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Versatile, aesthetically pleasing and practical…
Unlike any other door, our bi-folds provide a completely uninterrupted view when open, and the flexibility to enjoy your indoor and outdoor space as one.
Click on the roundels below to find out more about the shared benefits of all Origin products…
Large expanses of glass, slim profile…
Complementing the rest of the Origin range, our bi-fold doors create a harmonious look with existing door and window systems – right down to the slim profiles. The large expanses of glass sit within an ultra-strong aluminium profile, and you can choose the OB-49 or the OB-72, both with their own individual characteristics to suit different styles.
OB-49
OB-72
Comparing the OB-49 and the OB-72…
The key difference between the OB-49 and the OB-72 are the sightlines they achieve. In the table below, we run into the performance and differences between the two.
OB-49 | OB-72 | |
---|---|---|
Sightline * Sizes denote glass to glass measurements. | OB-49 110mm * | OB-72 154mm * |
Sizes - Height (differs with threshold used) | OB-49 Min. 524mm - Max. 3025mm | OB-72 Min. 524mm - Max. 3025mm |
Sizes - Width | OB-49 Min. 463mm - Max. 27600mm With joining tracks | OB-72 Min. 474mm - Max. 27600mm With joining tracks |
Popular Colours | OB-49 7015M, 7016M, 7021M, 9005M, 9007M, 9910G, 9910M and 9910G/7016M (dual colour) | OB-72 7015M, 7016M, 7021M, 9005M, 9007M, 9910G, 9910M, 9910G/7016M (dual colour), Golden Oak and Natural Oak |
Dual Colour Option | OB-49 | OB-72 |
Midrail Option | OB-49 | OB-72 |
Glazing Bar Option | OB-49 No - But flat trim can be used to create the same effect | OB-72 |
Lead Times Lead times displayed may change without prior notice and will depend on installation availability. | OB-49 & OB-72 Popular colours - Your Lead Time, Not Ours (available in as little as 24-hours) RAL colours - 3 Weeks | |
We are currently working to temporary lead times. See the most up-to-date delivery times | ||
U-Value | OB-49 Up to 1.2W/m2K | OB-72 Up to 1.3W/m2K |
Security |
OB-49 Unique 8-point locking system with 3-Star Diamond cylinder and PAS 24:2016 as standard | OB-72 Unique 8-point locking system and upgradeable to a 3-Star Diamond cylinder and PAS 24:2016 |
Secured By Design | OB-49 | OB-72 |
Guarantee Lengths | OB-49 & OB-72 Standard - Up to 20 years Marine Environment - 10 years (frame) & 5 years (hardware) |
Made for you…
Whether you have a period home, new build, unconventional property or quaint cottage, there’s a bi-fold which will complement your home and allow you to enjoy it in a completely new way.
Created bespoke to ensure you can make the most of your space, Origin bi-folds range from one to eight door sets and individual doors can be manufactured as narrow as 400mm, as wide as 1200mm and as tall as 3000mm. You can choose how they open and close – whether they fold in or out, and how they slide – to meet your exact needs.
- Overall size
System
- Number of doors
Configuration
- One or dual colour
Threshold option
- Accessory finishes
Open in or out
Handle model
A seamless link, your way…
Creating that truly seamless link between your home and outside space is all in the threshold. We recommend a weathered threshold, which can be sunk into the floor. It leaves a minimal lip but provides a protective weathertight seal.
Non-weathered options offer a level floor finish and create a seamless transition between the inside and out. Non-weathered options are largely recommended for internal usage.
Opt for a classic Georgian look…
When you think of bi-fold doors, you may envision wide expanses of glass with light flooding in without much variation, but it is possible to personalise your bi-folds to ensure they truly complement your home and your style.
Taking a traditional design and making it cool and contemporary, you can opt for Georgian bars. By placing bars vertically, horizontally or both, our crittall-style or steel-framed doors create a classic style and an extra sense of cosiness while still allowing for vast expanses of light.
Doors that glide effortlessly…
An intelligently engineered short wheelbase carriage assembly with four wheels, manufactured from a high-grade acetal, guides the doors along the track seamlessly, enabling them to open and close with ease. It’s quality you can see, feel and admire.


Handled with care…
Get the right finishing touch for your Origin bi-fold door
Deluxe handle collection
Our deluxe handles offer an elegant look, coupled with a luxurious feel






Premium stainless-steel handles
Stainless steel handle range which can also be colour coded











Handle your door your way…
Our aluminium lever handle comes as standard on the OB-72 and is available in three colour options



Configurations…
Choosing your Origin Door has never been easier. If you know your rough opening size, find the nearest opening measurement in the table below and scan down the column to view your possible door options.

Configurations are available up to twelve doors. Above sizes are for guidance only and subject to glass specification
Optimum door sizesWide door leaf sizesNarrow door leaf sizes
Explore our door configurations…
Explore a list of recommended and popular configurations for our Bi-Fold Doors































Here at Origin, our vision is to transform the way families enjoy their home - from inside to out…
Explore our case studies
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Abi and her family completely renovated this stunning countryside home with Origin, creating a wonderful home to be enjoyed all year round.
Read case studyOrigin – the perfect choice for a range of high-spec developments by Cala Homes
Residents of a new Cala Homes development in rural Scotland will now get to experience all the benefits of an Origin Home
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After a couple of years of living in their home, Denise and her family were ready to embark on a wonderful extension that would provide them with more living space, as well as offer new exquisite touches to their home.
Read case studyThe Singh’s brightened up their home and workspace with Origin
After living in their property for 2 and a half years, the Singh’s made the decision to renovate their bungalow and create a whole new living space.
Read case studyInviting the great outdoors in with Origin
The Collins’ lived in their property for 7 years before taking the decision to extend and completely refurbish their home with a suite of Origin products.
Read case studyThe North’s created a match made in heaven after installing a 3 door set of OB-72 Corner Bi-folding Doors and OW-80 Casement Windows
Buying a property is one thing, but creating a forever home is a completely different dream, and that is exactly what the North’s were looking to achieve when they came to Origin.
Read case studyGeorgian Bar OB-49 Bi-folds Complete This Couple's Stylish Home
See how this couple used Georgian Bar OB-49 doors to complete their stylish home.
Read case studyThe Origin Slimline OB-49 Bi-fold Door helps fill this home with natural light
This case study shows how the Origin Slimline OB-49 Bi-folding Door was used to replace old UPVC doors, which has now flooded the Buckinghamshire home with natural light.
Read case studyOrigin OB-72 Bi-fold Doors, OW-70 Windows and OS-20 Sliding Doors Complete this Cosy Family Home
A lovely family home has recently been completed with Origin Bi-Folding Doors, OS-20 Sliding Doors and a range of OW-80 Windows.
Read case studyOrigin Was The Perfect Solution For This Glaswegian New Build
The OB-72 was the perfect door solution for this new build in Scotland.
Read case study