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slim sight lines
Thin 29mm mullion
Three moving panels
Flexible panels
minimalist appearance
Sought after slim style


The Origin OS-29 sliding door provides the slimmest possible sightlines in an inline sliding door design.  Classic or modern styling combined with the latest in aluminium design and technology.

Get the sought after slimline sliding door look with an impressive sliding door mullion of only 29mm, one of the thinnest possible on the market.  Better views, more light and a more minimal look to your new sliding doors.  Architectural quality door handles add distinctive style.  Advanced hardware, locks, glass and seals provide the security and protection you expect.

A cutting-edge door and one of the newest on the market from the best of British, Origin brand name.   Every Origin OS-29 sliding door comes designed as the perfect replacement for any dated slider or French doors.  At the same time, they set off a new extension with true style.

Technology & Design

Origin products come with premium-grade insulated aluminium.  Then they’re protected and coloured with a marine-grade powder coated finish.  Low maintenance, easy to keep clean and promising great looks for years to come. All it needs is a routine clean with a sponge and mild soapy solution.

True craftsmanship and meticulous build quality.  Just some of the great features behind every Origin slider.  Sophisticated hidden rollers deliver a smooth and quiet slide action and effortless operation every time. They’re even self-levelling, adjusting as required.

The handles use come in marine-grade 316L stainless steel with equally advanced fixings. These materials are built to withstand even coastal environments.

Origin OS-29 Sliding Door

Product Details

There’s no better sliding door for affordability with the desirable minimal look to the mullions.  Two or three panel designs instantly look slimmer thanks to the impossibly thin profile.

  • There’s no slimmer patio door in this design. 29mm middle mullion
  • 20-year guarantee on the running gear, gaskets, frames, locks, levers and seals.
  • Suitable for large doors up to 6.6m wide and smaller areas down to 1.8m wide.
  • Available with double or triple tracks and in two or three panel designs.
  • Designer door handles for effortless use by the whole family.
  • Choose from two or three panels with a choice of fixed or all panels sliding.

Origin OS-29 Sliding Door


Of course, today’s modern interiors call for on-trend colours such as grey, black and similar popular shades. All of these are available as well as a choice of over 150 other colours.  Perfect for homes old or new and designs of any type.

Every Origin OS-29 sliding door comes with extensive options for the glass.  Enhanced security, solar control and even acoustic options. Triple glazing offers you even higher levels of insulation.


Security & Performance

The Origin OS-29 sliding door meets current Building Regulations for thermal performance. U-Values as low as 1.2 Wm2K for our triple glazed product. 

Made to last and sealed to perfection, your new sliding door comes with the latest design, protecting your home and possessions.  

Multi-point locks as standard providing excellent security and doors provide peace of mind that locked, your home is secure.

Product Features


Your new OS-29 sliding patio door comes with latest-generation hardware for a smooth slide action as well as valuable safety features for you and your family. Every component is designed for the product and made by standout industry manufacturers.

The sophisticated door rollers ensure a light and smooth slide action as well as keeping the door level as it slides open and shut. The tops of the door are engineered to sit tight within the frame for weather resistance while making open and closing light. The door handles have one of the highest grades of stainless steel designed for extreme coastal environments. And the door locks come from high-grade metals, extensively cycle tested for durability, reliability and safety. Even the door seals at every critical point are engineered for optimum weather performance by helping to keep your door sealed and your home warm and dry.



The glass units in your new doors come from the best glass processors and manufacturers. Standard glazing comprises toughened safety glass, having a soft-coat low-emissivity coating, warm edge spacer bars and argon gas fill. 

We offer all manner of glass upgrade options to suit your specific needs and the location of your doors. Integral blinds housed between the glass offer enhanced privacy and shade while also improving the thermal performance of the glass. Laminated glass provides an extra layer of security and there is even glass for acoustics, to prevent fading furniture and fabrics as well as solar control or reflective glass.

Origin OS-29 Sliding Door


Origin sliding doors come with luxurious powder-coated finishes, professionally applied by certified and approved applicators.

Available at faster lead times is a range of stock colours. Or for a slightly longer wait a substantial range of special finishes.

Choose Grey 7016M, Black 9005M, Lighter Grey 7015M and White 9910G as standard

colours available with Dutemänn FD85 Bifolding Doors

Energy Efficiency

Whether you use these doors to replace your old patio doors or for a new extension, they come as an insulated product, exceeding the requirements of current Building Regulations for thermal performance and door energy ratings.

Some of the images on our website are indicative images illustrating how products may look. Please contact us for full product details and specifications.

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