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Description

Monolith Outdoor Concrete Planters - Square 100x100x50 – Statement Simplicity, Built to Endure

Discover the power of clean lines and architectural precision with the Outdoor Concrete Planters - Square 100x100x50. With its expansive horizontal shape, this model is ideal for low, spreading plants, ornamental grasses, or curated arrangements in courtyards, terraces, and public spaces. Its balanced proportions offer both visual impact and practical planting depth.

Made from architectural GRC concrete with 5 cm thick monolithic walls, this planter resists weather extremes while providing excellent structural integrity. The impregnated porous finish protects roots from overheating, while enhancing the raw, modern texture of the concrete. Every unit is handcrafted, ensuring subtle variations that highlight its artisanal character. Integrated drainage ensures healthy growth and worry-free maintenance.

Available in 4 shades. Custom dimensions and colours available upon request.

Why Choose Monolith Outdoor Concrete Planters for Your Garden?

  • Low and wide profile: Perfect for terraces, borders, or patios
  • Monolithic design – each planter is cast from a single block of concrete, not assembled from slabs
  • Drainage hole included for optimal water flow
  • Factory-impregnated during production – invisible, non-color-altering concrete sealant
  • Frostproof, waterproof, and fire-resistant (A1 fire class)
  • Reinforced with steel rods in models with walls thicker than 3 cm
  • Colour-matched with our Wallset concrete wall panels for seamless design integration
  • Samples available upon request
  • Optional premium insulation with high-density polystyrene available for extreme frost conditions
  • Repair kit available in any finish on special request – ideal for chips and minor damage
  • Integrated steel alignment hooks in the base – compatible with cranes or hoists (use before soil filling)
  • Architectural integrity: One-piece GRC form with no glued joints
  • Effortless modern style: Raw finish suits natural and urban spaces
  • All-weather protection: Sealed to resist heat, frost, and moisture
  • Custom orders welcome: Flexible solutions for unique projects

Technical Details – Outdoor Concrete Planters

  • Model: Square
  • Dimensions: 100 × 100 × 50 cm
  • Wall Thickness: 5 cm
  • Material: Architectural GRC Concrete
  • Finish: Impregnated, porous concrete surface
  • Drainage: Integrated drainage hole
  • Fire Resistance: Fireproof (A1 class)
  • Frost Resistance: Frostproof
  • Water Resistance: Waterproof
  • Weight (est.): 250 kg

Make a bold horizontal impression with a concrete planter that blends natural beauty with functional design.

Outdoor Concrete Planters - Square 100x100x50 cm

  • Outdoor Concrete Planters - Square 100x100x50 cm on white background Decormania UK
  • Outdoor Concrete Planters - Square 100x100x50 cm on white background Decormania UK
  • Outdoor Concrete Planters - Square 100x100x50 cm on white background Decormania UK
  • Outdoor Concrete Planters - Square 100x100x50 cm on white background Decormania UK
Regular price £532.00

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Price per single planter

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Premium Outdoor Concrete Planters

Monolith Outdoor Concrete Planters - Square 100x100x50 – Statement Simplicity, Built to Endure

Discover the power of clean lines and architectural precision with the Outdoor Concrete Planters - Square 100x100x50. With its expansive horizontal shape, this model is ideal for low, spreading plants, ornamental grasses, or curated arrangements in courtyards, terraces, and public spaces. Its balanced proportions offer both visual impact and practical planting depth.

Made from architectural GRC concrete with 5 cm thick monolithic walls, this planter resists weather extremes while providing excellent structural integrity. The impregnated porous finish protects roots from overheating, while enhancing the raw, modern texture of the concrete. Every unit is handcrafted, ensuring subtle variations that highlight its artisanal character. Integrated drainage ensures healthy growth and worry-free maintenance.

Available in 4 shades. Custom dimensions and colours available upon request.

Why Choose Monolith Outdoor Concrete Planters for Your Garden?

  • Low and wide profile: Perfect for terraces, borders, or patios
  • Monolithic design – each planter is cast from a single block of concrete, not assembled from slabs
  • Drainage hole included for optimal water flow
  • Factory-impregnated during production – invisible, non-color-altering concrete sealant
  • Frostproof, waterproof, and fire-resistant (A1 fire class)
  • Reinforced with steel rods in models with walls thicker than 3 cm
  • Colour-matched with our Wallset concrete wall panels for seamless design integration
  • Samples available upon request
  • Optional premium insulation with high-density polystyrene available for extreme frost conditions
  • Repair kit available in any finish on special request – ideal for chips and minor damage
  • Integrated steel alignment hooks in the base – compatible with cranes or hoists (use before soil filling)
  • Architectural integrity: One-piece GRC form with no glued joints
  • Effortless modern style: Raw finish suits natural and urban spaces
  • All-weather protection: Sealed to resist heat, frost, and moisture
  • Custom orders welcome: Flexible solutions for unique projects

Technical Details – Outdoor Concrete Planters

  • Model: Square
  • Dimensions: 100 × 100 × 50 cm
  • Wall Thickness: 5 cm
  • Material: Architectural GRC Concrete
  • Finish: Impregnated, porous concrete surface
  • Drainage: Integrated drainage hole
  • Fire Resistance: Fireproof (A1 class)
  • Frost Resistance: Frostproof
  • Water Resistance: Waterproof
  • Weight (est.): 250 kg

Make a bold horizontal impression with a concrete planter that blends natural beauty with functional design.

Outdoor Concrete Planters - Square 100x100x50 cm on white background Decormania UK
Outdoor Concrete Planters - Square 100x100x50 cm
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Place & Plant in Seconds

No tools, no fuss

Engineered to Endure

UV-resistant, built to last

Designed for Real Gardens

Perfect for outdoors.

Form Meets Flexibility

Choose your perfect match

Outdoor Concrete Planters that hold their ground (and your vision)

Add architectural presence and planting power with our Outdoor Concrete Planters. Built from durable GRC concrete and available in a wide range of sizes, each planter is designed to handle the elements—rain, frost, UV, and heat—without losing its sharp silhouette. Whether you're defining garden borders, zoning rooftops, or greening up public spaces, these monolithic pieces bring structure, texture, and long-lasting appeal to every setting.

Choose from square or rectangular formats, in four timeless shades—or customise your own to fit large-scale landscaping or design-led outdoor projects.

Outdoor Concrete Planters - Rectangle 50x120x50 cm composition in the backyard Decormania UK
Outdoor Concrete Planters - Rectangle 50x120x50 cm next to the front door Decormania UK

FAQs

Are the planters made from one solid piece?

Yes – each planter is monolithic, cast from a single block of concrete (not assembled from slabs), ensuring maximum strength and clean design.

Do they have drainage and protection against weather?

All planters include a drainage hole and are waterproof, frostproof, and fire-resistant (A1 rating). They are also factory-sealed with a non-visible impregnating agent that doesn’t alter the finish.

Do you offer samples or repair kits?

Yes – samples are available on request. We also provide colour-matched repair kits for chips or surface damage on special order.

Can I request custom sizes or insulation?

Absolutely. We offer custom-sized planters, as well as optional high-density polystyrene insulation for areas with extreme frost.

How are they delivered and installed?


Smaller planters (up to 80×80 cm) are pallet-delivered and require two adults for positioning. Larger units include metal alignment hooks in the base for lifting with a crane or hoist (before filling with soil).

Do they match your concrete wall panels?

Yes – the colour tones are selected to coordinate perfectly with our concrete decorative wall panel collections for a unified architectural look.

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