
Suitable for B2B and Commercial Projects
Premium Composite Round Decking
Composite Round Decking - Curved, Durable, Low-Maintenance, Splinter-Free, Aesthetic
Composite Round Decking is a specialized type of decking board made from a blend of recycled wood fibers and plastics, uniquely designed with a rounded or curved profile. Unlike traditional flat boards, its shape is engineered specifically for building smooth, seamless curved decks, outdoor stair treads, and decorative architectural features without the need to cut and join multiple straight boards.
Discover our Advantages
Advantage Category | Specific Performance |
| Superb Weather Resistance | • Excellent UV resistance, resists fading and chalking. • 100% waterproof, will not rot, mold, or warp. • Withstands extreme temperature changes. |
| Extreme Durability | • High resistance to scratches, stains, and wear. • Strong impact resistance and load-bearing capacity. • Resists dents and heavy foot traffic. |
| Extremely Low Maintenance | • No need for painting, sealing, or staining. • Easy to clean—requires only occasional soap and water. • Retains its appearance without ongoing effort or cost. |
| Eco-Friendly & Aesthetic | • Made from recycled wood and plastic fibers. • Features realistic wood grain textures and a variety of color options. • Provides a consistent look without knots, splinters, or cracks. |
| 25-Year Service Life | • Long-term performance and structural integrity. • Backed by a limited warranty, guaranteeing resistance to fading, staining, and structural failure. |
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Explore WPC Outdoor Co-extrusion Round Decking Solutions






Matching Accessories of Composite Round Decking












Discover the Best Applications of Supereco Composite WPC Decking

Join global customers in choosing Supereco, for more favorable WPC decking prices and better WPC decking quality.
Why Choose Supereco WPC Composite Decking?
The largest WPC Decking manufacturer in northern China
We was established in 2006 and is one of the first wood plastic enterprises in China’s WPC industry. The company covers an area of 80,000 square meters and has 155 employees.
The global annual sales in 2024 is RMB 300 million , and the production capacity is expected to reach 60,000 tons in 2026, with an output value of more than RMB 500 million. China’s plastic wood industry ranks top 3 and ranks first in the north.
Strong and Professional WPC Factory
Professional R&D Experimental Team
Professional Quality Inspectors
Internationally Leading WPC Decking Production Technology
At present, the WPC composite decking flame-retardant products of the company are its flagship products, and the technological content of the products leads the world. The American standard flame retardant have passed grade A, European standard flame retardant have passed grade B and Grade D with SGS and Intertek testing.

3.6m Composite Deck Board Waterproof
Introducing our 3.6 m Composite Decking Boards,a revolutionary product designed to transform your outdoor spaces into stunning, low-maintenance areas. These boards are ideal for patios and balconies, offering a durable and attractive solution that withstands high humidity and heavy traffic.

Bicolor Composite Decking
The Bicolor Composite Decking is a premium outdoor flooring solution that combines elegance and sustainability.Designed for both residential and commercial Project use, it provides a durable and visually striking surface that enhances any outdoor area.

Corrosion Resistance and Radiation Resistance Upgraded ‌
The second generation of composite flooring increases a high density protective Layer on the surface of the traditional WPC substrate through Co-extrusion layer. This design greatly improves the resistance to UV and chemical corrosion ‌, especially suitable for swimming pools, coastal and other high salt spray or high humidity environment.
Rich Colors and Types, Support OEM and ODM
Customized for customers. Customize exclusive products for customers request.Functional product development-highly wear-resistant with super color-mixing products.The product range is complete (More than 200 moldings).
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International Certification System Completed, Worry-Free Cooperation
The company has passed ISO9001 quality management system, ISO14001 environmental management system , intellectual property management system , EU CE certification , FSC forest management system certification, US ICC – ES certification, and EU EPD certification.

Obtaining Intertek certification for WPC decking ensures verified quality and safety, boosting buyer trust and global search visibility for professional B2B markets.

95% recycled content,Fully recyclable at end of life,Low carbon footprint manufacturing,Phthalate-free composition.

Consistent product quality, Efficient manufacturing processes, Customer-focused improvements, Compliance with international regulations.

CE marking forEuropean markets, 15-year limited warranty, Third-party load testing certification.

 WPC decking is proven to be durable, waterproof, anti-UV, and eco-friendly, making it ideal for outdoor applications like gardens, balconies, and pool decks
20 Years of Export Trade Experience, Serving 1000+ Outdoor Projects
The products are sold to more than 70 countries around the world, and more than 1,500 containers are exported worldwide each year. The main markets are North America, Europe, Australia, Japan and South Korea.
20-Year B2B WPC Decking Specialist. We support OEM, ODM & custom samples. Serving wholesale and commercial project clients exclusively.
MOQ: 1x 20ft Container.
Which B2B commercial projects are suitable for using Composite Round Decking?
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How to Install WPC Composite Decking?


WPC Decking

Edge Banding

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Frequently Asked Questions
Our wpc decking is made of 35%HDPE+PP (polypropylene plastic), 60%wood fiber and 5%additive agents.
Composite decking and wpc products are widely used outdoor, such as gardens, parks, seaside path, villa courtyard, balcony.
First of all, the wood plastic materials are 100% recyclable, it is long-lasting, stable for the outdoor conditions, like sun exposure, rain, temperature ariations, Composite decking (WPC decking) and other WPC products are waterproof, fire proof, corrosion resistant, weather resistant, pressure resistant, and requires little maintenance, so composite decking and other wpc products are suitable to be used outdoor.
With proper installation and maintenance, WPC Decking can last for 20 years or more, significantly longer than traditional wood decking.
All Wood plastic composite products will fade when exposing to sun and weathering. In order to decrease the degree of fading, we add Anti-UV additive agent, which greatly reducing the degree of fading. At the first 3 months after being put outside environment, composite decking will fade 5-10% percent of original color, but it doesn’t influence its performance, and makes the decking look more naturally like color of real wood. Later, the color will stay in a stable situation.
WPC products have good performance in outdoor environment, and they don’t need special maintenance. Customers can clean WPC products periodically with soapy water.
The gap between each joist should be no more than 35cm (30cm gap is good). Besides, because of drainage, cleaning, and thermal expansion and contraction, 3mm gap should be left between each edge of each board. (As shown in the picture)
Standard length:2.2m /2.9m/ 3.6m We recommend customers 2.2m match 3.6m or 2.9m because these lengths can use the space of the container effectively without waste, which is practical for customers.
We have CE, FSC, ISO14001, ISO9001, Intertek, ASTM, CEC certifications and 12 patents.
We use three-ply wood pallets and PVC soft film.
We can provide a sample of the product for you to test. The sample can be transported by sea, land and air.
For sample order, customers can choose sea or air freight. For complete container orders, sea transportation is the best option. We normally provide our customers FOB price in USD. Door-to-Door (Ship to your shop's address) or CIF price can be provided at customer's request. Shipping port is Qingdao or Lianyungang.
Yes, we can put a logo on our products.
Accept payment via T/T (Bank transfer), Western Union, and PayPal,Accept L/C at sight. For small order value, please pay us 100% in advance. For higher order value, we accept 30% deposit and balance T/T against copy of Bill of Lading or L/C at sight.
The density of our wpc decking is 1.3%-1.4%(1300-1400kgs/cbm). The strength of the hollow one is about 320kgs (Based on the space between the keels of 35cm, the decking surface can bear the weight of 320kgs.) and the strength of the solid one is 400kgs-500kgs.(Based on the space between the keels of 35cm, the decking surface can bear the weight of 400kgs-500kgs.)
When we install the flooring, firstly the keels are fixed in the ground surface with the T-clip and then we put the solid decking board on the keels. You know the wpc decking board can't be put on the ground surface directly. It can effect of the planeness of the flooring surface after installation. It is not good to control the drainage of the bottom, because the wpc decking board is mainly used for outdoor, which rains a lot. So, keels must be used to hold the solid decking board when installed.
No. You need to take the clips of both sides of the broken decking and then take the broken decking out, it's easy.
Our MOQ is usually 20GP (1400 Meters or 200sqm or 500pcs, depending on your address)
For a size 22 Ñ… 140 x 2900 mm, for example.
We can load 935sqm (2304pcs) of 22x140x2900mm, joist and accessories in 20’ container.
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