High-performance internal doors optimized for the unique climate and environmental standards of South America's largest economic hub.
As the primary financial and industrial axis of Latin America, the metropolitan area of São Paulo is experiencing unprecedented vertical real estate expansion. However, high-density residential towers in Pinheiros, Vila Olímpia, and Moema face a distinct architectural challenge: rapid environmental transition. The subtropical highland climate yields high relative humidity interspersed with sudden dry spells, creating severe dimensional stability issues for classic solid wood or standard MDF interior doors.
Furthermore, coastal sub-regions like Santos and Guarujá expose building structures to humid marine atmospheres where moisture infiltration leads to warping, delamination, and fungal growth within standard wood assemblies. PVC Veneered WPC (Wood Plastic Composite) doors address these structural failures head-on. By fusing organic wood fibers with a high-density polyvinyl chloride polymer matrix, they achieve complete environmental stability, offering a zero-warp guarantee even in high-humidity zones.
Unlike solid timber, which contracts and expands based on seasonal moisture variation, PVC Veneered WPC maintains a linear expansion rate of less than 0.1% under saturated humidity testing (ISO 4892-2). This dimensional accuracy is critical for modern door frames equipped with integrated acoustic seals.
Globally, architectural design mandates are shifting away from resource-intensive solid woods and toxic resin-bonded particle boards. The international green building framework (including USGBC LEED and Brazilian GBC benchmarks) rewards materials that mitigate logging, optimize waste utilization, and avoid volatile formaldehyde emissions.
Our premium WPC profiles use recycled agricultural wood byproducts and virgin polymer resins. They are free from urea-formaldehyde, satisfying E1 and E0 emission limits. Additionally, the high-precision extrusion process eliminates the inner structural voids standard in cheap hollow core doors, creating a dense, cell-like internal web. When coated with high-performance PVC foils via PUR hot melt lamination, these doors provide a clean, modern aesthetic with long-term resistance to impact, scratches, and household chemicals.
Zhejiang Larsom Door Co., Ltd. is a professional manufacturer specializing in the research, development, production, and global sales of high-quality security doors, armored doors, steel-wood doors, and customized entrance door solutions.
Since its establishment, Larsom Door has been committed to providing customers around the world with safe, durable, and stylish door products. Today, the company operates a modern manufacturing facility covering more than 16,000 square meters, supported by an experienced team of over 160 skilled employees. With advanced production management and efficient manufacturing systems, our daily production capacity exceeds 200 sets of premium doors, enabling us to meet both large-scale projects and customized orders with reliable delivery.
To continuously improve product quality and manufacturing efficiency, Larsom Door has invested heavily in advanced automated production equipment, including CNC laser cutting machines, CNC bending machines, automatic welding systems, high-speed turret punching machines, automatic sanding machines, and modern powder coating production lines. These advanced facilities, combined with strict quality control procedures, ensure that every door meets international quality standards.
Quality is the foundation of our business. Larsom Door strictly implements comprehensive quality management throughout every production process, from raw material selection to final inspection. Our products comply with international quality standards and have earned an excellent reputation among customers worldwide.
Today, Larsom Door exports its products to more than 130 countries and regions, including Europe, the Middle East, Africa, South America, Southeast Asia, and Central Asia. Our major customers include building contractors, real estate developers, wholesalers, distributors, and importers. With rich experience in OEM and ODM manufacturing, we provide flexible solutions for customers seeking customized branding and product development.
Every door undergoes a structured fabrication process inside our 16,000㎡ facility, leveraging CNC machinery for precise dimensions.
Substrate composite layers are aligned and calibrated under high pressure to ensure mechanical density and structural flat surfaces.
Precision splicing guarantees smooth, gap-free panel joints, preventing core delamination over years of operation.
CNC sanding heads profile the edges to millimeter-level tolerances, preparing surfaces for the PVC lamination process.
Automated routing routers engrave custom architectural grooves and patterns directly into the core material.
UV curing ovens dry and set the outer protective varnishes, forming a strong barrier against scratching and chemical wear.
Heavy-duty industrial shearing machinery processes incoming structural panels to custom project heights and widths.
High-precision CNC cutting systems process structural hardware and lock-pocket details with absolute dimensional control.
Advanced hydraulic press brakes shape raw steel reinforcing components to build high-durability internal frames.
Automated multi-stage punching systems finalize mounting holes, hinge slots, and auxiliary lock routes.
Our scale allows us to fulfill large-scale high-rise developments in Latin America with consistent batch quality.
WPC doors are engineered for specific zones in modern South American construction.
In coastal cities like Guarujá and Santos, typical wood door cores absorb airborne salinity and moisture, leading to mold growth and core expansion. Larsom's PVC Veneered WPC doors are engineered to handle high humidity, delivering a reliable solution for bathrooms, laundry rooms, and coastal bedrooms.
In corporate areas like Avenida Paulista and Faria Lima, office doors undergo heavy daily use. WPC's high density provides reliable resistance to physical impacts, scratches, and cleaning products, while maintaining a premium appearance with wood-grain veneer options.
For developers in Moema and Pinheiros, our internal WPC door kits offer reliable acoustic performance, matching frame systems, and custom designs that integrate with high-end modern interior aesthetics.
How our material formulations align with regional environmental codes and architectural trends.
Our WPC profiles are manufactured using a high-temperature extrusion process that blends wood flour and thermoplastic polymers. This structure provides high structural strength and durability, shielding the door from warping, termite infestation, and decay under humid conditions.
We use reactive Polyurethane (PUR) hot-melt adhesives from Germany to bond the PVC veneers to the WPC core. This creates a highly heat-resistant, waterproof bond that prevents peeling or blistering even when exposed to direct sunlight or moisture.
Select from our certified range of interior door styles. Each model can be customized to match specific regional building requirements and framing standards.
Navigating Brazil's customs processes (Receita Federal) and compliance frameworks requires technical coordination and appropriate documentation. Zhejiang Larsom Door provides complete logistic support to ensure hassle-free clearance through the Port of Santos.
Contact our technical sales team for engineering support, CAD dwg drawings, or container pricing details.
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Get in touch with Zhejiang Larsom Door's specialized export desk today. Receive CAD drawings, material samples, and detailed pricing for your development projects in São Paulo.
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Larsom Door