Bi-Fold Doors
Luxury redefined. Slim, secure, and engineered for light-filled living.
Made for the Modern Home
At Haris Architectural Systems, our aluminium bi-folding doors are designed for contemporary living. With ultra-slim frames and expansive panes, they open up your space — bringing the outdoors in while offering outstanding energy performance and security.
Every set is made from marine-grade aluminium, engineered with precision, and built to perform in the British climate.
Key Features
- ✓ Sightlines of just 107mm — maximum glass, minimal frame
- ✓ U-values as low as 1.1 W/m²K (with triple glazing)
- ✓ Industry-leading sash sizes: up to 1200mm x 3000mm
- ✓ Smooth operation with 120kg heavy-duty rollers
- ✓ Secure to PAS24:2022 standards
- ✓ Clip-in bead design for faster installation
- ✓ Up to 14 panels (7 each way), opening in or out
- ✓ Colour-matched with your HAS windows, sliders and roof lights
Finishes & Configuration Options
Our bifolds, French and single doors are available in any RAL colour upon request. The standard colours that we have in stock are Grey 7016 (Matte), Black 9005 (Matte), White 9016 (Gloss), Grey 7016 (Matte) on White 9016 (Gloss), Black 9005 (Matte) on White 9016 (Gloss), Textured Grey 7016 and Mill Finish.
Technical Summary
• Frame depth: 73mm
• Glazing options: Up to 44mm
• Weather tested to BS6375
• Air class: Class 4 (600 Pa)
• Water class: 9A (600 Pa)
• Wind class: A3 (1200 Pa)