WPC HOLLOW JOIST FOR UNDER SUPPORT
50x30mm
35% environmental plastic materials(Grade A Recycled HDPE )
55% natural wood fiber
10% chemical additives. (Anti-UV agent, Anti-oxidation agent, stabilizers,
colorants, anti fungus agent, coupling agent, reinforcing agent, lubricants.)
200 square metres
Pay a 30% deposit, balance paid before shipment
Usually, 4 pieces one bag . Packing with plastic flim in pallets
Within 20days after receipt of payment for normal order
The YT-A50J30 WPC Hollow Joist is a precision-engineered structural component designed for the under-support system of WPC decking installations. As a key foundation element, it plays a crucial role in maintaining the strength, stability, and longevity of outdoor flooring systems.
Constructed from a carefully balanced composition of 35% recycled HDPE, 55% natural wood fiber, and 10% high-performance additives, this joist offers a durable, eco-friendly alternative to conventional timber supports. The co-extrusion and hollow-core design not only enhance its load-bearing capacity but also reduce weight, making it easy to handle and install while maintaining excellent structural reliability.
Product Advantages
1. Outstanding Structural Strength
The hollow-core design of the YT-A50J30 joist provides high strength-to-weight efficiency. Despite its lightweight construction, it supports heavy decking loads and foot traffic without deformation or cracking.
2. Superior Moisture and Rot Resistance
Unlike wooden joists that absorb moisture and eventually rot, this WPC joist is waterproof and resistant to mold and fungal growth. Its structure prevents warping, splitting, and decay, even in damp or rainy environments.
3. UV and Weather Resistant
Enhanced with anti-UV and anti-oxidation agents, the joist retains its stability and color under intense sunlight and harsh outdoor conditions. It resists brittleness and degradation caused by long-term exposure.
4. Eco-Friendly and Sustainable
Made from Grade A recycled HDPE and natural wood fibers, this joist contributes to resource conservation and reduces environmental impact. It is 100% recyclable and free from harmful chemicals, aligning with global sustainability trends.
5. Easy Installation and Compatibility
The joist’s consistent size and shape allow for quick and precise installation. It is compatible with various decking systems and accessories, ensuring seamless alignment and optimal load distribution.
6. Low Maintenance, Long Lifespan
The YT-A50J30 joist requires minimal maintenance over time. It does not need painting, sealing, or special treatments, offering a service life exceeding 15 years under normal outdoor conditions.
Product Uses
1. Deck Foundation Support
Primarily used beneath WPC decking boards, the YT-A50J30 joist serves as the structural framework that evenly distributes weight and provides long-term stability for outdoor decking systems.
2. Raised Platforms and Terraces
Perfect for building elevated decking areas, this joist supports uniform height and ensures water drainage underneath, reducing the risk of moisture buildup.
3. Garden Pathways and Balconies
In lighter applications such as garden walkways or balcony floors, the joist provides a durable and stable substructure without adding unnecessary weight.
4. Commercial and Public Projects
Used in parks, resorts, pool decks, and outdoor dining areas, it withstands heavy foot traffic while maintaining excellent structural integrity and safety.
Unlike metal or untreated wood supports, WPC joists expand and contract minimally with temperature changes, maintaining the structural integrity of the entire decking system. This helps prevent uneven surfaces and improves long-term safety and comfort.
Moreover, its resistance to insects, termites, and biological decay means it performs reliably in coastal, humid, or wooded environments. This versatility makes the YT-A50J30 joist suitable for nearly any outdoor construction project that demands both durability and environmental compatibility. By combining engineered strength, sustainable materials, and effortless maintenance, it ensures every WPC decking installation remains stable, safe, and visually appealing for years to come.
