Bifold Doors
Schüco ASS 70 FD Bifold Doors
About Schüco ASS 70 FD Bifold Doors
With the thermally insulated Schüco ASS 70 FD folding door, a complete glass wall can be opened almost fully. The door leaves fold with minimal force, inward or outward, and slide to the right, the left or both. They roll almost silently on roller carriers and are guided at the top and bottom, so the stack stays secure and quiet in use. Folded, the leaves take up a small space at the side of the opening, giving a clear connection between inside and out. The system has rounded profile corners, face widths from 60mm and mitre-cut frames, and is tested to PAS 24. We make it to measure and install across London and the South East.
The ASS 70 FD suits openings where the stack needs to go to either side, or split between both, and it can also be used as balcony glazing. Vents can be up to 3 m², or up to 3.0m high at 1.2m wide, and U-values go as low as 1.3 W/(m²K), within the 1.4 W/m²K that Approved Document L sets for replacement doors in existing homes in England. For flush frames and a threshold down to 4mm, compare the Schüco AS FD 75/90.HI; for a corner with no post, Schüco cornerless bifold doors. We supply and fit the ASS 70 FD as a Schüco Residential Partner, or supply it only to installers and builders.
How much do bifold doors cost? Our bifold door price guide sets out supplied-and-fitted guide prices for every panel count, from 2 to 7 panels.
Last reviewed 2 November 2026
Want a price for your opening?
Every set is made to measure, so the only way to a real number is your sizes. Free survey and quotation, no obligation.
Key features
- Rounded profile corners with narrow face widths from 60mm
- Lockable one-hand handles with burglar resistance up to WK2
- Wide choice of colours, including different colours inside and outside
- Outer and vent frames mitre cut on all corners
- Thermal insulation and sound reduction options
- Can also be used as balcony glazing
- Tested to PAS 24
Specifications
Frequently asked questions
Common questions about Schüco ASS 70 FD Bifold Doors.
How does the Schüco ASS 70 FD open?
The leaves fold inward or outward and slide to the right, the left or both, running on roller carriers guided at the top and bottom.
How large can the leaves be?
Vents can be up to 3 m², or up to 3.0m high at 1.2m wide.
Is the ASS 70 FD energy efficient?
It is thermally insulated, with U-values as low as 1.3 W/(m²K), and can take triple glazing.
How secure is the Schüco ASS 70 FD?
It is tested to PAS 24, and lockable one-hand handles give burglar resistance up to WK2.
Can the ASS 70 FD be used on a balcony?
Yes. It can also be used as balcony glazing.
How do I get a quote?
Quotes are free. Send your opening sizes through the contact form or call 0800 999 5575. Supply only is available for installers and builders.
Interested in Schüco ASS 70 FD Bifold Doors?
Get a free, no-obligation quote tailored to your project.
Guides
References
