Explore our engineered range of high-performance entry solutions, smart revolving systems, and heavy-duty composite designs optimized for modern architectural specs.
Zhejiang Larsom Door Co., Ltd. is a high-caliber industrial manufacturer dedicated to the R&D, advanced fabrication, and global export of security entrance doors, armored systems, steel-wood engineering doors, and custom PVC composite solutions. Since our founding, we have focused on structural durability and technological alignment for real estate and industrial builders.
Equipped with a modern facility spanning over 16,000 square meters, Larsom runs state-of-the-art sheet metal processing lines, vacuum thermofusion chambers, and high-precision CNC centers. This digital workflow supports our output of premium security doors, allowing us to maintain competitive delivery schedules and customized OEM/ODM specifications.
In modern architecture, traditional raw timber faces severe structural limits. High humidity, UV degradation, biological decay, and dimensional instability make solid timber a challenging material for high-traffic projects. Consequently, global builders are turning to Wood Plastic Composites (WPC) and PVC finished composite doors.
Engineered PVC finished composite doors represent an advanced material blend. They combine fine wood particulates with polyvinyl chloride polymers. This cross-linked matrix undergoes high-pressure extrusion and thermofusion with premium PVC films. As a result, the doors mimic the natural grain aesthetics of hardwood while offering absolute resistance to water, rot, warping, and insect damage. For architects, contractors, and real estate developers, this evolution yields a zero-maintenance product that satisfies strict green building codes and offers decades of performance.
By preventing rot, moisture absorption, and thermal cracking, composite doors eliminate repainting, sealing, and alignment adjustments. This delivers a low lifecycle cost for large housing developments and corporate complexes.
Our composite cores utilize dense multi-chambered profiles or mineral-wool structural fillers. They exhibit sound reduction index (Rw) ratings up to 35dB, significantly outperforming hollow-core timber alternatives.
Compliant with international E0/E1 emission limits, Larsom's finished PVC doors release no volatile organic compounds (VOCs). This preserves indoor air quality in medical, educational, and residential spaces.
B2B procurement professionals, commercial builders, and import developers encounter several key risks when sourcing structural doors globally:
Larsom Door's Strategic Solution: We implement rigorous quality control at every phase of manufacturing. From selecting wood fibers and PVC resins to calibrating automated CNC tolerances to 0.1mm, we guarantee reliable performance. Every door panel is cured and tested to resist extreme temperatures, ensuring a smooth installation process from the container directly to the frame.
At Larsom Door, our manufacturing processes are rooted in Industry 4.0 principles. We utilize automated production machines that ensure precision, consistency, and high output. By minimizing human error, we deliver reliable tolerances, robust bonding strength, and consistent finishes.
Our heavy-duty CNC systems process steel and wood panels seamlessly. The production line includes precise shearing, CNC laser cutting, automatic bending, and multi-axis engraving. Additionally, our dust-free UV coating line provides superior scratch and UV resistance, protecting door panels from yellowing and peeling under direct sunlight.
Ensures uniform adhesion and high structural stability across composite layers.
Integrates the internal framing with engineered core elements without structural gaps.
Prepares edges to guarantee seamless PVC wrapping and moisture-proof seals.
Enables intricate, modern, and customized visual patterns with high precision.
Applies a durable protective layer that resists scratches and prevents fading.
Cuts sheet metals to strict specifications for our armored and steel composite lines.
Uses digital schematics to cut raw sheets with minimal material waste.
Forms reinforced edges and structural rebates for anti-theft profiles.
Creates precise installation holes for hardware, locksets, and hinge pins.
Our PVC finished composite doors are designed to meet the technical demands of diverse commercial and residential applications:
Clear, direct insights to assist engineering teams and procurement offices with structural and technical specifications.
Explore more high-performance entrance systems, security options, and waterproof timber-composite designs engineered for global trade partners.
Larsom Door
