Yes—our planter box factory can include drainage holes, liners, or both, depending on the depth of the planter, how it will be used, and whether it will sit indoors or outdoors. Deep planters are not automatically a drainage problem, but they do need a drainage strategy that matches their size. A shallow box may work well with a few well-placed bottom holes, while a deep planter often performs better with a layered system: factory-drilled drainage holes, side overflow holes, a false bottom or reservoir, filter fabric, and an optional liner that protects the planter shell without trapping water.

If you choose a liner, it is important to specify a drainage-compatible liner rather than a fully sealed waterproof liner. For indoor or balcony planters, a sealed liner can help protect floors and surfaces, but it should be paired with a reservoir and overflow system so plant roots do not sit in standing water. For outdoor deep planters, bottom drainage holes combined with raised feet and side overflow ports can help prevent waterlogged soil during heavy rain.

Factory options can include pre-drilled bottom or lower-side drainage holes, slotted or perforated false bottoms, removable drainage trays, geotextile filter fabric, waterproof liners with reservoirs, overflow ports, and custom hole placement. The right choice depends on plant type, soil mix, climate, and irrigation plans. In rainy climates, overflow capacity matters more; in dry climates, a modest reservoir can help retain moisture. Deep planters should also use a lightweight, well-draining soil mix and adequate aeration.

So the direct answer is yes: our planter box factory can include holes or liners, and we can customize the drainage design for deep planters. To get the best result, share the planter depth, indoor or outdoor placement, plant type, and watering method so the factory can recommend the right combination of drainage holes, liner type, overflow, and reservoir.