Ultym Fir Wood Square Planter Boxes 18" — 2-Pack 16x16x18 with Removable Drainage Base & Liner

These are two 18-inch fir wood square planter boxes from Ultym, each with a removable drainage base and liner for tidy, healthy container gardening.

Designed for patios, balconies, porches and small vegetable beds, this 2-pack combines solid fir construction with a crate-style look and practical features that simplify planting and maintenance. Each planter measures 16" × 16" × 18", providing generous soil volume for flowers, herbs, succulents or compact vegetable varieties. The removable bottom, pre-drilled drainage holes and included non-woven fabric liner help control moisture while keeping soil contained.

How do these planters keep roots healthy without making a mess?

The Ultym planters use a removable base panel with pre-drilled drainage holes and a fitted non-woven fabric liner to balance drainage and soil retention. Excess water exits through the holes while the liner prevents soil from washing out, improving aeration and reducing soggy roots.

• Removable bottom panel for easy access and cleaning
• Pre-drilled drainage holes to prevent standing water
• Non-woven liner filters soil but allows water to pass
• Suitable for indoor use with a catch tray or outdoor use as-is

Will the wooden construction stand up to outdoor weather?

These boxes are built from solid fir wood, which naturally resists the elements better than some softwoods and shows attractive grain over time. Corner posts and metal hardware reinforce the frame to reduce warping and provide stable support for heavier plants or soil loads.

• Solid fir wood panels for natural durability and appearance
• Reinforced corners and metal fasteners for structural strength
• Classic crate styling that patinas attractively outdoors
• Can be used year-round with routine care and sealing if desired

How much planting space do I get in each box and what can I grow?

Each planter measures 16" wide by 16" deep with an 18" height, offering a roomy root zone for single larger specimens or groups of smaller plants. The square footprint is ideal for root vegetables, clusters of herbs, cascading annuals or layered floral arrangements on small decks and entryways.

• 16" × 16" planting surface with 18" depth for ample root room
• Room for 1-2 larger plants or several small plants/seedlings
• Good for herbs, compact vegetables, perennials and succulents
• Two planters provide a coordinated look for symmetrical displays

How easy is it to set up and maintain these planters?

Assembly is straightforward: all hardware and instructions are included so you can build each box in minutes. The removable base simplifies soil changes and cleaning, while the liner and drainage holes lower ongoing maintenance compared with fixed-bottom wooden planters.

• Includes hardware and step-by-step assembly guide
• Quick-access removable bottom for switching soil or plants
• Low-maintenance liner keeps soil tidy and reduces clogging
• Works indoors with a tray or outdoors placed directly on decking or ground

Who is this for: The Ultym 2-pack is a good fit for gardeners who want attractive, durable wooden containers with sensible drainage—homeowners enhancing entryways, balcony or patio gardeners working in compact spaces, and anyone who prefers a natural, crate-style planter that’s easy to maintain. If you need roomy, reinforced wooden boxes that balance aesthetics and practical drainage, these planters are tailored to those needs.