Composite Square Decking Manufacturer

CE | ISO | SGS | FSC Certified | For B2B & Commercial Projects

Suitable for B2B and Commercial Projects

Premium Composite Square Decking

Composite Square Decking - Modern, Durable, Low-Maintenance, Splinter-Free, Architectural

Composite Square Decking is a contemporary decking profile made from a blend of wood fibers and recycled plastics, featuring a distinct square or rectangular edge. This modern alternative to traditional grooved or rounded boards is specifically designed to create sleek, architectural lines and a clean, uniform appearance for decks, screens, and other structures.

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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BRANCHES AND PARTNER COMPANIES

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INTERNATIONAL MARKETS REACHED

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PRODUCTION

LINE

SUPPORT OEM&ODM

Explore WPC Outdoor Co-extrusion Square Decking Solutions

composite square decking 145x22.5mm 1
composite square decking 145x22.5mm 2
composite square decking 145x22.5mm 3
composite square decking 145x22.5mm 4

Matching Accessories of Composite Square Decking

keel
keel
lshape
Lshape
butterfly clip
Lshape
Plastic T-clip
Plastic T-clip
three claws clip
Three Claws Clip
start clip
Start Clip
lssk 01
LSSK-01
lssk 11
LSSK-11
lsco 11p
LSCO-11P
lsco 12p
LSCO-12P
adjustable pedstal
Adjustable Pedstal
all kinds of screws
All Kinds of Screws

Discover the Best Applications of Supereco Composite WPC Decking

best applications for composite round 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
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
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
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).

Surface treatment
composite decking eco 2.0
ECO-2.0
composite decking eco 2.1
ECO-2.1
composite decking eco 2.2
ECO-2.2
composite decking eco 2.3
ECO-2.3
composite decking eco 3.0
ECO-3.0
composite decking eco 3.1
ECO-3.1
composite decking eco 3.2
ECO-3.2
Colors choice
Lightly Mixed Colors
lightly mixed colors 3
lightly mixed colors 2
lightly mixed colors 1
lightly mixed colors 5
lightly mixed colors 6
lightly mixed colors 4
lightly mixed colors 9
lightly mixed colors 8
lightly mixed colors 7
Strongly Mixed Colors
strongly mixed colors 3
strongly mixed colors 2
strongly mixed colors 1
strongly mixed colors 4
strongly mixed colors 5
strongly mixed colors 6
strongly mixed colors 9
strongly mixed colors 8
strongly mixed colors 7
Solid Colors
grey
Grey
black
Black
chocolate
Choco-late
dark brown
Dark Brown
light teak
Light Teak
dark teak
Dark Teak
red
Red

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.

supereco intertek
Intertek Certification

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

supereco fsc
Forest Stewardship Council Certified

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

supereco iso9001
ISO 9001 Certified

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

supereco ce
CE Marking

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

supereco sgs
SGS Certified

 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 Square Decking?

WPC Decking Types Overview
Decking Type
  • Composite Square WPC Decking
Key Features
  • Enhanced structural strength
  • Efficient water drainage
  • Modern aesthetic
Ideal Application Scenarios
  • Public parks
  • Commercial plazas
  • Outdoor areas that require a blend of durability
  • Modern design and efficient water management
Target B2B Clients
  • Municipalities
  • Urban planners
  • Commercial landscape architects

How to Install WPC Composite Decking?

Installation Guide of Classic WPC Decking
WPC Decking
WPC Decking
Edge banding
Edge Banding
Snap
Snap
Snap
Snap

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.

Explore Our More Products

tradition classic wpc decking
Classic WPC Decking
Composite Decking
Composite WPC Decking
Composite Wall Cladding
Composite WPC Cladding
Composite Fencing
Composite WPC Fencing
Outdoor Leisure Chair
Outdoor Leisure Chair

Contact Supereco

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Contact Details

Phone:

+86 18954911538

Email:

inquiry@superwpc.com

Address:

No.31, Beijing Road, Linyi, Shandong, China

Opening Hours

Monday - Friday:

09:00AM - 09:00PM

Saturday:

09:00AM - 07:00PM

Sunday:

10:30AM - 05:30PM

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