Request A Brochure

Origin OB-72 Bifold

The Origin 0B-72 door system is a cleverly designed, beautifully made and exquisitely finished sliding folding door system that features a unique free-glide running system. Offering sightlines of 72mm and chamfered beading, it provides a more traditional style and given its innate strength, it means that it can accommodate door sets of up to twelve doors in a single configuration, as well as corner bifold set ups.

Our aluminium casement door styles are a popular choice for homeowners because of their classic, chic appearance and ‘A’ energy rating, ensuring your home retains heat, saves you money, and looks good doing it.


Outer Frame Depth 75mm

Sash Depth 59mm

Individual Sash Sightline 72mm

Hingestile Glass to Glass Sightline 154mm

Track Height (not including rebate) 50mm

1-star diamond cylinder as standard

The doors are bottom running and incorporate a unique free
glide carriage assembly, which uses acetal rollers with sealed
stainless steal bearings on an 8mm hardened stainless steel axle

Chamfered bead internally and externally

8-point locking system and includes chamfered 20mm linear
bolts and deep throw 25mm security hooks

Thumbturn option available

Each door comes with 2-5 solid zinc security hinges
depending on height

Finger pull handle option to facilitate operation of even
numbered door sets from the outside


All lead doors greater than 1125mm tall contain the Origin multi-point lock

The Origin multi-point lock offers 8-points of locking and is part of the reason the overall door
system is PAS 24:2016 certified. Additionally, it achieves the Secured by Design accreditation.

In addition to the standard 1-star cylinder, you can upgrade to our 3-Star British Kite Mark Cylinder.


Minimum Sash Size Width  (mm) 325

Minimum Sash Size Height (mm) 400

Maximum Sash Size Width (mm) 1200

Maximum Sash Size Height (mm) 2876

Minimum Sash Size Width (mm) With multi-point lock 325

Minimum Sash Size Height (mm) With multi-point lock 1000

Maximum Sash Size Width (mm) With multi-point lock 1200

Maximum Sash Size Height (mm) With multi-point lock 2876

Minimum Sash Size Width (mm) Even sets going in one direction 700

Minimum Sash Size Height (mm) Even sets going in one direction 1000

Maximum Sash Size Width (mm) Even sets going in one direction 1200

Maximum Sash Size Height (mm) Even sets going in one direction 2876

Relax, Origin has you covered

Our Origin Slimline Aluminium doors are covered by a 20-year manufacturer guarantee, so you can relax knowing that your windows will last for years to come.

Alternative Shades

Our collection of Origin OB-72 doors can come in up to 150 RAL colours and modifiable designs. In order to give it a flawless finish, the highest grade powder coating is applied to the aluminium, with a durable yet smooth finish, it offers the benefit of being highly resilient to the elements.


10 Year Guarantee

All of our double-glazed casement windows are easy to maintain and keep looking like new, partly due to their durability and longevity. We’re so confident in our windows that we offer a ten-year guarantee as standard.

Shop OB-72 Doors with Diamond Windows

When searching for double-glazing specialists in the West Midlands, you needn’t look further than Diamond Windows. We’re well equipped in supplying and installing aluminium doors, so please don’t hesitate to get in touch regarding your door needs. Our expert team will be more than happy to advise you about our OB-72 door range or any other door types.

Other Aluminium Doors

Origin Residential Doors

Origin Residential Aluminium Doors Manufactured with high grade aluminium, the Origin Resi...

View Origin Residential Doors

Origin OI-30 Internal Doors

Origin Interal Door Range OI-30 The Origin OI-30 Internal door range offers a sleeker and ...

View Origin OI-30 Internal Doors

Origin Patio Slider

Origin Patio Slider (OS-29, OS-44 and OS-77) The Origin Patio Slider's classic design lend...

View Origin Patio Slider

Origin OB-72 Bifold

Origin OB-72 Bifold The Origin 0B-72 door system is a cleverly designed, beautifully made ...

View Origin OB-72 Bifold

Origin OB-49 Bifold

Origin OB-49 Bifold The Origin oB-49 Slimline door system sightline of just 49mm means les...

View Origin OB-49 Bifold

Visoglide & Ultraline Sliding Doors

All our sliding doors have a simultaneously timeless and stylish design, which is just one...

View Visoglide & Ultraline Sliding Doors

Visofold Bifolding Patio Doors

All our bifolding doors boast a classic and chic appearance whilst also optimising your ho...

View Visofold Bifolding Patio Doors

Smart Designer Doors

Aluminium Designer Doors Based in Droitwich Spa and covering all local areas, Diamond Wind...

View Smart Designer Doors

“Very pleased with work carried out. Approachable staff very pleasant.”

“The Diamond Window guys installed our new front door and sidescreen and did a fantastic job. They were highly skilled and also very tidy. I would use them again”

Trust our 5-Star Reviews

“Excellent selection, first class advice and outstanding fitting. We wouldn't go anywhere else for double gazing projects.”

“From design to completion , excellent service,friendly and competent tradesmen.”

Contact us
Diamond Windows, Unit 22, Northstreet I.E, Droitwich,West Midlands, WR9 8JB
Company Reg: 5367399
Open Hours
Mon to Fri: 9am to 4.30pm
Sat: 9am-1pm
Sun: By appointment