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.

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.

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.