A stone building with a Woodline bifold door.

Woodline Bi-folding Door

With its vast range of finishes, the Solarlux Woodline bi-folding door is the perfect choice for those who want multi-laminated, high-quality wooden folding door.

A Warm Yet Modern Living Space

The Solarlux Woodline bi-folding door features an aluminium sub-frame for optimal stability that is clad with solid wood sections internally and externally.

The Woodline’s 86mm deep frame can be specified as double or triple glazed. It features a slender sighline of just 143mm at the panel joint even when using large panels ensuring maximum transparency when the door is closed.

Solarlux also offer a “composite” alternative, the Combiline, featuring timber on the inside with aluminium on the outside.

Technology at a glance

Burglar Resistance




Air Permeability


Water Tightness

Up to 7A

Thermal Transmission Coefficient

Uw ≥ 1.0 W/m²K

Sound Reduction Index

R’w up to 42 dB

System Description

Woodline Bi-folding Door Profile Systems

  • Thermally insulated wooden window system with a building depth of 86 mm in the panel profile
  • Multi-laminated, high-quality wooden beams made using selected rifts and half-rifts
  • Bottom-running; minimal load support required in case of falls
  • Edged (R2) wooden panel frame profiles
  • Single-piece, multi-functional bionicTURTLE® break profile force-fitted flush into wood panel
  • The panels are manufactured with a form-fitted corner joint. A rounded collet fits exactly into the slot on the counter-piece, and an additional screw connection makes for an even sturdier panel joint.
  • Controlled drainage
  • Running and guide rails built into the system
  • Separate levels for runners and locks
  • Accessible and living-space & floor tracks also available
  • Built-in, concealed cable routing

Door Features

  • The sub-frame comprises a static aluminium structure (mitre joint) that is faced with solid-wood beams across its whole area, inside and out
  • Slim sight line of 143 mm in panel joint

Sealing System

  • The seal encompasses two all-round sealing levels with constant gap sizes and even seal pressure between the panels
  • Sealing levels not interrupted by fittings
  • Sheathed foam seals with optimum sliding properties

Design Variants

  • Panels fold either inwards or outwards, to either left or right
  • Left and right sliding panel pairs also available
  • Floor track designs without rebates in compliance with German standard DIN 18040 on “Accessible construction”
  • Floor tracks available as minimal floor tracks without height offset


  • No protruding running tracks or guide rails
  • Fittings with one-hand operation in the break profile built into the wooden beam
  • With optional built-in TwinX® concealed panel centring mechanism for high wind loads
  • System hinges also suitable for heavy panel weights
  • System adjustment mechanism built into sub-frame rebate, outside the sealing level
  • The specially shaped stainless-steel running track with tapered track roller allows the use of unguided carriages
  • Stainless steel track roller ball bearing runner mechanism: stainless steel track rollers and stainless steel bearing surfaces for quiet running and very long service life
  • Easy-running, low-wear carriage fitted with double-row deep-groove ball bearings and built-in anti-prying guard
  • Sliding lock or optional lock-in-place panel for controlled ventilation
  • High-quality, stainless-steel Solarlux designer handles
  • Lock-in-place, one-hand operation thanks to special gears with stroke of 24 mm
  • Passdoor available with latch-key-activated, multi-point lock and profile cylinder
  • Secure hinge pins
  • Secure cleaning pin “Easy Clean” with convenient unlocking mechanism and misuse prevention system to allow cleaning of the outsides of the panels on inwards-opening bi-folding door elements
  • Thanks to its defined locking points, this cleaning pin can be used for both paired and unpaired bi-folding doors
  • Lock monitoring system with reed contacts and concealed cable routing
  • Patented “Comfort Snap” panel catch
  • Optional load-transferring plates with centring grooves and sealing cushions for mounting the sub-frame profiles and floor track
  • Additional mounting screw covers in frame rebate


  • Sustainable manufacturing
  • FSC® (Forest Stewardship Council), COC (Chain Of Custody)
  • PEFC (Programme for the Endorsement of Forest Certification Schemes)
  • Certified disposal in accordance with DIN EN ISO 14001:2009


  • In-house production control
  • Tested in accordance with DIN EN 1090, design class EXC 1 & EXC 2, certified in accordance with DIN ISO 9001

Find out more about the Woodline bi-folding door on the Solarlux website here.

Solarlux World Of Wood Finishes

In addition to our painted options, Solarlux Woodline and Combiline products are available in a wide range of varnish shades and oiled finishes. Both options are available in varying shades of gloss, at no additional cost.

Spruce Afromosia Finish Image

Spruce Afromosia

Spruce Teak Finish Image

Spruce Teak

Spruce Pine Finish Image

Spruce Pine

Spruce Pure Pine Finish Image

Spruce Pure Pine

Spruce Cherry Tree Finish Image

Spruce Cherry Tree

Spruce Dark Teak Finish Image

Spruce Dark Teak

Spruce Nussbaum Finish Image

Spruce Nussbaum

Spruce Afzelia Finish Image

Spruce Afzelia

Spruce Bright Oak Finish Image

Spruce Bright Oak

Spruce Noble Brown Finish Image

Spruce Noble Brown

Spruce Dark Palisander Finish Image

Spruce Dark Palisander

Spruce Clear Finish Image

Spruce Clear

Oak Clear Finish Image

Oak Clear

Spruce Natural Finish Image

Spruce Natural

Oak Natural Finish Image

Oak Natural

Spruce Clear Dull Matt Finish Image

Spruce Clear Dull Matt

Oak Clear Dull Matt Finish Image

Oak Clear Dull Matt

Spruce Clear Matt Finish Image

Spruce Clear Matt

Oak Clear Matt Finish Image

Oak Clear Matt

Spruce Milk White Finish Image

Spruce Milk White

Spruce Scandinavian Grey Finish Image

Spruce Scandinavian Grey

Spruce Milano Grey Finish Image

Spruce Milano Grey

Spruce Nutshell Finish Image

Spruce Nutshell

Spruce Italian Teak Finish Image

Spruce Italian Teak

Spruce Walnut Finish Image

Spruce Walnut

Spruce Nordic Grey Finish Image

Spruce Nordic Grey

Spruce Milano Grey 50% Finish Image

Spruce Milano Grey 50%

Spruce Nordic Grey 50% Finish Image

Spruce Nordic Grey 50%

Spruce Clear Oiled Finish Image

Spruce Clear Oiled

Larch Clear Oiled Finish Image

Larch Clear Oiled

Oak Clear Oiled Finish Image

Oak Clear Oiled

Spruce Toffee Finish Image

Spruce Toffee

Spruce Light Grey Finish Image

Spruce Light Grey

Spruce Stone Grey Finish Image

Spruce Stone Grey

Spruce Dark Peat Finish Image

Spruce Dark Peat

Pine Walnut Glossy Finish Image

Pine Walnut Glossy

Pine Walnut Silk Matt Finish Image

Pine Walnut Silk Matt

Meranti Walnut Glossy Finish Image

Meranti Walnut Glossy

Meranti Walnut Silk Matt Finish Image

Meranti Walnut Silk Matt

What Our Clients Say

See All Testimonials

Lance, Farnham

I had 18 windows and doors replaced with Rationel and Westcott Construction were the recommended supplier. Josie was very helpful while we got the exact specification sorted out, and was always quick to reply on email. The fitters were very friendly and helpful, and the attention to detail was excellent. Everyone turned up when they said they would and completed the job on time. This is a very well organised company who it has been a pleasure to work with.

Alistair, Haywards Heath

What makes this company stand out is outstanding customer service from start to finish. I had VELFAC 200 Energy windows installed for a new self-build so attention to detail was paramount. Composite Windows came to site multiple times before, during and after fitting to ensure the product was perfect. When one of the larger units was difficult to close, they sent their engineers to adjust it but still determined it wasn’t perfect, so replaced the entire unit. Its the service we all would hope companies strive to deliver but we typically settle for less. Composite windows really did deliver on my project. They have a great team in the office and at site. I would definitely use them in subsequent projects.

Lars, Isle of Wight

Choosing Westcott as the installer for our VELFAC windows has been one of the best decisions in our whole build process. Always professional, with attention to detail, friendly, working to a very high standard and providing an outstanding customer service.

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