Aluminium bifold doors, also called aluminium folding doors, aluminium bi fold doors or aluminium concertina doors, fold to one or both sides to create a wider opening and better view. They are ideal for patios, balconies, garden rooms, villas and commercial large openings.
Chalco supplies custom aluminium bifold doors for homes, commercial buildings and projects. They are ideal for patios, balconies, garden rooms, villas, restaurants, hotels and large openings, offering flexible access, a modern look and better space use.
Chalco can also customize opening size, panel quantity, opening direction, glass, frame color, finish, hardware and packaging. This makes our doors suitable for bulk orders from window and door companies, builders, distributors and project buyers.
Chalco can provide aluminium bifold door configurations and document support according to relevant project standards.
Chalco offers different types of aluminium bifold doors by application, panel configuration and opening style to meet the needs of homes, villas, patios, balconies, commercial spaces and projects.
Exterior aluminium bifold doors are ideal for patios, garden rooms, villa facades and commercial large openings. They offer better wind resistance, water tightness, air tightness, thermal insulation and weather durability for outdoor use.
Aluminium patio bifold doors are suitable for openings from living rooms to patios, gardens, pool areas or outdoor leisure spaces. They create a wider access area and better indoor-outdoor connection, making them ideal for homes, villas, holiday houses, hotels and restaurants.
Interior aluminium glass bifold doors are used for room partitions, meeting rooms, offices, showrooms and flexible space division. They focus more on space use, natural light, sound insulation, appearance and flexible opening.
Slim frame aluminium bifold doors are suitable for projects that need more light, wider views and a modern look. The narrow visible frame increases the glass area, but panel size, glass weight, profile strength and hardware load capacity should be considered together.
Commercial aluminium bifold doors are suitable for restaurants, cafés, showrooms, shops, hotels and street-facing commercial spaces. These projects usually require frequent opening, stable panels, durable hardware, wear-resistant finishes, easy installation and bulk delivery.
2-panel bifold doors have a simple structure and usually fold to one side. They are suitable for small openings, balconies, side doors and compact residential spaces. They offer a wider opening than hinged doors, but less openness than multi-panel bifold doors.
3-panel bifold doors are suitable for medium openings and provide a larger opening than 2-panel doors. Some designs can include a traffic door for daily access without opening the whole system, making them ideal for patio, garden and living room entrances.
4-panel bifold doors are suitable for medium to large openings. They can fold fully to one side or split 2 panels on each side. They offer a wider opening and a balanced appearance, ideal for villas, garden rooms, wide patios, restaurants and commercial spaces.
5-panel bifold doors are suitable for wider building openings and are often used in residential and commercial projects that need large open areas. They offer good access flexibility and are ideal for luxury homes, hotels, restaurants, holiday houses and commercial large openings.
6-panel and larger bifold doors are suitable for large-span openings and project applications. These large aluminium bifold doors require careful confirmation of panel size, glass weight, profile structure, hardware load capacity, track accuracy and wind resistance requirements.
Inward opening bifold doors fold toward the indoor side. They are suitable for projects with limited outdoor space, outdoor walkways, railings, garden facilities or areas where the doors should not occupy exterior space. Indoor furniture, curtains and access routes should be confirmed in advance.
Outward opening bifold doors fold toward the outdoor side. They are commonly used for patios, gardens, courtyards, pool areas and commercial large openings. They save indoor space, but enough outdoor folding space should be confirmed.
Single-side folding means all panels fold to the left or right side. It is suitable for spaces with a fixed wall, furniture, column or clear traffic direction on one side. The opening is simple, but enough stacking space should be confirmed.
Double-side folding means the panels fold to both left and right sides. It is often used for wider openings or symmetrical facades. It creates a more balanced folding layout and is suitable for villas, garden rooms, hotels, restaurants and display spaces.
EL70 is a 70 mm aluminium bifold door system with a bottom-bearing design for more stable operation. It is suitable for homes, balconies, patios and indoor-outdoor spaces that need frequent opening and wider access.
This bifold door has the following features:
Technical parameters
| Parameter | Value |
| Frame depth | 70 mm |
| Frame thermal break strip | 20 mm |
| Sash depth | 70 mm |
| Sash thermal break strip | 24 mm |
GWT-Z70 is a 70 mm aluminium bifold door system for wide openings, clear views and good thermal insulation. With 2.0 mm profiles, a 70 mm outer frame and slim visible widths, it helps keep the structure stable while reducing the visible frame area.
Its 5 mm + 12A + 5 mm + 12A + 5 mm glass improves insulation, sound reduction and comfort. GWT-Z70 also offers wider ventilation, panoramic opening, smooth operation and better energy efficiency.
Performance reference
KSZD 120 series is a concealed hinge heavy-duty bifold door system for projects requiring higher load capacity, sealing performance and overall appearance. Its concealed design reduces exposed hardware and helps improve the door's clean look and sealing effect.
The system has a 145 mm structural depth and a 44 mm glass groove. It can be fitted with 5 mm + 27A + 5 mm insulated glass, making it suitable for living rooms, sunrooms and other large openings that require higher stability.
Chalco offers aluminium bifold doors in various sizes based on opening width, height and panel quantity. Common sizes include 2 m, 2.4 m, 3 m, 4 m, 5 m and 6 m. Made to measure aluminium bifold doors can also be customized according to drawings, site dimensions and project requirements.
| Size | Common panel configuration | Description |
| 2 m aluminium bifold doors | 2-panel | Suitable for small openings, balconies, side doors and partial openings |
| 2.1 m / 2100 mm bifold doors | 2-panel | Suitable for narrow residential openings |
| 2.4 m / 2400 mm aluminium bifold doors | 2-panel / 3-panel | Commonly used for balconies, patios and small garden entrances |
| 2.7 m aluminium bifold doors | 2-panel / 3-panel | Suitable for small to medium openings with flexible access |
| 3 m / 3000 mm aluminium bifold doors | 2-panel / 3-panel | A popular size for homes, patios and garden openings |
| 3.5 m / 3500 mm bifold doors | 3-panel / 4-panel | Suitable for medium-width openings |
| 3.6 m aluminium bifold doors | 3-panel / 4-panel | Suitable for living rooms, garden rooms and patio spaces |
| 4 m aluminium bifold doors | 3-panel / 4-panel | Suitable for villas, garden rooms and wider patios |
| 5 m aluminium bifold doors | 4-panel / 5-panel | Suitable for large home openings, restaurants, hotels and commercial spaces |
| 6 m aluminium bifold doors | 5-panel / 6-panel+ | Suitable for large-span openings, commercial spaces and projects |
| Size in feet | Approx. metric size | Common configuration |
| 6 ft aluminium bifold doors | About 1.8 m | 2-panel |
| 8 ft aluminium bifold doors | About 2.4 m | 2-panel / 3-panel |
| 12 ft aluminium bifold doors | About 3.6 m | 3-panel / 4-panel |
For the same opening width, panel quantity affects panel size, stacking space, hardware, opening effect and cost. More panels allow wider openings but require higher hardware and installation accuracy.
| Panel configuration | Suitable size range | Main features |
| 2-panel aluminium bifold doors | About 2 m–3 m small openings | Simple structure, suitable for narrow openings |
| 3-panel aluminium bifold doors | About 2.4 m–3.6 m medium openings | Flexible opening, with optional traffic door |
| 4-panel aluminium bifold doors | About 3.5 m–4.5 m medium to large openings | Can fold to one side or both sides, with a balanced facade |
| 5-panel aluminium bifold doors | About 4.5 m–5.5 m wider openings | Larger opening area, suitable for homes and commercial spaces |
| 6-panel and larger bifold doors | About 5.5 m and above large-span openings | Suitable for villas, hotels, showrooms and project applications |
Note: More panels are not always better. Panel quantity should be confirmed based on opening width, single panel size, glass weight, opening direction and stacking space.
Chalco offers custom aluminium bifold door solutions for homes, villas, patios, sunrooms, commercial spaces and projects. Options include glass, hardware, color, threshold, gaskets, drainage and folding layout.
Glass options
Common glass configuration reference:
| Glass configuration | Suitable needs |
| 5 mm + 12A + 5 mm + 12A + 5 mm | For GWT-Z70 bifold doors, suitable for higher thermal insulation, sound reduction and comfort needs |
| 5 mm + 27A + 5 mm insulated glass | For KSZD 120 series heavy-duty bifold doors, suitable for living rooms, sunrooms and large openings |
| Double glazing | For standard homes, patios and commercial spaces |
| Triple glazing | For high thermal insulation, sound reduction and energy-saving projects |
| Tempered glass | Improves safety and impact resistance |
| Laminated glass | Suitable for projects with higher safety, sound reduction and protection requirements |
The hardware system affects the smooth operation, safety, load capacity and long-term stability of aluminium bifold doors.
Color and surface finish directly affect the appearance, weather resistance, corrosion resistance and long-term performance of aluminium bifold doors.
Suitable for modern homes, villas, hotels, restaurants and commercial spaces. They create strong visual contrast and highlight architectural lines.
Suitable for homes, sunrooms, garden rooms and light-colored facades, with a clean and bright appearance.
Suitable for modern buildings, commercial projects and neutral facades, with a timeless look and strong adaptability.
Suitable for luxury homes, villas, patios and modern commercial spaces. It is a popular color in the European market.
Suitable for projects that need consistent colors for doors, windows, curtain walls, railings or outdoor aluminium systems, and are often used in modern architectural design.
For outdoor projects, dark colors such as black, anthracite grey and RAL 7016 need better weather resistance, color retention and heat control. Chalco can recommend suitable coatings based on the project location and environment.
Color selection for reference only. Slight variations from the physical item may occur.
Surface finish options
Different finishes suit different building environments. Powder coating is commonly used for homes and standard commercial projects. For coastal, high-UV, long-term outdoor or high-end projects, higher-grade coating options can be selected based on weather resistance needs.
| Surface finish | Features and suitable uses |
| Powder coating | Rich color options, customizable with RAL colors. Suitable for homes, patios, sunrooms, commercial spaces and standard outdoor projects. |
| Anodizing | Metallic surface, good wear and corrosion resistance. Suitable for silver, champagne, bronze and other metallic finishes. |
| PVDF coating | Better weather resistance, UV resistance and color retention. Suitable for coastal areas, high-UV environments, high-rise buildings and long-term outdoor projects. |
| Wood grain | Provides a wood-like appearance with aluminium weather resistance. Suitable for villas, sunrooms, garden rooms and high-end homes. |
| Dual colour | Exterior color can match the facade, while interior color can match the room design. Suitable for high-end homes, hotels and custom projects. |
Selection advice:
For custom aluminium bifold door colors and finishes, please provide the target color, RAL code, surface effect, use environment and project location. Chalco can help confirm suitable powder coating, anodizing, PVDF, wood grain or dual colour solutions.
Threshold, sealing and drainage design affect the water resistance, access convenience, air tightness and daily use experience of bifold doors.
Common threshold and sealing configurations:
| Configuration | Suitable needs |
| Low threshold | Improves access convenience, suitable for homes, patios and barrier-free needs |
| Weathered threshold | Improves outdoor rain protection and drainage |
| Hidden drainage | Reduces track water buildup and keeps a clean appearance |
| EPDM gasket | Improves sealing, weather resistance and sound reduction |
| Multi-point sealing | Reduces air leakage, water penetration and dust entry |
Panel quantity and opening direction affect the opening area, stacking position, daily access and indoor or outdoor space use. Chalco offers 2-panel, 3-panel, 4-panel, 5-panel and larger configurations based on opening size and use habits. Options include inward opening, outward opening, single-side folding, double-side folding, corner opening and traffic door designs.
For more details, please see the aluminium bifold door types above.
Different projects have different performance requirements for aluminium bifold doors. For exterior doors, sunrooms, large openings, high-rise buildings, coastal areas or commercial projects, key parameters should be confirmed, including wind load, air tightness, water tightness, Uw value and acoustic performance.
Performance reference recommendations:
Chalco can help customers choose the right bifold door system based on application, opening size, glass configuration and local climate. For specific performance data of GWT-Z70, EL70, KSZD 120 and other systems, please see Chalco featured bifold doors.
Aluminium alloy grade and temper affect the strength, processability, surface finish and long-term stability of bifold door profiles. Chalco can select suitable aluminium profile materials based on panel size, glass weight, use environment and project requirements.
Common alloy reference
| Alloy temper | Suitable needs |
| 6063-T5 | Standard residential, balcony, patio and general commercial aluminium bifold doors |
| 6063-T6 | Projects requiring higher profile strength, structural stability and larger panel sizes |
| 6061-T6 | Heavy-duty bifold doors, large panels, heavier glass, frequent opening or special project applications |
For custom aluminium bifold doors, please provide opening size, panel quantity, opening direction, glass, color, hardware, alloy, project location and quantity. Chalco can help confirm the suitable system, finish and quotation.
The price of aluminium bifold doors is affected by size, panel quantity, glass, surface finish, hardware, order quantity and packaging. Different project configurations lead to different final quotations.
Larger openings require stronger profiles, larger glass, higher hardware load capacity and better structural stability, so the cost is higher.
2-panel, 3-panel, 4-panel, 5-panel or larger configurations affect profile usage, hinges, rollers, locks and processing costs.
Double glazing, triple glazing, Low-E glass, laminated glass, tempered glass and integral blind glass have different costs. Triple glazing, laminated glass and special energy-saving glass are usually more expensive.
Powder coating, anodizing, PVDF, wood grain, textured colors, metallic colors, dual colour and custom RAL colors affect finishing cost and production time.
Heavy-duty hinges, load-bearing rollers, multi-point locks, branded hardware, traffic door hardware and frequent-use hardware solutions affect the final door price.
Order quantity affects production scheduling, material utilization, packaging and shipping costs. Bulk orders usually help reduce unit cost.
Export packaging, wooden cases, pallets, glass protection, sorted hardware packing, project labels and container loading requirements all affect the final supply price.
Aluminium bifold doors and aluminium sliding doors are both suitable for patios, gardens, balconies, villas and commercial large openings, but they work differently. Bifold doors are better for wide open access, while sliding doors are better for large glass views and simple daily use.
| Comparison item | Aluminium bifold doors | Aluminium sliding doors |
| Opening style | Multiple panels fold to one or both sides | Panels slide left or right along the track |
| Opening area | Creates a wider access space when fully opened | Usually opens only part of the doorway |
| Glass view | More panel divisions, but stronger openness when opened | Larger glass panels and wider views when closed |
| Space use | Requires stacking space after folding | Slides within the track without extra indoor or outdoor space |
| Daily use | Suitable for patios, gardens or commercial spaces that need full opening | Suitable for frequent access and easier daily operation |
| Suitable projects | Patios, garden rooms, villas, restaurants, cafés and large openings | Balconies, living rooms, hotels, view rooms and large glass openings |
If the project focuses more on wide access and indoor-outdoor connection when fully opened, aluminium bifold doors are a good choice. If the project focuses more on large glass views, simple operation and fewer panel divisions, aluminium sliding doors are more suitable.
Aluminium bifold doors can be used for homes, villas, patios, balconies, garden rooms, hotels, restaurants and commercial storefronts. They help create wider openings, better natural light and more flexible space layouts.
Chalco supplies aluminium bifold doors for homes, villas, patios, sunrooms, hotels, restaurants, commercial storefronts and project applications. We support aluminium profile production, thermal break processing, surface finishing, customization, export packing and document support.
With 300,000 tons annual capacity, Chalco supports bulk orders for window and door companies, distributors, builders and project buyers.
Chalco has 70 extrusion lines from 600 tons to 5,500 tons, supporting standard profiles, large-section profiles and custom aluminium bifold door profiles.
Custom tooling is available for frame profiles, sash profiles, glazing beads, tracks and matching profiles based on drawings or project requirements.
Thermal break aluminium profiles help improve insulation and indoor comfort for exterior doors, sunrooms, villas and energy-saving buildings.
Powder coating, PVDF coating and wood grain finish are available in black, white, grey, anthracite grey, RAL colors and custom finishes.
Chalco can customize opening size, panel quantity, opening direction, glass, hardware, alloy and frame color for residential, commercial and project orders.
Export packaging helps protect frames, panels, glass, hardware and accessories during sea shipping and project delivery.
Material, dimension, surface finish, packing and delivery documents can be provided for inspection, customs clearance and project records.
For a quotation, please provide opening size, panel configuration, glass requirements, frame color, hardware preference, project location and order quantity.
Chalco provides suitable packing solutions for aluminium bifold doors based on product structure, surface finish, glass configuration, hardware accessories and export shipping requirements. This helps reduce transport damage, accessory mix-ups and on-site checking difficulty.
Aluminium profiles, frames and panels can be covered with protective film to reduce scratches during transport, handling and storage before installation.
Frames, panels, tracks and profile ends can be protected with corner guards, anti-impact materials or reinforced packing to reduce edge damage, deformation and surface scratches.
Pallets, wooden crates or combined packing can be selected based on order quantity, door size and shipping method. They are suitable for sea shipping, container loading and project delivery.
Hinges, rollers, handles, locks, gaskets, screws and installation accessories can be sorted and packed separately for easier checking, installation and management on site.
Labels can be added by floor, room number, door type, size, opening direction or project area to help installers identify products quickly and reduce installation mistakes.
Packing photos can be provided before shipment to help customers check packing status, product labels, accessory sorting and container loading.
Chalco can help arrange container loading based on order size, packing method and container space to improve loading efficiency and reduce movement or collision during transport.
Chalco is an aluminium bifold door manufacturer with factory direct supply, helping customers reduce middle costs and get more competitive prices.
Yes. Chalco can customize aluminium bifold doors by opening width, height, panel quantity, opening direction, glass type, color and hardware requirements.
The MOQ depends on the door system, size, finish, glass configuration, hardware requirements and whether new tooling is needed. Please provide your specifications for confirmation.
Yes. Sample options can be confirmed based on project needs, including profile samples, color samples, finish samples or partial door and window structure samples.
The price depends on opening size, panel quantity, glass type, surface finish, hardware system, order quantity and packing requirements. Drawings or dimensions help us provide a more accurate quote.
Please provide opening width and height, panel quantity, opening direction, glass type, frame color, hardware requirements, project location, order quantity, drawings or site photos.
Yes. Chalco can match hinges, rollers, handles, locks, gaskets, thresholds, drainage parts and installation accessories according to project requirements.
Yes. Chalco offers common colors such as black, white, grey and dark grey, and can also customize colors according to customer color codes or samples.
Yes. For outdoor projects, profile structure, glass configuration, surface finish, water tightness, air tightness, wind resistance and threshold drainage should be confirmed.
Yes. Chalco can provide protective film, corner protection, pallet or wooden crate packing, sorted hardware packing, project labels, packing photos and container loading support.
Material documents, dimensional inspection materials, surface finish documents, packing lists, packing photos and other project delivery documents can be provided according to order requirements.
Delivery time depends on the door system, size, quantity, surface finish, glass configuration and packing requirements. The production and delivery cycle can be confirmed after drawings, colors and configurations are finalized.
