Engineered for extreme performance, structural security, and moisture resilience across modern luxury developments.
Traditional building design has long suffered from a fundamental material limitation: the vulnerability of timber to moisture, rotting, and insect infestation, and the susceptibility of metals to oxidation and corrosion. Zhejiang Larsom Door Co., Ltd. addresses this critical vulnerability head-on by engineering structural Wood Plastic Composite (WPC) door systems.
Our proprietary extrusion process merges high-density thermoplastic polymers (PVC) with ultra-fine, kiln-dried lignocellulosic fibers. The resulting matrix encapsulates the wood components, neutralizing wood's natural capillary action and eliminating moisture absorption down to less than 0.5% in standardized water immersion tests.
Deploying industrial-scale automation and smart CNC tooling matrices to ensure consistency, speed, and precision.
Our infrastructure relies on advanced automated workflows, utilizing CNC laser cutters, high-speed turret punching complexes, automated edge-sanding lines, and computerized pressing systems. By standardizing these technologies, Larsom Door minimizes tolerances to less than 0.2mm, assuring perfect alignment, ease of installation, and reliable structural behavior for the lifetime of the building.
A direct comparison of Larsom WPC Systems against typical wood, PVC, and MDF alternatives.
| Performance Vector | Larsom WPC Doors | Traditional MDF Doors | Solid Timber Doors |
|---|---|---|---|
| Moisture Absorption (24h Immersion) | < 0.5% (Non-swelling) | > 12% (Extreme swelling/Delamination) | Dynamic equilibrium variation (Warping danger) |
| Biological Resistance | Immune to termites, fungal rot, and mildew | Highly prone to rot and mold growth | Requires periodic biocide coatings |
| Formaldehyde Emission | E0 / EN 717-1 Compliant (Zero-added) | Varies, often contains UF resins | Natural trace amounts only |
| Flame Propagation | Class B1 (Self-extinguishing) | Class B3 (Combustible) | Highly combustible unless treated |
| Acoustic Damping (STC) | Up to 38 dB (Multi-chamber core) | 28-32 dB depending on core density | 30-35 dB depending on wood density |
How our custom engineered composite systems solve infrastructure pain points across different sectors.
Saltwater laden air and relative humidity over 85% destroy conventional wood and metal components. Our WPC composite doors maintain structural rigidity and finish integrity indefinitely in challenging coastal settings.
Designed with internal honeycombed ribs or dense solid-fill configurations, our WPC range offers high impact resistance, making them ideal for schools, public transit facilities, and hospitals.
With integrated perimeter seals and custom multi-cavity interiors, our designs isolate noise (up to 38 dB) and prevent thermal transfer, lowering building operational HVAC loads.
Navigating international building standards requires extensive engineering expertise. Zhejiang Larsom Door Co., Ltd. supports global clients with full documentation compliance. Every door batch complies with CE Mark standards, verifying conformity with European safety, health, and environmental protection requirements (EN 14351-1).
Whether supplying residential developments in Oman, hospitality projects in the Middle East, or residential subdivisions in Europe and North America, we tailor the mechanical specifications and density profiles to match regional requirements. We provide flexible OEM/ODM options to streamline global projects.
Our pre-machined preparation option allows customers to specify lockset routes, hinge placements, and peephole dimensions directly from CAD drawings, cutting installation times by up to 60% on site.
Inside Larsom Door's automated CNC production facility.
Aligning future technology with low-carbon policies and advanced product architecture.
Transitioning to plant-based, non-fossil monomer binders to cut our carbon footprint while retaining the same high density and waterproof characteristics.
Designing doors with internal conduits for low-voltage routing, allowing seamless installation of smart lock systems, hidden cameras, and biometric components.
Implementing closed-loop recycling programs to reclaim construction offcuts and post-consumer WPC products, transforming them into new high-grade composite materials.
Technical answers to key procurement and material science questions.
Discover our wider range of high-security, fireproof, and residential door designs.
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