Premium Timber Bi Folding Windows

Our timber bifold windows offer stylish, high-quality solutions for those who prefer the aesthetics and warmth of timber. Our bespoke timber windows feature traditional mortice and tenon joints in a variety of timber species. We only use the best quality hardware from market leaders Brio to give incredibly smooth operation across our entire range of products. With turnarounds as little as 4 weeks we are a great choice for your timber project.

Get in touch now to discuss your project on 01633  740631 or email us at

Get In Touch Today For A Free Quote

Why Use Our Timber Products

Industry Leading Hardware Systems

10 Year Guarantee

Easy Installation

Timber Bi Fold Windows With Brio Hardware

  • 316 grade stainless steel ball bearing hardware with 10 year warrantee even in coastal locations

  • Panels up to 1.0m wide by 1.9m high as standard 


  • Hardware available as satin or polished stainless steel. PVD Brass and PVD Black available in the larger hardware option


Mazuli Casement Profile
Brio Logo

Partnering With The Best

Known for being one of the leading manufacturers of Architectural hardware worldwide.

Our Standard Finishes

Each system is pre finished leaving little to do on site after installation.

The paint systems we use are carefully selected to increase the lifespan of our products and make maintenance easier.

Painted Systems

Each system undergoes the following process to ensure a perfect finish that will last.

  • 3* Wood Preserver (All timbers are preservered to reduce the risk or blue funghi and insect attack)
  • Knotting Solution (All knots and resinous timbers are treated to prevent bleed through)
  • End Grain Sealer (All end grain sections and weak spots are sealed to reduce moisture intake in these areas)
  • Primer (all timbers are primed to aid paint adhesion and prevent tannin bleed from certain oily timbers)
  • Undercoat (Flexible oil based undercoat by Johnstones is applied)
  • Top Coat (Flexible top coats by Johnstones are applied, available in Satin, Gloss and Eggshell.

All our products are hand painted to ensure a finish which not only looks traditional but can be reapplied time and time again as required. We do not spray any of our products as we find that spray finishes give a plastic look and detract from the natural timber look.

Varnished & Stained Systems

Each system undergoes the following coating process

  • 3* Wood Preserver (All timbers are preservered to reduce the risk or blue funghi and insect attack)
  • End Grain Sealer. (End grains are coated to reduce moisture intake)
  • Base Coat (A base coat is applied if required, based on timber and coating used)
  • Top Coat (2 coats are applied to provide the neccessary weathering)

Most varnishes and stains will require recoating after the first year of weathering. This is perfectly normal and usually requires a quick coat on the outside of the system only.



Take A Look At The Specifications

Technical Details

Maximum panel height: 1900mm 
Maximum width per panel: 1000mm

Choice of Locking mechanisms. Flush Bolt or Shoot Bolt options on bi folding pairs.

Traditional fastener and stay or multipoint on end sash (odd number of sashes required)
Ultra-smooth top hung design
Every conceivable configuration achievable up to a maximum 6 Left, 6 Right.

Colour Options

Our products are hand painted and can be coated in a colour or finish of choice.

As standard we use the Johnstones Flexible paint system for opaque systems  and Osmo UV Protection Oil for stained/varnished systems. This is purely due to our experience as it provides the neccessary protection from weathering. However if you need us to match existing joinery you have then we are happy to use a paint system of your choice.

Brio Hardware

Brio offer 316 Stainless Steel hardware suitable for panels upto 35kg. The 316 is a marine grade stainless steel which is guaranteed for 10 years even in coastal locations. 

The stainless ball bearing hinges ensure a smooth operation throughout the lifespan of the product. 

Brio offer hardware in 2 finishes. Satin Stainless, Polished Stainless. PVD Black and PVD Brass are available in the larger 4″ hardware 

Head tracks and bottom guides are anodised Aluminium

Our solid timber sill utilises our unique 3d printed drain to remove water from the bottom guide.


Our most popular panel opening configurations include:


 Other configurations are available with a maximum of 6 panels folding each way to give 12 panels with a span of 12m and an overall frame of 12.2m

Sill Options

Our timber sills can be in any hardwood of your choice. 

Our timber sills are bespoke made and can have a projection to suit your requirements. Typical projections are 60mm to 90mm.

Threshold Options

Timber sills are 45mm high with a 22mm stop to give a threshold of 67mm high.

The stops can be reduced to 18mm to give a lower threshold if required

Addons and Trickle Vents

We offer trickle vents on all our systems. These are usually situated in the head section of the frame and require an internal vent only. The external canopy is omitted due to the vent exiting into the head track 

Bi Folding Window
Bi Folding Window

Glazed and Unglazed Options

Glazed Systems

The glass we supply can be specified to any configuration. Standard sash thicknesses allow for a 22mm thick unit which can be increased to 28mm if sashes are upgraded to 68mm thick.

As U values are a huge factor in specifying glass options, we are happy to offer any Pilkington glass range from ‘Low e’ K glass to Optitherm to meet the center payne U value you require for your project.

All our glass is safety toughened as standard but we also offer laminated units for added security. These are typically a 6.4mm laminated outer payne with a 4mm toughened inner payne to help keep intruders out.

Unglazed Systems

ALL our bifolds are prepared for a glass thickness 22mm overall as standard. If you are purchasing integral blinds elsewhere to install into our bifolds then please state this when ordering or let us order them for you.

If you are sourcing your own glass then please ensure the glazing meets the required Building Regulations. 

Windows must be toughened or laminated safety glass if the bottom of the glass unit is within 800mm of the finished floor level or if adjoined to a door. If you are unsure please check before ordering glass.


Window Delivery Information and Lead Times

Once you place an order we will confirm a production slot and delivery time frame. All our window systems are delivered to you unassembled and require reassembly on site unless weights and sizes allow us to provide them fully assembled.
Bi Folding Superstore pride ourselves on having a fully transparent ordering routine and this means a smooth process throughout.

Lead times are approx 4 weeks but can be 8 -10 weeks during busy periods and for special orders

Want to discuss your project?

Call now on 01633 740631 or email us to start your project the right way