At our planter box factory, we understand that humid climates pose a serious threat to outdoor wood. To prevent termites and rot, we use a multi-step treatment process that starts with kiln-dried timber. By reducing moisture content below 19%, we eliminate the environment where fungi and insects thrive. Next, we apply a food-safe borate pressure treatment. Borate penetrates deep into the wood fibers, creating a toxic barrier for termites while remaining harmless to plants and humans. After this, we seal every surface with a breathable, water-repellent coating that blocks moisture absorption but allows internal vapor to escape. Finally, we add stainless steel or galvanized hardware to avoid rust and further moisture traps. This combination ensures that your planter boxes withstand years of rain, heat, and humidity without cracking, warping, or inviting pests. Every batch is tested for treatment consistency, and we offer a warranty against termite damage and rot in normal conditions. So when you choose our planters, you are not just buying a wooden box – you are investing in engineered durability for the toughest weather.