Yes, we do sell liners and inserts for urban planter boxes, and they are specifically designed to protect the inside of the planter. A good liner or insert creates a barrier between the soil, moisture, roots, and the planter walls. That helps reduce staining, rust, corrosion, warping, and premature wear, especially in wood, metal, or composite urban planter boxes.
Our options include flexible waterproof liners, rigid plastic inserts, fabric geotextile liners, and coco coir-style liners for a more natural look. Most are drainage-friendly, so you can keep proper airflow and water flow while still shielding the interior. If you need a custom fit, we can often trim or recommend the closest size based on your planter’s interior dimensions.
To choose the right liner or insert, measure the inside length, width, and depth, then check whether your planter already has drainage holes. If you send us your urban planter box model or dimensions, we’ll help you find the best protective liner or insert for your setup.