NMN Designs Architectural Planters - No Drainage Holes. Large Modern Cyclinders, Cubes, Long Block Planters - Stainless Steel and Aluminum Metals, Waterproof Linings - Outdoor and Indoor Use

The Knox Cyclinder Indoor Planter with Wood Base - No Drainage

Ideal for both home and commercial projects, the NMN Designs® modern metal architectural planters are a durable, stylish solution for indoor and outdoor landscaping. We build these sealed plant containers from premium materials—including 18/8 stainless steel and aluminum—ensuring they are watertight to protect your floors from water leakage. While the metal planter bodies are weather-resistant and safe for outdoors, they arrive without drainage holes. This makes them perfect for use indoors as mess-free "cachepots."

The No Drainage Assortment: Planter Collections & Shapes 

Knox Collection (Stainless Steel): Add smooth curves to a room. The Knox Stainless Steel series is crafted from high-grade 18/8 stainless steel for superior rust resistance and strength. These clean cylinder round shapes work well in corners or entryways. Reinforced with a sturdy fiberglass lining, they are strong enough to hold large trees ranging from 12" to 31" planters.

Madeira Collection (Brushed Aluminum): Add structure and clean lines. The Madeira series includes the cube block and long block / rectangle, which are great for dividing spaces or lining walkways. Made from brushed aluminum with a tough epoxy lining, these architectural planters are lightweight yet rigid.

Raised Base Options: Selected styles come with hardwood bases to lift the planter off the floor. Note: Planters with wood bases are for indoor use only.

Usage & Specifications for Planters Without Drainage Holes

• Indoor Use (Watertight): These act as sealed "cachepots." Simply place your nursery grow pot directly inside the metal planter. The internal fiberglass or epoxy lining prevents leaks, keeping your hardwood or tile floors dry and safe.

• Outdoor Use (Drillable or Maintenance): The 18/8 stainless steel and aluminum bodies handle the elements easily. You can drill holes in the base for permanent drainage. If you leave them sealed outdoors, use a removable pot inside. After a heavy rain, simply tip the metal planter over to pour out the excess water.

• Planting Advice: Using a removable plastic grower pot inside the decorative shell is the best way to maintain healthy plants. This allows you to easily swap plants or dump out water that collects at the bottom, preventing root rot without the need for drilling.