SKU: 76627533622
square plastic planter boxes

square plastic planter boxes Seeley Cube Planter

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Description

square plastic planter boxes Seeley Cube PlanterSeeley Cube Fiberglass Planter Steel Reinforced Large Block for Indoor Outdoor Plants and Trees. Entryway, Patio, Privacy, Balcony One Planter Unlimited Possibilities Material: Professional grade fiberglass for extreme durability and a refined aesthetic. Structural Integrity: Internal steel reinforcement on 20", 24", and 30" sizes to ensure perfectly straight walls. Application: Versatile design for privacy screening, spatial division, and entryway

Seeley Cube Fiberglass Planter - Steel-Reinforced Large Block for Indoor /Outdoor Plants and Trees. Entryway, Patio, Privacy, Balcony

One Planter - Unlimited Possibilities

  • Material: Professional-grade fiberglass for extreme durability and a refined aesthetic.

  • Structural Integrity: Internal steel-reinforcement on 20", 24", and 30" sizes to ensure perfectly straight walls.

  • Application: Versatile design for privacy screening, spatial division, and entryway framing.

  • Indoor / Outdoor: Beautifully finished, and optimized for high-traffic commercial interiors, rooftop decks, and expansive outdoor patios.

  • Finish: All Weather UV-resistant architectural matte finish available in Classic White, Grey, and Black.

  • Durability: Engineered to be shatterproof, frost-proof, and fade-resistant for year-round exposure.

  • Weight: High strength-to-weight ratio allows for easy placement while maintaining stability.

  • Drainage: Equipped with pre-drilled drainage holes and removable rubber plugs.

  • Free Fast Shipping - All Orders. 30" Cube - 7/10 Pre-Order

Why Designers Choose the Seeley Cube

The Seeley Cube is the foundational choice for anyone who appreciates clean, minimalist geometry. If you have ever seen a standard plastic planter warp or fade after a single season, you will appreciate the industrial-grade difference here. It is designed to be a permanent, design-forward extension of your architecture.

In professional settings, these are most often used to create a "ceremony of arrival" at entryways or arranged in a rhythmic series to create a "living wall." Because the lines are so crisp and the matte finish so refined, the Seeley Cube defines space—like an open-plan office or a sprawling patio—without adding visual clutter. It anchors the environment, allowing your greenery to take center stage.

The Science: Why Steel-Reinforcement Matters for Large Planters

Most large planters suffer from "bellying"—a phenomenon where the sides bulge outward once filled with heavy, wet soil. This ruins the architectural silhouette. To prevent this, NMN Designs integrates internal steel reinforcement into our 20", 24", and 30" models.

This engineering ensures that even when housing a heavy, mature tree, the walls remain perfectly plumb and vertical. Combined with our commercial-grade fiberglass, you get a vessel that handles extreme thermal expansion (from scorching summers to sub-zero winters) without the cracking or brittleness found in standard resin or plastic pots.

Engineered for Performance: Indoor and Outdoor Versatility

The Seeley Cube transitions effortlessly between environments. For interior use in a foyer or gallery, keep the rubber plugs inserted for a watertight seal. For outdoor installations on a deck or patio, simply remove the plugs to ensure vital drainage and oxygen for the root zone.

Recommended Tree and Plant Pairings by Size:

  • 14" Cube (Medium): Ideal for architectural foliage and "tree-like" indoor plants. Best for Snake Plant, ZZ Plants, or a Spider Plant. Perfect for office corners or flanking a residential console table. Outdoor - Ornametal Grasses, Small Plants.

  • 20" / 24" Cube (Large and Extra Large): The perfect size for entryway ceremony and ornamental trees. Ideas include Evergreens and Boxwood Topiaries, Ornamental Grasses, Olive Trees, or Fiddle Leaf Figs. For a vertical architectural look, Sky Pencil Hollies are excellent.

  • 30" Cube (XXL -Extra-Large): Designed for specimen trees and high-impact privacy. This volume is required for larger trees such as Japanese Maples, Dwarf Citrus (Lemon/Lime), or Serviceberry. To create a privacy screen, plant a series of Emerald Green Arborvitae or Tall Ornamental Grasses.

Pro-Tips for the Best Results

  • High-Wind Stability: For exposed roof decks or coastal balconies, add 3 inches of heavy gravel at the base before adding soil. This lowers the center of gravity, ensuring your privacy screen stays upright during heavy gusts.

  • Thermal Protection: While the fiberglass is frost-proof, using an insulated liner inside the planter in extreme northern climates can help protect the root balls of perennial trees, ensuring they return season after season.

The Seeley Cube Planter is made in India by NMN Designs®

Indoor Planter Box - Medium (14") to Extra Large (24")

    Size Specifications

    • Medium Planter - 14" L x 14" W x 14" Tall 
    • Large Planter - 20” L x 20” W x 20” Tall
    • Extra Large Planter - 24" L x 24" W x 24" Tall
    • XXL Planter - 30" L X 30" W X 30" Tall  (Black Only)

    Internal dimensions are 1/2" less for L x W x H

    Save Extra 10% OFF Entire Order ($125 Minimum) with Code GET10

    Enjoy always free, fast shipping. Typically within 2-3 business days.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 76627533622

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    4.9 ★★★★★
    Based on 15 reviews
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    Product Reviews
    M
    Verified Purchase
    Michelle L.
    Dallas, US
    ★★★★★ 5
    Great Looking and Sturdy Monitor Arms
    Color: White-Mount, Color: White-Mount
    I'm so impressed with these arms. They're super strong and sturdy holding up my 27" monitor and 34" ultrawide monitor. Setting up for the most part is pretty simple and easy. One of the best things I like about these arms is the cable management. I had several arms before for my setup at home and work, and the cable covers are usually pretty flimsy and just slide and lock in. I have a lot DP and HDMI cables due to my dual workstation, so these cable covers often end up popping out since its so full. These cable covers are different since they are screwed down tight with a bolt. All my cables fit pretty snug, but there is no bulging and I don't have to worry about the covers popping off ever again. I'd recommend keeping it at a maximum of 4 thicker cables though. However, fair warning that attaching the covers can be a pain so if you have to detach cables often, the screwed in covers can be a problem. If you have a set up like mine that won't really change often, it works well. If you can, I would suggest having 2 people set up the cable management. One to hold down the cover in place and the other to screw it in. I did it myself just fine though. The range of motion is great for my needs, but please note that I tried stacking my monitors and it didn't quite work. I would say it's 1 to 2 inches shy of properly stacking them. Overall, a great looking set of dual monitor arms. The extra ports on the base are a cool feature that do work, but I haven't had much use of it yet. Love that they had a white option to match my set up too. These are a little pricey, but they're really worth it!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 21, 2021
    J
    Verified Purchase
    Jorge Roman
    Fort Morgan, US
    ★★★★★ 5
    You will be hard pressed to find an equal or better product regardless of the price.
    Color: Black-Mount, Color: Black-Mount
    Review of AVLT Dual 13"-35" Monitor Arm Desk Mount I do not usually rate items, except for products that are exceptional or are provided by a vendor that is above all others. I looked at this item several times, because the price was $100 less than my five year old dual arm could not raise the 38” monitor more that 8” from the desk surface and barely keep my wiring hidden. Finally, the website for AVLT convinced me to place the order for the AVLT-DM41-1, Dual 13"-35" Monitor Arm Desk Mount. I was not disappointed. The quality and finish of the aluminum mount is space age quality, the manual acceptable (ilea type); most important the I can raise my 38” monitor to a perfect ergonomic height. My monitors are a Dell 38” U3818DW, (larger than 13” to 35” range) and a Dell 24” U2412M, U. for each I use the factory power cable, DP to DP display port 6 foot cables and high speed USB 3 cables for each monitor. The assembly went without a hitch, no problem hiding the heavy cables that I use, my only problem was that my was not a C-clamp, attaching the hex bolts to the base from the underside of my desk was difficult; t would had been easier had they used a stud bolts to clamp the unit down. The arm springs had no problem supporting my 38” monito, the unit is so sturdy I expect to receive years of service. I strongly recommend this item because of value, quality and design. You will be hard pressed to find an equal or better product regardless of the price.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 10, 2020
    N
    Verified Purchase
    Nallely
    Dallas, US
    ★★★★★ 5
    Great product
    Color: White-Mount
    Amazing product. It’s perfect. Tried a few other dual monitor arms and they sucked and didn’t hold up the monitors. This one is amazing and aesthetically pleasing. Well worth the money. All parts included. Large range of motion, you just have to loosen the screws to make it easier to move or tighten to keep everything still. Perfect size and provides all my amount of desk space back.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 10, 2026
    N
    Verified Purchase
    Nathalia Diaz
    Chelsea, US
    ★★★★★ 5
    Good quality last long
    Style: FHD 240Hz, Size: 27-inch, Style: FHD 240Hz, Size: 27-inch
    I’ve had it for about almost two years and it’s never don’t me wrong, Someone even smacked it almost a punch and it still works perfectly so it’s sturdy 😭
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 30, 2026
    J
    Verified Purchase
    Josiel Rosales
    New York, US
    ★★★★★ 5
    Smooth, immersive gameplay at 240Hz – Great curved monitor!
    Style: FHD 240Hz, Size: 27-inch
    This monitor exceeded my expectations. The 240Hz refresh rate makes a huge difference for gaming—everything feels incredibly smooth and responsive. The 1500R curved screen adds a real sense of immersion, especially in racing and FPS games. Picture quality is great thanks to the VA panel. You get deep blacks, strong contrast, and wide viewing angles. The 1ms response time and Adaptive-Sync (FreeSync) keep things sharp with no screen tearing. Build quality is solid, and the adjustable stand (height, tilt, and swivel) is a big plus. I also appreciate the VESA compatibility and the fact that it comes with an HDMI cable included. If you’re a gamer looking for speed and immersion, this monitor is definitely worth it. The Full HD resolution is fine for gaming, but might not be ideal for serious productivity or photo editing. Highly recommended for smooth, immersive gaming at a great value!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 29, 2025

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