A European client recently purchased samples to test our second-generation co-extruded WPC decking (138×23mm, round-hole profile). The client was particularly interested in the decking's compressive strength and load-bearing capacity. To better meet the client's needs, our factory conducted tests and provided clear, data-backed results.

138×23mm Second-Generation Co-extruded WPC Decking

The product tested by the client is our 138×23mm round-hole co-extruded WPC decking.

Compared to traditional WPC decking, the second-generation co-extruded structure features a protective outer layer surrounding the core material. This design enhances weather resistance while maintaining a natural wood appearance.

The round-hole structure reduces the material's weight while maintaining structural integrity, making the decking easier to handle and install.

For European distributors and project contractors, the combination of co-extrusion technology, structural strength, and outdoor durability makes this WPC decking suitable for a wide range of applications.

Load-Bearing Test: The Data Speaks

To evaluate the structural performance of the 138×23mm WPC decking, we conducted a load-bearing test with a span of 400mm.

The test results are as follows:

Decking Dimensions: 138×23mm

Decking Type: Second-generation co-extruded WPC decking

Structure: Round-hole

Test Span: 400mm

Maximum Load: 5,278N

Equivalent Load: Approx. 538kgf

Under the test conditions, the decking withstood a maximum load of 5,278N, equivalent to approximately 538kgf.

These results provide the client with a direct way to understand the product's structural performance. Rather than simply describing the decking as "sturdy" or "strong," we prefer to provide measurable test data.

For B2B buyers, distributors, and project clients, actual test data serves as a valuable reference when comparing different WPC decking suppliers. The Importance of the 400mm Span

This test utilizes a 400mm span, providing a practical benchmark for evaluating the structural performance of the decking under a specific support spacing.

When installing WPC decking, factors such as joist spacing, installation methods, board structure, temperature, and load distribution all influence actual performance. Therefore, test results should be viewed as data from laboratory or controlled testing rather than an absolute guarantee that every installed deck will withstand the exact same concentrated load.

For professional projects, we recommend determining the appropriate joist spacing and installation structure based on the specific application and local construction requirements.

This is precisely why we provide technical documentation and installation recommendations to overseas clients before they place bulk orders.