Yes. Our planter box factory can drill extra drainage holes when you request them. We treat drainage as a functional part of the planter design, not an afterthought. Before production begins, our team confirms the hole diameter, quantity, spacing, position, and edge distance. If you already have a drawing, we can follow it; if not, we can recommend a practical layout based on the planter size, growing medium, and expected water flow. For most standard planter boxes, drainage holes are placed in the base, but we can also add side drainage if your design requires it. We avoid load-bearing areas and sharp corners, and we check that the holes will not weaken the panel or interfere with assembly. Extra holes can be drilled after fabrication or integrated into the production process, depending on the material and order quantity. Common options include round holes, slotted drainage, and reinforced openings. We can also add mesh or filter accessories if you want to reduce soil loss. Custom drilling may involve a small setup fee, and MOQ depends on the box style and material; we are happy to quote based on your quantity. Before mass production, we provide a sample or layout drawing for approval. Our QC team checks hole size, spacing, burr removal, and alignment. Packaging includes protective separation when needed. In short, yes, we can drill extra drainage holes, and we will confirm the details with you before production to ensure the planter drains well and stays strong. Please send your planter dimensions, material, hole requirements, and order quantity for an accurate quotation.