Near-full opening
The panels fold together instead of remaining in front of a fixed glass panel. The room can open almost completely to a patio, courtyard or commercial terrace.
USA keyword focus: folding glass wall · bifold patio doors
Schüco aluminum bifold doors
Fold the wall.
Fold the wall.
Open the room.
Compare Schüco AS FD 75 and AS FD 90.HI folding glass wall systems for wide openings, flexible panel stacks and indoor-outdoor living in US residential and commercial architecture.
2 Schüco systemsAlmost 100% opening width3 threshold concepts
Folding Design explainedMore open wall.
More open wall.
More ways to use it.
Unlike a conventional sliding patio door, a bifold glass wall folds multiple hinged panels into a compact stack. This can clear almost the full opening, but it also makes panel layout, overhead support, sill precision and drainage especially important.
Flexible stacking
Panels can fold inward or outward and stack to the left or right. The configuration is tailored to circulation, furniture and exterior clearances.
USA keyword focus: accordion glass doors · folding door systemDaily-use access
An optional side-hung access panel creates a familiar passage door so the complete folding wall does not need to be opened for everyday movement.
USA keyword focus: multi-panel glass doors · pass doorQuick comparisonAS FD 75 or
AS FD 75 or
AS FD 90.HI?
The architectural language is closely related. The main decision is the thermal-performance level required by the building envelope.
Flexible all-rounder
For residential and commercial folding glass doors where slim framing, varied opening patterns and broad threshold choice are the priority.
- 90 mm face width
- Flush frame concept
- Two continuous gasket levels
- Optional side-hung access door
High-insulation option
For energy-conscious exterior folding walls, conditioned enclosures and retrofit concepts that demand improved thermal separation.
- High Insulation system family
- 90 mm face width
- Three threshold types
- Loggia and enclosure potential
See the system in contextFrom closed wall
From closed wall
to open architecture.
Explore how Schüco bifold doors shape a façade, disappear into a compact panel stack and meet the floor with carefully engineered threshold options. Select any image for a closer view.
Select a tile to enlarge the image and inspect the system in detail.
Product detailsTwo ways to fold
Two ways to fold
glass out of the way.
Expand each system for its published planning benefits, design features and the points that must be verified for a US project.
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Folding Design · Flexible Platform
AS FD 75
Slim, flush aluminum bifold doors for residential and commercial openings
AS FD 75 is designed around architectural freedom. Multiple panel sizes, weights, opening directions and threshold concepts allow the folding glass wall to be adapted to homes, restaurants, hospitality spaces and other large openings.
90 mm face widthAlmost 100% opening3 threshold typesEuropean RC 2 option
Explore AS FD 75 ＋
Design and opening
- Flush outer and panel-frame appearance
- Limited visible joints and slim 90 mm face widths
- Folds inward or outward, left or right
- Wide choice of opening and locking layouts
Threshold and access
- Three threshold concepts
- Flat threshold with good rollover capability
- Optional kick-plate covers
- Optional side-hung panel for quick passage
Sealing and security
- Two continuous gasket levels
- Improved air and water performance across opening types
- Magnetic retaining catch supports controlled stacking
- European burglar resistance up to RC 2
Design freedom
- Interior and exterior colors can be selected separately
- Broad panel-size and weight potential
- Residential and commercial applications
- Nearly complete opening to patios and terraces
Best suited to
Custom aluminum bifold patio doors, restaurant folding glass walls and commercial accordion-style openings where maximizing clear width matters more than the fewest possible vertical profiles.
US project check
Verify complete-system U-factor, SHGC, air/water/structural testing, head deflection, sill drainage, safety glass, hardware loads and local forced-entry or impact requirements.
02
Folding Design · High Insulation
AS FD 90.HI
Highly insulated aluminum folding glass walls with slim architectural detailing
AS FD 90.HI combines the nearly full-opening character of a bifold wall with a high-insulation profile platform. Schüco also positions the system for loggia enclosure and renovation concepts where thermal bridges, usable space and façade integration matter.
High Insulation90 mm face widthAlmost 100% openingRetrofit potential
Explore AS FD 90.HI ＋
Thermal concept
- High-insulation aluminum profile platform
- Two continuous gasket levels
- Designed to reduce thermal bridging
- Suitable for conditioned exterior enclosures
Design and movement
- Flush outer and panel frames
- Narrow 90 mm visible face widths
- Folds inward or outward, left or right
- Nearly complete opening width
Threshold and daily use
- Three threshold types
- Flat rollover-friendly sill option
- Optional side-hung access panel
- Magnetic retaining catch for the folded stack
Renovation potential
- Manufacturer highlights serial loggia renovation
- Can enclose balconies to create additional usable space
- Potential integration with photovoltaic façade concepts
- Requires project-specific moisture and ventilation planning
Best suited to
Thermally broken aluminum bifold doors for premium homes, commercial hospitality spaces, four-season enclosures and renovation projects in more demanding climates.
US project check
“High Insulation” is the European system family designation. Require configuration-specific US energy, structural and weather test reports and coordinate condensation risk for the project climate zone.
These are independently written summaries based on Schüco's official architect information. Panel limits, opening layouts, glass, thresholds, hardware and published performance depend on the selected configuration and local market availability.
US folding-wall checklistWide opening.
Wide opening.
Precise coordination.
A bifold wall contains more hinges, panel joints and moving loads than a simple slider. The best result begins with structural, drainage and panel-stack decisions before fabrication.
Head support
Control beam deflection and opening tolerances so the tracks remain aligned across the full width.
Panel configuration
Choose inward or outward folding, left or right stacking and the location of the daily-use access panel.
Sill and drainage
Coordinate finished floor heights, sill pans, waterproofing and accessible-route requirements.
Energy and glass
Set complete-product U-factor, SHGC, safety-glass and condensation targets for the climate zone.
Wind and impact
Verify design pressures, anchors, panel limits and any required hurricane or impact approvals.
Stack and circulation
Reserve space for the folded panels, handles and swing path without conflicting with furniture or egress.
Frequently asked questionsAluminum bifold doors,
Aluminum bifold doors,
answered clearly.
Practical answers for homeowners, architects and builders comparing folding glass walls with large sliding doors.
What is the difference between bifold and sliding glass doors?＋
Bifold panels hinge together and stack at the side, allowing almost the full opening to clear. Sliding doors usually provide fewer vertical frames while closed, but one or more panels remain in front of the opening unless they slide into a pocket.
How do AS FD 75 and AS FD 90.HI differ?＋
Both share a flush-frame concept, slim 90 mm face widths, flexible folding directions and three threshold choices. AS FD 90.HI is the highly insulated option for building envelopes with stronger thermal-performance goals.
Can these folding doors open an entire wall?＋
Schüco describes opening widths of almost 100 percent. The actual clear opening depends on the number of panels, stack location, hinges, hardware and surrounding construction.
Can the system include a normal passage door?＋
Yes. An optional integrated side-hung panel can provide everyday access without folding the complete wall. Its position and swing direction are selected with the panel layout.
Is a flush threshold available?＋
Three threshold types are published, including a flat threshold with good rollover capability. US accessibility and waterproofing requirements still need a project-specific sill detail.
Are the systems hurricane or Florida approved?＋
Do not assume approval from the system name. Impact glazing, anchors, reinforcement, panel layout and Florida Product Approval or Miami-Dade documentation must be verified for the exact fabricated assembly.
Plan the opening before the panelsConsidering an aluminum
Request a Bifold ReviewConsidering an aluminum
folding glass wall?
Send the rough opening, project location, preferred stack direction and performance goals. We will organize the requirements and identify the Schüco AS FD system worth evaluating.