Product Overview

Aorai WPC Planter Box is engineered as a permanent outdoor planting solution that eliminates the weaknesses of timber planters — rot, warping, splitting, and annual re-sealing — while delivering the warm aesthetic of natural wood. Each planter is manufactured from a high-density WPC composite blend of 60% recycled wood fiber, 30% HDPE polymer, and 10% performance additives including UV stabilizers and coupling agents.

The result is a planter box that is 100% waterproof, immune to frost cracking, resistant to soil acidity, and structurally rated to hold mature trees and large shrubs without deformation. With four standard sizes from compact 400mm squares to elongated 800mm rectangular configurations, the system supports modular landscape designs from single residential garden features to large-scale commercial greening projects.

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Core Advantages

• 100% Waterproof Construction — Unlike timber planters that absorb water from soil contact and rot within 3-5 years, WPC composite has a water absorption rate below 1.5%. The material does not swell, warp, or degrade from constant moisture exposure.

• Built-In Drainage System — Each planter features pre-drilled drainage holes with removable plugs and an elevated base design that creates a 20mm air gap between the planter bottom and the mounting surface, preventing waterlogging and protecting the surface beneath.

• Frost-Resistant Durability — Tested to withstand -40°C to +60°C without cracking. The composite material does not expand and contract like solid wood, eliminating freeze-thaw damage that destroys concrete and timber planters in cold climates.

• UV-Stable Color Technology — Full-body UV stabilizers are compounded into the material during extrusion. After 4,000 hours of accelerated QUV weathering, color shift remains below Delta E 5 — essentially unchanged after a decade of direct sunlight.

• Modular Design System — Four standard sizes work together in landscape compositions. Square planters create grid patterns for formal gardens, while rectangular planters define pathways and boundary edges with a cohesive visual profile.

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Technical Specifications

Custom dimensions available for OEM/ODM projects with technical drawing approval.

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Available Colors & Finishes

Custom RAL colors available with MOQ 200 units.

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Application Scenarios

Residential & Landscape

• Garden Border & Pathway Definition — Line paths with rectangular planters filled with ornamental grasses for structured, low-maintenance landscape edges

• Rooftop Terrace Greening — Lightweight compared to concrete, reducing rooftop load while enabling container gardens on buildings

• Courtyard & Patio Feature — Large 600mm+ planters accommodate small trees, creating instant shade and privacy screening

Commercial & Municipal

• Hotel & Resort Landscaping — Premium planters where appearance retention and zero-maintenance are critical to guest experience

• Shopping Plaza Greening — Modular rectangular planters define outdoor dining zones and pedestrian pathways

• Municipal Street & Park Greening — Frost-resistant planters for city tree programs that must withstand harsh conditions

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Customization Options

• Custom Dimensions — Non-standard sizes for specific project requirements with engineering validation

• Integrated Trellis — Optional built-in trellis panels attached to the rear for climbing plant support

• Wheeled Base — Lockable caster wheel base for seasonal repositioning or event space reconfiguration

• Branding & Private Label — Laser-engraved logos and custom packaging for distributor programs

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Installation Guide

• Freestanding: Place on any flat, stable surface. Ensure drainage holes are unobstructed. No anchoring required

• Bracket-Mounted: For raised installations, use stainless steel L-brackets secured through the rear wall into structural framing

• In-Ground Embedment: Partially embed into prepared soil or concrete footings for a built-in landscape look

For planting, place a 30-50mm gravel layer at the bottom, fill with potting mix, and leave a 20-30mm gap below the rim.

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Warranty & Service

• 15-Year Structural Warranty — Covers cracking, splitting, and structural deformation under normal outdoor use

• 15-Year Surface Warranty — Guarantees against excessive fading (Delta E > 10) and surface peeling

• Sample Program — Evaluation samples available for qualified project inquiries

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Why Choose Aorai WPC Planter Box?

• Material Science Expertise — Refined composite formula optimized for outdoor planter applications where moisture resistance and UV stability are paramount

• Proven Weathering Data — 4,000-hour QUV testing records and real-world data from multiple climate zones support our 15-year claims

• Dealer & OEM Program — Volume pricing, private label packaging, and custom color development for distribution partners

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Frequently Asked Questions

Q1: Can WPC planter boxes hold large trees?

Yes. Our largest model (800×400×600mm) with 18mm wall thickness is rated for soil loads up to 150kg, accommodating most small-to-medium tree species. We recommend a minimum planter depth of 500mm for tree applications with root-guide inserts to prevent root circling.

Q2: How does WPC compare to wooden planters in lifespan?

Timber planters — even from rot-resistant species like cedar — typically last 5-10 years in constant soil contact. WPC planters are rated for 15+ years with no maintenance. The material does not absorb moisture, so there is no rot cycle. Over the planter's lifetime, WPC costs 40-60% less than timber when factoring in replacement cycles.

Q3: Will the planter color fade in direct sunlight?

UV stabilizers are compounded throughout the entire material thickness, not just on the surface. Color shift is limited to Delta E < 5 after 4,000 hours of accelerated weathering — equivalent to approximately 10 years of direct outdoor exposure. Even if the surface were scratched, the underlying material has the same UV resistance.

Q4: Are the planters safe for growing edible plants?

Absolutely. The HDPE polymer used is food-grade material — the same used in cutting boards and food containers. It does not leach chemicals into soil or water. Unlike pressure-treated timber containing copper-based preservatives, our WPC planters contain no biocides or chemical treatments.

Q5: Can planters be used in freezing climates?

Yes. The composite withstands -40°C without becoming brittle. Unlike concrete planters that spall from freeze-thaw cycles, WPC remains dimensionally stable because water absorption is below 1.5%. We supply planters for projects in Scandinavia, Canada, and northern China.