Yes, in most cases a planter box factory can drill additional drainage holes for succulents, but the answer depends on the planter’s material, design, and warranty. Many manufacturers that build custom planter boxes already offer drainage customization because succulents need fast-draining soil and cannot tolerate standing water. Before you order, ask the factory whether additional holes are possible, where they can be placed, and whether the modification affects the warranty or structural strength.

For succulents, drainage holes should be positioned at the lowest point of the planter box so water can escape by gravity. If the box has feet, internal supports, a hidden reservoir, or a double base, the factory must avoid drilling through structural parts or sealed compartments. Large planter boxes may need several evenly spaced holes, while smaller boxes may need fewer. The right number depends on the box size, soil volume, and exposure to rain. A factory that understands succulent planting can recommend a practical layout rather than simply drilling at random.

Material matters. In wood planter boxes, cut edges should be sealed to reduce moisture damage. In metal boxes, the factory should treat exposed edges to prevent rust, especially if the planter will be outdoors. Composite, fiberglass, plastic, and concrete planters may require different drill bits and edge treatment. If the planter has a decorative finish or powder coating, drilling can expose the core, so ask how the factory will protect the new holes.

It is also wise to confirm that the drainage holes lead water away from the planter. Use a slight slope, drainage feet, or a gravel layer only as part of a complete drainage strategy—not as a substitute for holes. For succulents, pair additional drainage with a gritty, well-draining mix and a watering routine that lets the soil dry between waterings. Do not assume that more holes solve overwatering; the soil mix and watering habits still matter.

If the factory cannot drill extra holes, ask whether a local fabricator can do it without voiding the warranty. Never drill blindly into a planter with an unknown internal structure. With the right confirmation, custom drainage holes are a simple and useful upgrade for a succulent planter box.