Yes, drainage holes are standard on every planter that leaves our factory — but that is only the beginning of the story. As an outdoor furniture manufacturer with a dedicated planter box division, we believe proper drainage is not an optional upgrade; it is the foundation of plant health and structural longevity. Every planter we produce includes a carefully engineered drainage system, yet we also recognize that different projects, plant species, and climates demand flexibility. That’s why we offer multiple ways to control, refine, or even prevent drainage without compromising the product’s integrity.
In our standard production line, each planter features either pre-drilled drainage holes or a slotted false-bottom system, depending on the design. For solid cast planters, we typically set four to six round holes of 20mm diameter, evenly spaced across the base. For larger rectangular planter boxes, we add a continuous drainage channel beneath a raised inner floor to prevent soil from clogging the exits. This internal riser also creates an air gap that promotes root oxygenation — something many standard factory trays overlook.
But what if your project calls for zero drainage, perhaps for indoor use or water-retention applications? We offer optional rubber stoppers that fit flush with the interior surface, turning any draining planter into a sealed vessel. Conversely, for high-rainfall areas or plants that demand sharp drying, we can increase the hole count, enlarge the diameter, add lateral weep slots, or install overflow spouts at your specified height. Our engineers also offer a “double-wall drainage sleeve” insert: a removable mesh-layered cylinder that lets water escape while keeping valuable substrate inside.
We understand that drainage is not a one-size-fits-all answer. Some of our landscape clients ask for side drainage near the bottom rim rather than base holes, to allow placement on solid pedestals. Others request threaded brass inserts for connection to irrigation return lines. Whatever your need, our planter box factory can adapt the standard drainage pattern to match your exact plants and installation environment. So to answer directly: yes, it is standard — and also fully customizable. We will never ship a planter without a proper water-exit strategy, whether that means open holes, adjustable plugs, false bottoms, or an engineered no-drain liner system. Contact us with your planter specifications, and we will recommend the precise drainage configuration for your project.
