PATIO FOLDING DOORS
Bespoke multi-panel bi-fold systems engineered to completely fold away, creating a flawless, unobstructed transition between your interior and outdoor living spaces
Open Living Spaces
Multiple folding panels create a wide, open connection between indoor and outdoor spaces
Strength and Durability
Fusion-welded frames and interlock sash construction provide added strength and stability
Weather Performance
Compression seal technology improves insulation and protection against air and water infiltration
Bifold Patio Doors for Canadian Homes
At Permanent Windows Solutions, we engineer elite multi-panel concertina bifold doors as a high-luxury, modern alternative to traditional French and wide-format sliding patio doors. Meticulously designed to establish a breathtaking, open-concept transition, these systems sweep open structural spans up to 13 ft (4 m) wide while delivering outstanding multi-layer sound attenuation and advanced thermal insulation for absolute year-round interior comfort. Our structural folding doors can be custom-fabricated in highly versatile inswing or outswing configurations—allowing the glass panels to stack neatly inside or completely outside your living space to seamlessly accommodate your architectural layout and design preferences.
Complete Structural Opening
Engineered with precision-guided roller tracks that fold all panels completely flat against the frame, instantly unlocking $100\%$ of your indoor-outdoor living transition
Elite Structural Profiles
Fabricated using heavy-duty, multi-chambered profiles with thick steel reinforcement walls to manage extreme multi-panel weight loads and structural movements
Advanced Thermal Defense
Outfitted with continuous dual-compression weather-stripping seals and high-efficiency triple glazing to completely stop cold-weather heat loss and drafts
Superior Acoustic Isolation
Integrated with specialized multi-point locking channels and sound-dampening glass layers to systematically filter out street-level and environmental noise
Folding Glass Door Hardware and System Components
The folding system is engineered for smooth and dependable operation:
1 – Top guide rollers with polymer-coated ball bearings help the panels glide smoothly during opening and closing.
2 – Secure corner swivel hinges provide stable horizontal and vertical connections between the panels.
3 – Bottom rolling carriages support sash weights up to 287 lb (130 kg) using six polymer-coated ball bearings for long-term durability and easy movement.
4 – The GU threshold system provides low-threshold access, while UNI-JET concealed locks improve security on each sash.
5 – Decorative hinge covers provide a clean modern appearance while protecting hardware components from dust and wear.
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| Main Characteristics | Brillant | Synego |
|---|---|---|
| Profile depth | 70 mm | 80 mm |
| Maximum door size | 8 ft × 13.1 ft (2440 × 4000 mm) | 8 ft × 13.1 ft (2440 × 4000 mm) |
| Uf thermal insulation (EN 12412-2) | 1.3 W/m²K | 1.0 W/m²K |
| Thermal transmittance (U value) | 1.1 W/m²K | 0.8 W/m²K |
| Maximum sash weight | 176 lb (80 kg) | 176 lb (80 kg) |
| Number of panes | up to 6 | up to 6 |
Dubin
Dubin 37
Folding Door Handles
We offer two handle models for folding doors: Dublin and Dublin 37, available in six colour options to match different styles and finishes. Both handles are made of durable aluminium for reliable everyday use. Dublin handles feature a plastic or metal body depending on the selected version, while Dublin 37 handles use a zinc-aluminium alloy body with an aluminium cover that conceals the mounting screws for a cleaner appearance.
Configuration Options
- Folding panels create wide openings with clear outdoor views.
- Low-threshold design supports inward and outward opening.
- The main operating door can be placed on the left or right side.
- Up to six panels allow flexible design configurations.
Folding Door Colour Options
We offer a wide selection of colours and finishes for REHAU folding patio doors to complement both modern and traditional architectural styles. Our standard collection includes 7 popular architectural colours and realistic woodgrain textures, while 13 custom colour options are available in smooth, matte, and metallic finishes.
Whether you prefer a contemporary dark exterior, a natural wood look, or a custom finish, our folding patio doors can be tailored to match your project. Factory-applied finishes provide long-lasting durability, weather resistance, and low maintenance for Canadian climates. Visit our showroom to explore folding patio doors, colours, and finishes in person.
*Colours and finishes shown on your screen may vary from the actual product
Popular Folding Door Opening Types
Choose from several folding door opening configurations depending on the size of the opening, traffic flow, and preferred operation style. Folding patio doors can open to one side, both sides, or create a wide central opening for a seamless indoor-outdoor connection.
