Folding Doors
Custom Folding & Accordion Doors | Aluminum, Glass & Commercial Partition Systems
Bi-Fold, Tri-Fold, Multi-Panel Stacking & Operable Partition Systems — Factory Direct for Residential, Hospitality & Commercial Projects
Folding and accordion door systems eliminate the boundary between spaces without sacrificing weather performance, thermal efficiency, or acoustic separation. Hotian manufactures custom folding doors and multi-panel accordion partition systems in thermally broken aluminum, uPVC/vinyl, and wood-aluminum composite — engineered for residential patio and indoor-outdoor living applications, commercial restaurant indoor-outdoor dining connections, hotel ballroom partitions, and office flex-space dividers. Every system is manufactured to your exact opening dimensions with no standard size restrictions.
- Full System Range — Bi-fold, tri-fold, multi-panel concertina stacking, and operable accordion partition configurations for openings from 1.5m to 12m wide
- Residential & Commercial Engineering — Thermally broken aluminum and uPVC for weatherproofed exterior applications; aluminum and wood-aluminum composite for interior operable partition systems
- High-Performance Glass — Double-glazed IGU, low-E coated, laminated safety glass, acoustic glass, and tinted solar control glass across all configurations
- MOQ 1 Piece — Single custom folding doors for renovation projects and multi-system commercial fit-out packages both supplied factory-direct
Custom Folding & Accordion Door Systems
From slim-profile residential bi-fold patio doors to wide-span commercial accordion partitions engineered for hotel ballrooms and restaurant indoor-outdoor dining, the Hotian folding door range covers every opening type, performance requirement, and architectural brief.
Custom Folding Door Solutions for Every Application
For restaurant, retail, and commercial fit-out contractors, accordion folding doors are operational infrastructure — a system that must function reliably under daily commercial cycle frequency for the full operating life of the business. Hotian's commercial accordion partition systems are specified with hardware cycle ratings, track section weights, and seal performance appropriate to commercial use from the outset. We provide full CAD shop drawings including track mounting details, header beam specifications, and floor threshold profiles for structural engineer review before production commences.
For office developers and commercial interior designers, folding glass partition systems are increasingly specified as a flexible alternative to fixed walls, allowing floor plates to be reconfigured between open-plan, divided, and private configurations on demand. Hotian's interior folding glass partition systems use slim aluminum top-track profiles that integrate with suspended ceiling grids, panel dimensions optimized for the structural grid of the building, and acoustic ratings confirmed by tested STC data rather than marketing claims.
- Custom Materials
- Custom Colors
- Custom Sizes
- Custom Styles & Designs
- Custom Opening Methods
- Custom Hardware
Product Features
Every Hotian folding and accordion door system is engineered and pre-assembly tested as a complete unit — track, panels, seals, and hardware — before leaving the factory.
Why Source From Hotian?
Folding and accordion door systems are among the most mechanically complex door types produced — the track, roller, hinge, and seal systems must function in perfect coordination across every panel simultaneously, at widths and weights that impose significant structural loads on the building opening. Hotian’s engineering-led production model ensures every folding door system is specified, fabricated, and tested as a complete integrated system before it leaves the factory.
Top-Hung vs Bottom-Rolling: Correctly Specified for Each Application
The choice between top-hung and bottom-rolling track systems is determined by the structural capacity of the head frame, the panel weight, the floor surface type, and the cycle frequency of the application. Top-hung systems transfer panel weight to the head frame and leave the floor threshold unobstructed — preferred for commercial, hospitality, and accessibility-sensitive applications. Bottom-rolling systems distribute panel weight to the floor track — suited to lighter residential bi-fold applications where head frame loading is limited. Hotian’s engineering team specifies the correct track system for each order based on these parameters, not as a default selection.
Thermally Broken Profiles for Exterior Energy Performance
Exterior folding and accordion doors represent the largest single glazed area in most residential and commercial facades. A non-thermal-break aluminum frame at this scale creates significant thermal bridging, cold interior frame surfaces, and condensation in heating-season conditions — directly impacting building energy performance and occupant comfort. All Hotian exterior folding door frames incorporate a polyamide thermal break as standard. This is not an upgrade option — it is a baseline engineering requirement for an exterior glazed system at this scale.
Commercial-Cycle Hardware for Hospitality and Restaurant Applications
A restaurant accordion partition system connecting indoor dining to an outdoor terrace may complete 15–20 open/close cycles per day, 300+ days per year. Residential bi-fold hardware is not rated for this frequency. Hotian specifies stainless steel roller carriages, heavy-duty concealed floor closers, and commercial-grade multi-point locking hardware for all commercial and hospitality accordion door orders — hardware documented to 100,000+ cycle ratings appropriate for high-frequency commercial use.
Acoustic Engineering for Commercial Partition Applications
Hotel ballroom partitions, conference room dividers, and premium office acoustic screens are specified to minimum STC ratings in building contracts and hospitality franchise standards. Meeting these ratings requires more than acoustic glass — it requires compression seals at every panel edge junction, drop seals at the threshold engaging the floor surface when the partition is closed, and acoustic mass in the panel infill appropriate to the target STC rating. Hotian’s commercial accordion partition systems are engineered with these elements from the design stage, not retrofitted as afterthoughts.
Opening Width Engineering up to 12,000mm
Standard folding door systems are designed for residential openings to approximately 4,800mm. Wider commercial openings — hotel ballrooms, resort indoor-outdoor dining, commercial showrooms — require structural engineering of the head frame, mid-span carrier beam, and panel configuration to distribute track loads correctly across the opening width. Hotian’s engineering team reviews all orders above 4,800mm for structural track specification, panel count optimization, and header beam loading calculations before production begins.
Mixed Residential and Commercial Supply from One Factory
Development and hospitality projects regularly specify both residential-grade thermally broken bi-fold patio doors for guest suite terraces and commercial-grade acoustic accordion partitions for function spaces — in the same building, often in the same project package. Hotian manufactures both system types within the same facility, coordinates their production schedules, and delivers them in a single container shipment with unified documentation and hardware finish coordination.
Precision Manufacturing at Every Stage
Every Hotian custom folding door system is produced through a controlled manufacturing sequence — from profile extrusion and thermal break assembly through frame fabrication, glass cutting and IGU production, roller and hardware fitting, track assembly, powder coating, and complete pre-assembly operational testing — ensuring the system folds, stacks, locks, and seals correctly before it leaves the factory.
Customize Process
Our dedication to complete customization solution can be seen in all aspects of our production process.
Project Consultation
Our sales team discusses your specific requirements, market needs, and technical specifications. We provide expert advice on design options, materials, and performance features to ensure optimal product configuration.
Technical Design Analysis
Our engineering team develops detailed technical drawings and specifications. We analyze all aspects including structural requirements, operation mechanisms, and compliance with international standards and local regulations.
Sample Development
We produce product samples based on approved specifications. This allows physical verification of quality, functionality, and aesthetics before full production, ensuring complete satisfaction with the final design.
Quote Finalization
Based on confirmed specifications and quantities, we provide comprehensive pricing details. Our transparent quotation includes all costs from production to shipping, enabling accurate budget planning.
Production Planning
Upon order confirmation, we organize material procurement and production scheduling. Our project managers coordinate all departments to ensure efficient workflow and quality control.
Quality Inspection
Each folding door undergoes systematic quality checks throughout production. Final testing includes operation verification, performance evaluation, and appearance inspection before packaging.
Shipping Arrangement
Organize secure packaging and efficient delivery logistics. We handle all export documentation and coordinate with reliable shipping partners to ensure safe, timely delivery.
Take Inspiration from Our Projects
Frequently Asked Questions
Find comprehensive answers about our folding door customization, manufacturing processes, quality standards, and international shipping procedures.
What is the difference between a bi-fold door and an accordion door?
A bi-fold door typically refers to a two or four-panel system where panels fold in pairs against one jamb, used for residential patio and garden openings. An accordion door refers to a multi-panel system — typically six panels or more — where all panels fold and stack to one or both sides of the opening, resembling the bellows of an accordion. Accordion doors are most commonly specified for wide commercial openings such as restaurant indoor-outdoor dining connections, hotel ballroom partitions, and large residential living spaces. Both systems are available in Hotian's custom folding door range.
What is the maximum opening width for a custom folding door system?
Hotian manufactures folding door systems for residential openings from 1,500mm and commercial accordion partition systems up to 12,000mm total opening width. Openings above 4,800mm require engineering review for track section specification, header beam loading, and panel count optimization. Our engineering team reviews all wide-span orders before production and provides structural track calculations for building permit and contractor submittal purposes.
What is the MOQ for custom folding and accordion doors?
MOQ is 1 piece. Single custom folding door systems for residential renovation projects and multi-system commercial fit-out packages are both supplied from the same factory at factory-direct pricing.
Are your exterior folding doors thermally broken?
Yes. All exterior aluminum folding door profiles at Hotian incorporate a polyamide thermal break as standard. The thermal break interrupts the aluminum conduction path between the interior and exterior frame sections, reducing thermal bridging, improving the overall U-value of the door assembly, and preventing condensation on interior frame surfaces in cold-climate conditions. Frame U-value data is available on request for energy compliance documentation.
What STC acoustic rating can your accordion partition systems achieve?
Hotian's commercial accordion partition systems are available in configurations achieving STC ratings from 32dB (standard aluminum frame with tempered glass) up to 42dB (acoustic laminated glass with perimeter compression seals and floor drop seals). Target STC rating should be specified at order stage; our engineering team will confirm the correct glass specification, seal configuration, and panel construction to achieve the required rating. Tested STC data from certified third-party testing is available for hospitality franchise compliance and commercial building permit submittals.
Do you provide installation documentation for folding door systems?
Yes. Hotian provides detailed installation manuals, track mounting specifications, header beam loading data, and hardware adjustment instructions for all folding door systems. For commercial and development projects, full CAD shop drawings including track mounting details, floor threshold profiles, and panel configuration schedules are provided for structural engineer review and contractor site reference.
What is the difference between top-hung and bottom-rolling folding door systems?
Top-hung systems suspend panel weight from a head track via roller carriages, leaving the floor threshold unobstructed — preferred for commercial, hospitality, and accessibility applications where a flush or low-profile floor threshold is required. Bottom-rolling systems support panel weight via floor-mounted rollers — suited to lighter residential bi-fold applications where head frame loading is a structural constraint. The correct system is specified at order review based on panel weight, opening width, floor surface type, and application cycle frequency.
Can folding doors be supplied with integrated fly screens?
Yes. Retractable cassette screen systems compatible with folding door track configurations are available for residential aluminum and uPVC bi-fold patio doors. Screen systems ordered with the main folding door are dimensioned and manufactured together to ensure track compatibility and ship in the same container.
What glass options are available for custom folding doors?
Standard specification is double-glazed tempered IGU (4mm outer, 12mm spacer, 4mm inner). Optional upgrades include: low-E coating for improved U-value, argon gas fill, acoustic PVB laminated inner pane for STC improvement, triple glazing for cold-climate applications (U-value below 1.0 W/m²K), tinted and solar control glass for high solar gain facades, and frosted or satin glass for privacy applications. Glass specification is applied consistently across all panels in the system.
Can Hotian supply folding door systems for a full hospitality development project?
Yes. Hotian regularly supplies complete folding door packages for hotel and resort developments covering guest suite thermally broken bi-fold terrace doors, restaurant and bar indoor-outdoor accordion systems, and ballroom acoustic partition systems — all within a single coordinated project order. Full CAD shop drawings, hardware schedules, and tested performance data are provided for architect review and contractor submittal.
What finishes are available for aluminum folding doors?
Standard powder-coat finishes: matte black (RAL 9005), white (RAL 9016), dark bronze (RAL 8019), and anthracite grey (RAL 7016). Custom RAL color matching is available for project brand and facade coordination requirements. Anodized finishes in clear and dark bronze are available for coastal environments requiring Class 1 anodizing for salt-air resistance. Wood-aluminum composite systems provide natural timber interior faces in oak, walnut, and custom species.
What is the lead time for custom folding door systems?
Standard residential bi-fold and tri-fold systems are completed within 15–20 working days from dimension confirmation and deposit. Commercial accordion partition systems with acoustic specifications are completed within 20–25 working days. Wide-span systems requiring engineering review are confirmed with a project-specific lead time at order stage.