Deck Spacer — 4-Position Adjustable, Weatherproof, Drainage-Optimized for WPC and Pressure-Treated Decking Key benefits Precise gap control: Intuitive spacer with 4 adjustment levels ensures exact joint alignment and consistent spacing without repeated measuring. Faster, safer installation: Ergonomic, non-slip deck spacer speeds up board laying and keeps positions stable while you fasten. Long-term durability: Made from high-quality erosion-protection material that resists weathering and preserves performance for years. Built-in drainage and ventilation: Integrated water runoff function plus improved ventilation stabilizes boards during installation and supports moisture management after fixing. Wide compatibility: Designed for WPC decking and simple to integrate with pressure-treated boards for reliable, long-lasting installations. Consistent aesthetics and structure: Guarantees uniform joint widths at pool edges, terraces, and walkways, helping maintain an even appearance and structural integrity of the deck build-up. What it does (functions) Provides four selectable spacing heights to set and lock the exact gap between boards. Holds decking boards steady and level during screw or clip installation to reduce alignment errors. Channels water away and allows air circulation beneath boards to reduce trapped moisture and promote drainage. Resists erosion and weather exposure so spacers maintain size and function over time. Compatibility and materials Suitable for WPC (wood-plastic composite) decking and compatible with pressure‑treated wood boards. Constructed from weatherproof, erosion‑protected material designed for outdoor conditions and repeated use. Practical use scenarios Poolside decking: Set consistent gap widths around the pool edge to prevent uneven joints and help water drain away from the board surfaces. Terrace installation with pressure-treated boards: Speed up deck construction while ensuring uniform spacing and long-term stability. Garden paths and walkways: Maintain consistent joint sizes between pavers and decking transitions for a neat, durable finish. Simple to use, built for outdoor conditions, and engineered to give installers precise, repeatable results without guesswork.