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140*23mm High Rigid Traditional Composite WPC Decking Weatherproof

Basic Properties
Place of Origin: Zhejiang,China
Brand Name: Haining Vanshine
Certification: SGS,ISO
Model Number: FS-140-23
Trading Properties
Minimum Order Quantity: 200meters per color or negotiation
Price: $1.65-2.88,Customized
Payment Terms: Western Union,T/T,D/P,D/A,L/C
Supply Ability: 100000pcs per week
Product Summary
140*23mm high rigid traditional composite WPC decking offers extreme weatherproof integrity (-40°C to desert heat), high flexural modulus preventing sagging, uniform thermal stability, and 20+ year longevity. Features UV resistance, fireproof Class B1, water resistance, multiple colors, and eco-friendly recycled materials. Certified for outdoor applications including decking, patios, and balconies.

Product Details

Highlight:

140*24mm Composite WPC Decking

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Composite WPC Decking Weatherproof

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High Rigid WPC Decking

Dimensions: 140*23mm
Surface Treatment: Sanded, Brushed, Embossed, Grooved
Material Composition: Recycled Materials, Recyclable
Fire Resistance: Class B1 Or Equivalent
UV Resistance: Yes, UV Stabilized
Structure: Hollow
Water Absorption: ≤1.0%
Static Bending Strength: ≥26.0 MPa
Elastic Modulus: ≥3000 MPa
Minimum Concentrated Load: ≥3400 N
Surface Abrasion Resistance: ≤0.15g/100r
Anti-Slippery Value: ≥35
Product Description
140×23mm High Rigid Traditional Composite WPC Decking Weatherproof
Product Summary

This professional-grade weatherproof, high rigid traditional composite WPC decking is engineered for extreme temperature fluctuations and high-stress structural environments. By optimizing the rigid ratio of crystalline polymers and refined wood fibers, it achieves an incredibly low coefficient of thermal expansion, preventing brittle cracking in arctic cold or tropical heat while delivering upgraded flexural modulus. This solution directly addresses concerns over thermal deformation and sagging, providing a highly stable engineering flooring system.

Product Features
  • Extreme All-Weather Weatherproof Integrity: Engineered to survive hostile natural environments, our traditional WPC decking maintains structural integrity from -40°C freezing temperatures to scorching desert heat without becoming brittle or degrading.
  • High Rigid Structural Flexural Modulus: Featuring a dense, reinforced composite core formulation, these boards resist gravitational creep, structural warping, and "wavy deformation" common in low-grade plastics, maintaining a perfectly flat walking surface.
  • Uniform Thermal Stability Design: With completely uniform polymer-to-wood ratio from surface to core, the material expands and contracts at a predictable, balanced rate, preventing internal structural shearing or delamination.
High Rigid Traditional Composite WPC Decking technical illustration
Technical Specification
NO. Test Items Requirements Results Test Methods
1 Surface abrasion resistance,g/100r ≤0.15,and the paint film is not worn through 0.100 ✔pass
2 Colour fastness to light, class Gray Card≥4 4 ✔pass
3 Formaldehyde emission,mg/m³ ≤0.05 Not detected ✔pass
4 Minimum concentrated load, N ≥3400 3562 ✔pass
5 Static bending strength,MPa ≥26.0 27.2 ✔pass
6 Elastic modulus, MPa ≥3000 4502 ✔pass
7 Water absorption, % ≤1.0 0.9 ✔pass
8 Falling hammer impact at low temperature No crackat thetemperature of -10°C pass ✔pass
9 Anti-slippery value ≥35 37 ✔pass
Certification
Product certification and quality standards
How to Install
1. Subframe Spacing (Max 350mm)

Install your joists (wood or aluminum) on a level, draining foundation. Joist spacing must be a maximum of 350mm center-to-center to prevent the deck from sagging.

2. Lock the First Board

Screw Starter Clips into the edge of each joist. Slide the groove of your first WPC board firmly into these clips to lock the outer perimeter without surface screws.

3. Install Center Clips

Slide Hidden Fastening Clips into the inner groove of the board at every joist intersection and screw them down. These clips automatically create the mandatory 5mm side-to-side expansion gap. Slide the next board into place and repeat.

4. Manage End-to-End Joints (Double Joists)

Where two board ends meet:

  • Must use Double Joists: Each board end must rest on its own independent joist and clip.
  • Leave an Expansion Gap: Leave a 5mm to 8mm end-to-end gap so the boards can expand in summer without buckling.
5. Perimeter Wall Gap & Fascia
  • Wall Clearance: Always leave a 10mm gap between the decking and any brick wall or solid structure.
  • Finishing: Cover exposed hollow edges by screwing on a WPC Fascia Trim around the perimeter.
WPC decking installation diagram and fastening system
Application Gallery
WPC decking application in residential setting WPC decking installation in commercial space WPC decking used in outdoor patio area WPC decking poolside installation
Colors
Available color options for WPC decking Additional color variations for WPC decking
Section Designs
WPC decking cross-section design WPC decking profile design WPC decking structural design WPC decking edge design WPC decking connection design WPC decking installation design WPC decking finishing design
Our Factory
Manufacturing facility overview Production line and equipment Quality control process Factory infrastructure and capabilities
FAQ
Q1: How can an uncapped traditional WPC decking be truly weatherproof against ice and deep snow?
A1: Ice damage occurs when water penetrates a material, freezes, and expands. Our traditional WPC decking achieves its weatherproof status through high-pressure encapsulation of the wood fibers. Water cannot easily soak into the dense composite, meaning freeze-thaw cycles cannot create internal frost-wedging or brittle cracking.
Q2: What engineering parameters make this composite board a high rigid product?
A2: The high rigid rating is achieved by fusing high-crystallinity polymers with premium, long-strand wood fibers. This specific compound formula maximizes the flexural modulus and tensile strength, allowing the traditional decking to support massive structural weight across its spans without experiencing permanent sagging.
Q3: Will the weatherproof and rigid properties decline after 10 or 20 years of intense UV sun exposure?
A3: No. Unlike budget plastics that yellow, oxidize, and lose their rigidity under the sun, our weatherproof composite matrix is heavily integrated with advanced, long-lasting anti-aging agents and anti-oxidants. This keeps the core material flexible yet structurally rigid, ensuring it maintains its load rating for its 20-25+ year life.
Q4: Does a high rigid WPC deck allow installers to save money on the underneath joist spacing?
A4: While our high rigid traditional decking provides exceptional resistance to bending, building codes and engineering warranties strictly require following standard frame support parameters (typically 30cm to 35cm joist spacing for hollow profiles, and up to 40cm for solid profiles). This ensures maximum safety against extreme point-loads.
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