Also worth looking at Schuco Doors, Aluk and Reynaers. SUNFLEX is a good brand too with very slim doors. If you’d like to get in touch via the contact form on our website I can reply to you with some local installers of these.

  6. Jake Moffat says

    We’re currently searching the market for corner bifolds and struggling to identifying anyone other than Origin.

    We are looking for a door height of c. 2700mm with 1 leg spanning 2500mm and the second leg spanning 4100mm.

    Could you advise an approximate ball park figure for a set of Origin doors?

    Also, are there any other manufatures other than Origin that produce corner bifolding doors that would suit the above arrangement?

    Would also be interested in any reccomend local-to-us supplier/isntallers, we are based in Oxfordshire.

    Many thanks

    • Nick Dardalis says

      Hi Jake, most of the other big brands, Schuco, Reynaers, Smart Systems, air, provide a corner bifold solution so you don’t need to be tied to Origin doors – although these are very good bifolds.

      As a rough guide price you can expect to pay about £1100-£1300 per panel for bifold doors with probably about £500 extra for a corner post detail. I can suggest the below that might be able to help you.

      Milena Windows Ltd
      Unit 11
      De Havilland way
      OX29 0YG
      T: 01993 776229

      Stonehouse Corinium (Moreton-in-Marsh Showroom)
      Old Market Way,
      GL56 0AJ
      01285 653 999

      Hope this helps, please don’t hesitate to get in touch if you’ve any questions or need further information.
      Kind regards

  7. Patrick says


    I am interested in a floating corner post system. The opening is 2200mm x 1200 mm, ideally I would like 2 number door at 1100mm and 1 number door at 1200mm.

    Can you provide me with local suppliers for the north west area?

    I look forward to your reply.

    Many thanks


    • Nick Dardalis says

      Hi Patrick.
      Speak to Steve at North West Bifolds they’ve done some great work with corner bifolding doors and should be able to help you.
      0800 587 4068
      North West Bifolds 
      12 Crucian Way
      L12 0AW

      Hope this helps, please don’t hesitate to get in touch if you’ve any questions or need further information. 
      Kind regards

    • Nick Dardalis says

      Hello Jess, if you’d like to get in touch via our contact forms, we will try to assist you with your enquiry.

  8. Rob Best says

    What sort of price would you expect for a corner opening bifold door arrangement measuring 3.3m along one leg and 3.6m on the other.

    • Nick Dardalis says

      Hello Rob, it depends on the number of panels you have as your sizes can accept both three or four panels each side with some systems. A very rough budget would be about £7000 supplied and fitted based upon three doors on one side and four on the other.
      Happy to put you in touch with local suppliers if you can drop us a line using the contact form with your location.

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