Bi-Fold Door

Black aluminum bifold doors opening to garden terrace

A bi-fold door is a multi-panel door system that folds open along a track, stacking neatly to one or both sides. Each panel is hinged together, allowing the door to fold in a concertina style. Operated smoothly with a bottom or top track and guided by rollers, bi-fold doors offer full-width openings—making them ideal for maximizing space and light.

Black aluminum bifold doors opening to garden terrace

Compact Design

Wide Opening Spans

Acoustic Performance

thermal breaks

Sealing strips

Finishes

New Bi-Fold Door Designs

Frosted glass closet bifold door with black frame
Closet Bifold​ Door
Modern commercial bifold door opening to outdoor area
Commercial Bifold​ Door
White exterior bifold door opening to patio kitchen view
Exterior Bifold​ Door
Bi fold French doors with glass panels opened inward
french bifold door
Modern internal bifold doors with black frames
Internal bifold door
Louvered white bifold door with sunlight filtering in
Louvered Bifold Door

Bi-fold Door Series

Thermally Insulated:

Detailed bifold door frame cross section with measurements
Bifold door corner section with glass and aluminum frame
Primary product designatorClass CW-PG40: Size Tested 2600mm × 2100mm (102.36in. x 82.68in.)-Type FLD
Positive Design Pressure Pa (psf)1920 (40.10)
Negative Design Pressure Pa (-psf)-1920 (-40.10)
Water Penetration Resistance Test Pressure Pa (-psf)290 Pa (6.06)
Can. Air Infiltration / ExfiltrationA3 Level
Glass6mm double lowE+12Ar+6mm, double lowE+12Ar+6mm clear glass
U-Factor (W/m2-K)SHGCVTAir Infiltration (L/S-m2)Air Exfiltration (L/S- m2)ER
1.930.250.40.030.0412

Non-Insulated:

Technical drawing of a bifold door frame with dimension
Aluminum bifold door frame with insulated glass panel

Aluminum

Bifold Door

Visible Surface

Section Profile Thickness

Size Range

Glass

Thickness

Maximum

Load-Bearing

50 Series

Glass Sash| Flyscreen Sash

Wall Thickness

Frame Thickness

Width|Height(mm)

5+9+5

60kg

61.5mm

2.0mm

50mm

800|2500

Certificates We Got

NPRC Logo
Logo Certificate
Energy Star Logo
Australian Standard Logo
ISO Logo
CE Logo
CNAS Logo
American Architectural Manufacturers Association Logo
Performance label for bi fold glass door energy use
Energy rating label for openable sliding glass door

Custom Options for Your Bi-fold Door

Panel Configuration

Opening Direction

Material Options

Glass Types

Color Finishes

Hardware Styles

Threshold Styles

Weather Sealing

Size Customization

Start Customizing Now

Bi-fold Door Leaves

Two panel bi fold door with fixed panel
Two panel bi fold door with fixed panel
Three panel bi fold door with fixed end panel
Three panel bi fold door with fixed end panel
Three panel bi fold door with center opening
Three panel bi fold door with center opening
Four panel bi fold door with dual folding sides
Four panel bi fold door with dual folding sides
Four panel bi fold door with asymmetric opening
Four panel bi fold door with asymmetric opening
Five panel bi fold door with even leaf split
Five panel bi fold door with even leaf split
Five panel bi fold door with end folding section
Five panel bi fold door with end folding section
Four panel bi fold door with side fixed panel
Four panel bi fold door with side fixed panel

Bi-Fold Door Accessories

Upgrade your bi-fold door with premium accessories, including durable hinges, sleek handles, secure lock seats, and more for enhanced performance and longevity.

Ideal Applications

Patio bi fold doors opening to garden view
Patios and Balconies
Bi fold door entrance for modern restaurant facade
Restaurants and Cafes
Retail storefront with large bi fold glass doors
Retail Storefronts
Frosted glass bi fold doors for office partition
Office Partitions

How We Test Bi-fold Doors?

To test bi-fold doors, check the alignment of panels and track smoothness by fully opening and closing them. Inspect seals for air or water leaks and verify locking mechanisms function securely.

Ensure all hardware is tight and stable. A proper test confirms performance, safety, and ease of use for long-term reliability.

"Wow" From Our Cute Customers

Bi-Fold vs Sliding Doors

FeatureBi-Fold DoorsSliding Doors
Space UsageFolds fully to the side, opens entire wallOne panel slides behind another, partial opening
AestheticsModern and sleek, full outdoor viewClean and minimalist, with wider glass panels
CostGenerally higher due to complex hardwareUsually more budget-friendly
Ease of AccessWide, unobstructed accessNarrower access unless multi-panel
OpeningUp to 90–100% clear openingTypically 50% of the total opening width
SecurityMulti-point locks; very secureSecure with fewer locking points
Energy EfficiencyHigh with thermal breaks and glazingEfficient but may have more air gaps
MaintenanceMore moving parts, needs regular careSimpler mechanics, easier to maintain

FAQs About Bi-Fold Doors

What is a bi‑fold door?

A bi‑fold door is a multi-panel door system that folds open accordion-style along a track, stacking to either side. The panels are connected by hinges with rollers, creating wide, uninterrupted openings for easy indoor–outdoor living.

Yes—modern bi‑fold systems include multi-point locking mechanisms and reinforced frames to resist forced entry. Quality models also allow the use of laminated or toughened glass for enhanced security.

Absolutely. Bi‑fold doors can be configured with 2 to 8 panels, stacking to one or both sides. You can select inward or outward folding based on your design and space layout.

Thanks to thermally broken aluminum frames and double or triple-glazed options, bi‑fold doors offer excellent insulation with U-values as low as 0.27. Proper installation ensures they are airtight and energy-saving.

No, maintenance is minimal: clean the tracks regularly, lubricate rollers annually, and check seals for wear. High-quality aluminum frames remain durable with simple care over time.

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