Absolutely, you can. From our planter box factory, every unit can be fitted with a high-quality, liquid-tight liner that acts as a complete barrier between the soil and the exterior material. This liner is made from a thick, food-grade, UV-stabilized polyethylene that is both flexible and puncture-resistant. It prevents moisture, organic acids, and fine soil particles from ever reaching the wood, metal, or composite surface. As a result, there is no discoloration, no warping, and no ugly watermarks. The liner is installed with a slight overlap at the top edge and includes pre-punched drainage holes that align perfectly with the box’s own drainage system. This means your planter stays fully functional while the exterior remains pristine for years. We can also customize the liner height, thickness, and color to match your design or brand. Whether you need rectangular, square, or cylindrical planters for residential, commercial, or urban farming projects, our factory can integrate the liner seamlessly during production. This not only saves you the hassle of retrofitting after purchase but also extends the life of your planter boxes significantly. If you are worried about staining from rich potting mixes or heavy watering, rest assured — our liner system is the definitive solution. You can also request a sample kit to test the liner’s performance before placing a bulk order. Just send us your dimensions and desired finish, and we will provide a quote with the liner option included. Our team is happy to advise on the best liner configuration for your specific climate and plant types. With our in-house manufacturing, we maintain strict quality control so every liner is sealed, tested, and guaranteed not to leak or tear during normal use. So yes, you can get planter boxes from our factory with liners that completely prevent soil from staining the exterior — and you will love how clean and new they look season after season.