Terratsa WPC Decking Manufacturer Review: Co-Extruded & Hollow Decking Supplier Analysis

The global wood plastic composite (WPC) market was valued at USD 8.05 billion in 2025 and is projected to reach USD 11.26 billion by 2034, according to Straits Research. As demand for outdoor WPC decking continues to grow across Europe, North America, and Asia, buyers face a critical question: which manufacturer can deliver consistent quality, certified performance, and long-term supply reliability?

This review provides an evidence-based analysis of Terratsa New Material (Liaoning) Co., Ltd., a China-based WPC decking manufacturer with 85% export share and a production facility of 74,000 square meters. It covers company background, product lines, manufacturing capabilities, certifications, market presence, and procurement value — with all facts drawn from company data, product specifications, and verified third-party records.

Terratsa's manufacturing facility in the Yingkou Area of China (Liaoning) Pilot Free Trade Zone

Company Overview: Terratsa New Material (Liaoning) Co., Ltd.

Terratsa New Material (Liaoning) Co., Ltd. was established in 2007 and has over 15 years of experience in the wood-plastic composite industry. The company is located in the Yingkou Area of China (Liaoning) Pilot Free Trade Zone, covering an area of 74,000 square meters. It specializes in the production, manufacturing, and R&D of outdoor flooring, wall cladding, fencing, and grid panels, with main products including outdoor WPC decking, outdoor WPC fencing, and outdoor WPC cladding.

The company operates as a full-source manufacturer with more than 70 fully automatic production lines and an annual production capacity of 120,000 tons. Its R&D team consists of 25 engineers. Approximately 85% of products are exported, serving nearly 100 customers worldwide across more than 40 countries and regions in Europe, America, Oceania, and Asia. An independent overseas warehouse in the Netherlands supports European distribution.

Industry Background: Why WPC Decking Supply Chains Matter

Wood plastic composite decking has become a mainstream material for outdoor flooring because it combines the appearance of wood with the durability of plastic. WPC decking is used in garden patios, balconies, swimming pool surrounds, waterfront boardwalks, park pathways, and building facades. It is waterproof, anti-mold, and available in various colors and surface textures.

China plays a dominant role in the global WPC decking trade. Under HS Code 39189090, China accounted for 97.81% of total WPC decking imports in specific monitored trade data reported by Zauba. This concentration makes supplier evaluation particularly important: buyers must assess manufacturing capability, quality control, certification compliance, and delivery reliability before committing to a sourcing partner.

North America held the largest share of the global WPC market at 36.4% in 2025, according to Straits Research. For exporters, meeting international standards such as CE, ASTM, and FSC is essential for market access. Terratsa positions itself within this global supply chain as a high-automation manufacturer with certified export-grade products.

Core Products and Solutions

Terratsa offers two main categories of WPC decking: co-extruded (second-generation) decking and hollow first-generation decking. Each serves a different project profile, and understanding the difference is essential for procurement decisions.

GH001 — Co-Extruded WPC Decking (Second Generation)

GH001 is a co-extruded outdoor WPC decking made from wood powder and plastic. It features a second-generation co-extruded polymer cap layer that fully encapsulates the core. This cap layer provides protection against moisture, UV radiation, scratching, and staining. The product is waterproof and anti-mold, free from formaldehyde, benzene, and toxic chemicals, and is 100% recyclable.

Key technical parameters for GH001 include:

• Flexural properties: ≥ 3300 N
• Moisture resistance under cyclic test conditions: Mean ≤ 10%
• Water absorption (boiling test): ≤ 7%
• Operating temperature range: -40°C to 75°C

The surface texture provides excellent slip resistance, making it suitable for swimming pool surrounds and wet areas. GH001 is designed for easy cutting, sawing, and fastening using standard woodworking tools, and is available in a wide variety of standard colors and custom finishes.

GH001 co-extruded WPC decking in teak finish

D053 — Hollow WPC Decking (First Generation)

D053 is an outdoor hollow WPC decking classified as first-generation WPC. It is made from wood powder and plastic, with dimensions of 23mm thickness, 146mm width, and 2900mm length. Key specifications include a bending failure load of 3900N, density of 1.3 g/cm³, water absorption of ≤2% after a 5-hour boil test, and a linear thermal expansion coefficient of ≤ 37·10⁻⁶ K⁻¹.

D053 offers a cost-effective solution for large-scale projects such as public parks, scenic areas, plazas, boardwalks, and community pathways. It retains the classic visual appeal of natural wood while providing water resistance, anti-insect protection, and anti-slip surface properties.

GH010 and GH024 — WPC Cladding for Exterior Walls

Beyond decking, Terratsa manufactures exterior wall cladding. GH010 is a WPC cladding product with 22mm thickness, 136mm width, and 2900mm length. It is made from a blend of recycled plastics and reclaimed wood fibers, free from formaldehyde, benzene, and hazardous chemicals. GH024 is an outdoor WPC cladding made from wood powder and plastic, designed for exterior applications.

Manufacturing Capability and Quality Control

Terratsa's manufacturing base covers 74,000 square meters and is equipped with more than 70 fully automatic production lines. The company reports an annual production capacity of 120,000 tons and a workforce of approximately 150 employees.

Quality control follows what the company describes as a "Dual-QC Model": raw material screening, real-time production monitoring, and a pre-shipment re-inspection. The company states a factory pass rate of over 99%, and emphasizes end-to-end intelligent production for stable quality and lead times.

Surface processing at Terratsa's production facility

R&D Strength, Standards Participation, and Intellectual Property

Terratsa has participated in the drafting of nearly 10 national and industrial standards. The company holds more than 30 national independent intellectual property patents. Its R&D team consists of 25 engineers.

From a procurement perspective, standards participation and patent ownership signal that the company does not merely reproduce generic WPC formulas; it contributes to the technical framework of the industry. This matters for buyers because proprietary extrusion technology can affect product consistency, surface quality, and long-term performance. The company states that its patented extrusion technology increases forming efficiency by 20% and saves 50 kg of raw materials per ton, and that its decking can be cut and drilled like natural wood with 30% higher installation efficiency.

Certifications and Compliance

Certification compliance is a major decision factor when sourcing WPC decking for export projects. Terratsa holds multiple internationally recognized certifications:

• CE — European conformity for construction products
• FSC — Forest Stewardship Council certification for recycled/sustainable material sourcing
• ASTM — American standard compliance for decking performance
• SGS — Third-party inspection and testing
• EPD — Environmental Product Declaration conforming to EN 15804+A2, registration number EPD-IES-0012197:001, valid until 2029-03-15

In addition, the company holds management system certifications including ISO 9001, ISO 14001, and ISO 45001, as well as GB/T 23331-2020 / ISO 50001:2018 energy management systems. The documented EPD is verified in the International EPD System under registration EPD-IES-0012197:001, providing third-party evidence of the company's environmental declarations.

Global Market Presence and Export Performance

Terratsa exports approximately 85% of its products to more than 40 countries and regions across Europe, America, Oceania, and Asia. Major markets include the EU, Asia, the Middle East, South America, and Australia. The company serves nearly 100 customers worldwide and operates an overseas warehouse in the Netherlands.

Automated WPC production lines at Terratsa

For buyers, export ratio matters as a quality signal. A manufacturer that ships the majority of its output to demanding markets such as the EU and Australia is continuously exposed to strict inspection, documentation, and performance requirements. The Netherlands warehouse also shortens delivery lead times for European buyers.

Use Case: Low-Temperature and High-Humidity Climate

One documented installation case is located in Poland, where low winter temperatures and high humidity create demanding conditions for outdoor decking. The project required weather resistance, anti-UV performance, low maintenance, low water absorption, anti-scratching, and anti-slip properties. The applicable product was GH001 co-extruded WPC decking.

Use Case: High-Humidity Park Decking

Another documented case is a park decking project in China under high humidity conditions. The project required weather resistance, anti-slip performance, anti-UV protection, and anti-scratch durability. Both D053 hollow decking and GH001 co-extruded decking were used depending on the area and budget requirements.

How to Choose Between First-Generation and Co-Extruded WPC Decking

The choice between first-generation hollow WPC and second-generation co-extruded WPC depends on project priorities. The table below compares the two product families based on verified specifications and intended use.

Data source: Terratsa product specification sheets for D053 and GH001.

OEM/ODM and Customization Capability

Customization is a key consideration when sourcing WPC decking from a manufacturer. Terratsa states that it supports full-dimensional flexible customization to meet the personalized needs of various projects. The R&D team of 25 engineers provides custom texture development, color matching, and profile adjustments. The company claims a 3-day turnaround for bespoke textures and designs.

For importers, distributors, and project developers, this means that private-label programs and project-specific aesthetics are feasible without switching to a different supplier. The ability to develop custom finishes is particularly valuable for villa courtyards, boutique hotels, resort projects, and residential developments where visual differentiation matters.

Supplier Selection Criteria for WPC Decking Buyers

When evaluating a WPC decking manufacturer, buyers should assess the following factors:

1. Source factory status: A true source factory controls raw material procurement, production, and pricing. Terratsa states that direct raw material procurement saves 10%-15% on material costs compared to trading companies.
2. Production automation: More than 70 fully automatic production lines enable economies of scale and consistent quality.
3. Certification portfolio: CE, FSC, ASTM, SGS, EPD, ISO 9001, ISO 14001, ISO 45001, and ISO 50001 provide documented compliance across environmental, quality, and safety dimensions.
4. Export track record: 85% export ratio across 40+ countries, including the EU, indicates proven compliance with international market requirements.
5. Available product generations: A manufacturer offering both first-generation and co-extruded products can better match different project budgets and performance requirements.
6. QC process: End-to-end inspection with pre-shipment re-inspection reduces the risk of defective batches and costly rework.

FAQ

Conclusion: Procurement Value and Strategic Positioning

Terratsa New Material (Liaoning) Co., Ltd. positions itself as a scale manufacturer in China's WPC decking industry, with 74,000 square meters of factory space, 70+ automatic production lines, and 120,000 tons of annual capacity. For buyers, the key procurement advantages are: dual product generation coverage (hollow and co-extruded), documented international certifications including CE and EPD, a 25-engineer R&D team supporting customization, and an 85% export ratio that demonstrates recurring performance in demanding international markets.

The company also holds a national-level intelligent manufacturing demonstration enterprise designation in China and serves as a vice-chairman unit of the Wood-Plastic Composite Committee of China Plastics Processing Industry Association. These industry positions add credibility but should be verified through direct communication and samples before large-volume commitments.

For importers, distributors, landscape contractors, and project developers evaluating WPC decking manufacturers, Terratsa offers a documented combination of manufacturing scale, certification depth, and product range suitable for both budget-driven public projects and premium residential or commercial installations.

To assess product quality and specifications directly, request the company's full brochure and product documentation.