Minimal sight lines, maximum security

The Exact FD85® Bifold Door is a precision engineered aluminium bifold door system featuring minimal sight lines and maximum security. At 105mm, the sight lines of the FD85® are some of the slimmest available, maximising your view and the natural light into your property.

With its Quad-bolt™ security system, the FD85® bifold door system incorporates the latest generation technology to protect you and your home, giving you peace of mind. For a brand-new home or new build extension, the FD85® has been tested to the latest security standards and attained PAS24:2016, ensuring you comply with part Q of the building regulations for new build dwellings.

Superior glazing and thermal efficiency

With its unique design, the FD85® panels are made to your specific measurements and available up to 1.35m wide. Using this bifold door system, you can achieve a 3 panel bifold door spanning 4.05m, giving you less framework and more glazing for a superior view.

In line with the cutting-edge design, this door system offers thermal efficiency with u values as low as 1.5Wm2K, giving you industry leading performance for your bifold doors. As standard we fit toughened, argon-filled double-glazing with Warm Edge Spacer Bar to achieve optimal temperature control and performance in your Bifold Doors. For enhanced structural integrity, laminated glass is available.

Customise your FD85® Bifold Doors

Available in a choice of 4 polyester powder coated aluminium frame colours as standard, the FD85® is also available in a selection of specialist finishes from anodised, grains and bespoke colours. If you are looking for a specialist finish, contact us today to discuss the options available.

If you’re looking for inspiration for your glazing project, click here to see our latest case studies.


To get your project underway, book an Initial Project Consultation. Discuss your project with our specialist team and find out how working with Exact could be the right solution for your glazing needs

Click here to make an appointment.

Product Features

  • Inward or outward opening
  • Ultra-modern, minimalist design
  • Manufactured using high grade components
  • U-Values as low as 1.5Wm2K
  • Polyester powder coated aluminium frame
  • Quad-bolt™ security system
  • Up to 1.35m panel width
  • Up to 3.0m height
  • 105mm sightlines
  • Anti-lift protection mechanism for superior home security

Colour Options

Anthracite Grey RAL7016M
Black RAL9005M
White RAL9010M
Slate Grey RAL7015M
Bespoke RAL


How quickly do you deliver and install bifold doors?

This will be based on the product type and size you require. Please call us on 01428 748255 with details of your project and we will be able to advise.

Are bifold doors heavy to open and close?

No, all of our bifold doors feature superior gearing systems giving you an effortless movement. There is a specific way to open and close bifold doors which ensures the longevity of your doors. Your project manager will take you through this and full aftercare at installation.

Is there a maximum number of panels for bifold doors?

6 is the common maximum panel configuration for bifold doors. If you are looking to achieve something larger, please contact us to talk through your project.



If you think the Exact FD85® Bifold Door is the solution for you, click the button below to request a call back, or call us on 01428 748255.

To see the Exact FD85® Bifold Door in our showroom, make an appointment here.



If you are looking to enhance the natural light and space within your property, our case studies are an excellent source of information and inspiration to discover how our exquisite, bespoke glazing solutions have transformed our client’s homes.



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