The DERCHI Lucerne.78 is a thermal break aluminum folding door engineered for large-opening applications. For buyers searching custom bifold closet doors near me, DERCHI provides manufacturer-direct customization with project-grade performance for balcony, courtyard, and terrace connections.
- Lower load-bearing and upper guiding sliding structure for smooth large-panel operation
- 14.8mm thermal break insulation strip paired with double tempered insulating glass
- C1–C9 custom opening configurations adaptable to project-specific layouts
- Suited for indoor-outdoor connection spaces in residential and commercial builds
Product Details
The Lucerne.78 thermal break bifold door employs a lower load-bearing and upper guiding sliding system, where bottom rollers carry panel weight while upper wheels maintain alignment. Hidden hinges disappear when panels close for a clean exterior, and a built-in adjustment function corrects post-installation sagging. A strengthened center pillar between panels distributes force evenly and raises wind pressure resistance. The 14.8mm insulation strip combined with 5+27A+5 double tempered insulating glass forms a sealed thermal barrier against heat transfer.
Unlike standard custom made bifold closet doors, this system folds panels to one or both sides to create wide unobstructed openings for balconies, courtyards, and terraces. Buyers choose between a high track for superior sealing and drainage or a water-blocking low track for easier foot traffic. Nine opening configurations (C1–C9) accommodate diverse project layouts, and optional electric blinds add functionality for premium installations.
Product Features
Large Opening Foldable Storage: Panels fold to one or both sides to deliver maximum opening width, enabling seamless indoor-outdoor flow for residential and commercial settings that require wide, unobstructed access.
Thermal Break Insulation: A 14.8mm insulation strip paired with double tempered insulating glass reduces heat transfer across the door system, supporting energy-efficient requirements in residential and commercial projects.
Hidden Adjustable Hinges: Hinges are concealed when panels are closed for a clean exterior appearance, and include built-in adjustment capability to correct post-installation panel sagging and maintain alignment.
Strengthened Center Pillar: A reinforced pillar between door panels improves wind pressure resistance and distributes operational force evenly across the system, reducing stress on individual panel joints.
Flexible Track Options: Choose a high track for superior sealing and drainage performance, or a water-blocking low track for easier foot passage and basic water management at entry points.
Automatic Locking: Doors lock automatically upon closing to provide security without manual engagement, making them well-suited for high-traffic project installations where consistent locking behavior is important.
Customizable Styles
Glass Configuration: Standard 5+27A+5 double tempered insulating glass; upgrade to 5G+27A+5G or add 27A electric blinds for premium projects.
Opening Layout: C1–C9 custom opening styles including 4+0 low track and 2+2 high track configurations for various project layouts.
Panel Size: Single panel width ranges from 500–800mm and height from 1000–2800mm, providing made-to-measure sizing for diverse project requirements.
Color Finish: Powder coating in Sand grey, Dark coffee, Light coffee, White; stock colors include Indigo grey, Mint gold, Black walnut, and others.
Trim and Track: Six trim options from 47mm to 110mm, plus high track or water-blocking low track for different installation and drainage needs.
Hardware Accessories
KERSSENBERG Hidden Hinges: Concealed hinges with built-in adjustment function correct post-installation panel sagging, helping maintain long-term alignment and clean appearance across all door panels.
KERSSENBERG Handles: Aluminum handle and aluminum with-lock toggle handle provide secure, comfortable daily operation with a coordinated hardware aesthetic across the door system.
Lower Load-Bearing Rollers: Bottom rollers in 3+1 and 2+2 configurations deliver smooth, stable panel movement under load, supporting consistent operation across the full door span.
Upper Positioning Wheels: Upper positioning wheels guide door panels along the upper track, maintaining consistent alignment during opening and closing cycles for reliable operation.
Automatic Lock with Key Cylinder: Standard key lock cylinder with automatic locking when the door closes, meeting project security requirements without relying on manual engagement by occupants.
Basic Parameters
Performance data for this thermal break bifold door is listed below. Buyers should request official test reports for bidding and compliance documentation.
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | Class 6 | Confirm actual U-value and unit from test report before procurement use |
Wind Pressure Resistance | Class 8 / 4.5KPa | Verify with official test report as no testing agency is referenced |
Water Tightness | Class 4 / 350Pa | Verify with official test report as no testing agency is referenced |
Air Tightness | Class 7 / 1.8m³/(m·h) | Verify with official test report as no testing agency is referenced |
Sound Insulation | Class 3 / 30dB | Verify with official test report as no testing agency is referenced |
Product Specifications
Specifications for custom bifold closet doors are based on confirmed product data. Profile wall thickness and additional details are subject to factory confirmation at time of order.
Parameter | Specification |
|---|---|
Product Name | DERCHI Lucerne.78 Thermal Break Aluminum Folding Door |
Product Type | Thermal break aluminum bifold door |
Frame Width | 77.3mm |
Insulation Strip Width | 14.8mm |
Max Single Panel Width | 800mm |
Max Single Panel Height | 2800mm |
Min Single Panel Width | 500mm |
Min Single Panel Height | 1000mm |
Standard Glass | 5+27A+5 double tempered insulating glass |
Grid/Mullion Bar | 25×25mm |
Hollow Aluminum Strip | Black PVDF fluorocarbon with DERCHI logo |
Hardware Brand | KERSSENBERG |
Opening Style | C1–C9 configurations available |
Customization | Confirm with supplier before production |
Advantages
Manufacturer Direct Customization: C1–C9 opening styles, multiple track and trim options, and flexible panel sizes can be configured to match specific project specifications and layouts.
Branded Hardware System: KERSSENBERG hinges, handles, and rollers deliver consistent quality and coordinated after-sales support, reducing compatibility concerns across multiple project installations.
Large Opening Solution: Foldable panels create wide unobstructed openings for indoor-outdoor connection, addressing spatial needs in both residential and commercial projects where access width matters.
Structural Wind Resistance: Strengthened center pillar and Class 8 wind pressure rating suit exposed and high-rise installation environments where structural performance is a project requirement.
Project-Flexible Design: High or low track, multiple color options, and optional electric blinds adapt to diverse architectural and functional requirements across different project types.
Application Scenarios
Apartment: Bifold doors open balconies fully to expand living space, while thermal break insulation maintains indoor comfort when panels are closed against outdoor temperature and noise conditions.
Home Office: Foldable partitions divide or open workspace as needed, balancing natural light access with acoustic separation to support focused work environments in home office settings.
Hotel: Large opening bifold doors connect lobbies or restaurants to outdoor terraces, creating flexible indoor-outdoor guest experiences that adapt to seasonal use and event needs in hospitality settings.
Office Building: Thermal break folding doors seal meeting rooms or atriums when closed, and open fully for events, ventilation, or collaborative layouts that require wide, unobstructed floor space.
Outdoor: Courtyard and terrace openings benefit from weather-resistant sealing and drainage track options; buyers should confirm water tightness and wind pressure ratings for exposed outdoor environments before installation.
Residential Building: Balcony and living room large openings gain unobstructed views with foldable panel storage, while energy-efficient thermal break profiles help manage heating and cooling costs in residential buildings.
Exterior: Pool and garden facades use high track options for drainage; buyers should verify surface finish durability, water tightness, and wind pressure performance for exposed exterior installations.
Villa: Premium indoor-outdoor connection with hidden hinge aesthetics, custom color finishes, and optional electric blinds for luxury residential projects that require both visual refinement and functional flexibility.
FAQ
What is this custom bifold door product?
DERCHI Lucerne.78 is a thermal break aluminum folding door with a 14.8mm insulation strip, designed for large openings in balcony, courtyard, and terrace projects with foldable panel storage.
Where can custom bifold closet doors near me be used?
Suitable for apartments, villas, hotels, offices, and residential buildings needing large indoor-outdoor openings, as well as courtyards, terraces, and pool areas requiring wide, foldable access.
Can the bifold door be customized for my project?
Yes, C1–C9 opening styles, panel sizes 500–800mm wide and 1000–2800mm high, high or low track options, multiple colors, and optional electric blinds are all available for project customization.
What information is needed to quote custom bifold closet doors near me?
Provide opening dimensions, desired panel count and configuration, track type preference, color selection, glass type, and project location so our team can prepare accurate pricing and lead time estimates.
Do you support B2B commercial projects?
Yes, DERCHI supports project customization with flexible opening layouts, track options, and trim profiles suitable for residential and commercial developments requiring specified performance and design coordination.
Are technical documents available for bidding?
Performance data for wind pressure, water tightness, air tightness, and sound insulation is available; request official test reports from our team to support bidding submissions and compliance review.
What should I confirm before ordering?
Confirm opening dimensions, panel configuration, track type, color, glass specification, and profile wall thickness with the factory before ordering to ensure full alignment with your project requirements.
What about certifications, packaging, and shipping?
Certification details, packaging specifications, and shipping arrangements are confirmed per order; contact our team to discuss compliance documentation and logistics planning tailored to your project destination.
