Three-Tone 5 Panel Solid Interior Door Versatile Matte Finish Low-Maintenance Modern Traditional Homes

In a recent boutique hotel project in Southeast Asia — 85% monsoon humidity, 120 guest rooms — our Three-Tone 5 Panel Solid Interior Door was specified precisely because it offered the moisture-proof performance and custom color matching that standardized doors could not. The five-panel configuration adds architectural gravitas that flat-slab doors cannot achieve, particularly in rooms with ceiling heights above 2.7m. The proprietary three-tone matte finish is achieved through multi-layer translucent coating — but we can also match any RAL/NCS color for branded hospitality projects. Beneath the surface, the insect-repellent treated composite core has been tested at 95% RH for 72 hours without warping or delamination. Cold-climate stabilized for -20°C to 45°C range, it performs reliably from unheated basement entries to sun-facing tropical corridors. Our full OEM/ODM service extends from core fill material and panel count to dimensions, finish, and hardware — we manufacture to your specification, not the other way around. Factory-assembled with pre-installed hardware, this door reduces specification complexity to a single line item.

• Five-Panel Architectural Composition: Five recessed panels optimized for standard 2.1m heights — visually elongating the opening. Available in standard three-tone matte or custom color matched to any RAL/NCS reference.
• Full OEM/ODM Customization: Custom dimensions, color matching, core fill (solid composite/honeycomb/mesh), panel count and style, surface processing, and hardware. From single proof-of-concept samples to full container production runs.
• 72-Hour Moisture + Insect Resistance: 95% RH tested, zero warping. Anti-termite and anti-borer core treatment throughout. Cold-climate stabilized (-20°C to 45°C). The door we recommend for bathrooms, coastal properties, and tropical installations.
• Three-Tone Matte or Custom Color: Proprietary multi-layer translucent finish for the signature look, or full RAL/NCS color matching for branded projects. Color fastness ensured — the tonal depth comes from layer physics, not fading dyes.
• Complete Factory-Assembled Package: Leaf, 30mm frame, frame line, hinges, lock, and handle — pre-calibrated. Site labor reduced to positioning and fixing.

This recessed panel interior door features a solid wood composite frame combined with an optional engineered core structure. Depending on project requirements, different core configurations can be selected, including aluminum honeycomb, solid wood mesh, or other applicable engineered structures.

The structural design is intended to balance door stability, weight, and acoustic performance.

The deep walnut appearance can be customized through different surface processing options, including painted finishes, baked coatings, natural wood veneer, or other finishes according to the selected product configuration.

For projects requiring a natural wood appearance, veneer options can be customized according to the required wood grain, color, and interior design style.

The surface finishing process includes multiple preparation and finishing stages to achieve a smooth and consistent appearance. Depending on the selected finish, the door surface may be processed through sanding, coating, color adjustment, curing, and final surface inspection.

The door structure is designed to support stable performance under normal indoor environmental conditions. Door dimensions, thickness, core configuration, and frame construction can be customized according to project requirements and installation conditions.

This image shows part of the actual door assembly process at our manufacturing facility.

Our production team handles and assembles door components according to the confirmed product design and manufacturing requirements. Different components are prepared, positioned, and assembled during the production process to support customized door configurations.

The manufacturing process combines production equipment with hands-on workmanship. Production personnel participate in different stages of component preparation and assembly according to the product structure and project requirements.

This original factory photograph provides a real view of part of our manufacturing process and the practical work involved in producing customized wooden door solutions.

This photo shows part of our actual manufacturing environment, where door panels and engineered board materials are processed and handled during production.

The workshop is equipped with production machinery and material handling systems to support panel processing and manufacturing operations. Finished and semi-finished panels are organized and transferred through different production stages according to manufacturing requirements.

By combining production equipment with standardized manufacturing procedures, we aim to maintain consistent processing quality and production efficiency for different door configurations and project requirements.

Living rooms, formal dining rooms, master suites, boutique hotel guest rooms, and luxury residential developments. The moisture-proof + insect-resistant core makes this the recommended specification for coastal properties and tropical climates. Custom color matching available for branded hospitality projects.

This image shows finished door products being prepared and loaded for transportation at our manufacturing facility.

Protective packaging is used during product handling and shipment preparation. Packaging methods can be adjusted according to product dimensions, order quantities, and transportation requirements.

For project and international orders, packaging requirements can be discussed according to the confirmed shipping arrangement.

We place importance on quality management, material selection, production control, and applicable compliance requirements throughout the manufacturing process.

Quality and compliance requirements may vary depending on the product configuration, materials, destination market, and project specifications. For customized door projects, applicable requirements can be reviewed according to the confirmed order specifications.

The certificate shown below is part of our available compliance documentation.

According to the information provided in the certification document, the tested product scope was evaluated in accordance with EN 16516:2017 and the applicable requirements referenced in the certificate.

The validity and applicability of certification documentation are limited to the specific product models, materials, and conditions described in the original document. Customers should confirm the applicable standards and documentation for their specific door configuration before placing an order.

For project requirements involving specific markets or compliance standards, our team can provide available documentation and discuss applicable product requirements based on the confirmed project specifications.

Certificate Type: Certificate of Compliance
Certificate No.: TQT0025B726EC
Test Standard: EN 16516:2017
Test Report No.: TQT0025B726E

Note: The certification document applies to the product scope described in the original certificate. Certification applicability for a specific door product should be confirmed according to the final product configuration and project requirements.

Q: Can I customize the panel configuration — for example, 3 panels instead of 5?
A: Yes. Our OEM/ODM service covers panel count, panel profile (recessed/flat/curved), dimensions, color (any RAL/NCS), core fill, and hardware. We manufacture to your specification — the 5-panel is our signature configuration, not a limitation.

Q: How does the anti-insect treatment work, and does it affect indoor air quality?
A: The treatment is integrated into the core material during manufacturing — not a surface spray that can off-gas or wear off. It is formaldehyde-free and compatible with our E0 eco variant certification. The protection is permanent and does not affect indoor air quality.