Large Rectangular Corten Steel Trough Planter

Introduce

Specification

Frequently Asked Questions

Application

project

Introduce

Looking for a long-span rectangular metal planter that won't bulge, crack, or rot over time? Unlike thin sheet-metal pots or brittle fiberglass troughs, the AHL CP08 1200mm Corten Steel Trough Planter is built as a true structural container. Its 400 mm narrow footprint and 550 mm root depth make it perfect for creating natural green privacy dividers along walkways, balcony edges, and restaurant dining zones without sacrificing floor space.

Every CP08 planter is fully seam-welded at the corners, ground smooth, and reinforced with an internal vertical C-channel brace at the mid-span of the 1200 mm wall to eliminate soil-load deflection and frost-heave distortion. Available in raw weathering steel, factory pre-rusted patina, or custom RAL powder coating, with optional 15–25 mm riser feet, pre-drilled drainage holes, and internal XPS root insulation for extreme hot or freezing climates. 【OEM/ODM & Custom Project Sizes Supported】

Specification

AHL-CP01

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 16/22/29

Size(CM): 45*35*50/45*35*75/45*35*100

Package Size(CM): 50*40*55/50*40*80/50*40*105

AHL-CP02

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 8/14/22/30/41/53/82

Cubic Size(CM): 30/40/50/60/70/80/100

Package Size(CM): 35/45/55/65/75/85/105

AHL-CP03

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 25/30/32

Size(CM): 60*30*50/50*30*80/80*30*50

Package Size(CM): 65*35*55/55*35*85/85*35*55

AHL-CP04

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 14/25

Size(CM): 30*30*45/40*40*60

Package Size(CM): 35*35*50/45*45*65

AHL-CP05

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 14/19/24/30/37

Size(CM): 30*30*60/40*40*60/40*40*80/40*40*100/50*50*100

Package Size(CM): 35*35*65/45*45*65/45*45*85/45*45*105/55*55*105

AHL-CP06

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 11/17/24/43

Size(CM)D*H: 40*40/50*50/60*60/80*80

Package Size(CM): 45*45*45/55*55*55/65*65*65/85*85*85

AHL-CP07

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 7/26/70/110

Size(CM): 25*25*25/50*50*50/80*80*80/100*100*100

Package Size(CM): 30*30*30/55*55*55/85*85*85/105*105*105

AHL-CP08

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 7/26/70

Size(CM): 25*25*25/50*50*50/80*80*80

Package Size(CM): 30*30*30/55*55*55/85*85*85

AHL-CP09

Steel Planter Pot

Thickness(MM): 1.5

Weight(KG): 2

Size(CM): 32*9*24

Package Size(CM): 37*14*29

AHL-CP10

Steel Planter Pot

Thickness(MM): 1.5

Weight(KG): 1.5

Size(CM): D40*H40

Package Size(CM): 45*45*45

AHL-CP11

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 40

Size(CM): 80*30*120

Package Size(CM): 85*35*125

AHL-CP12

Steel Planter Pot

Thickness(MM): 3.0

Weight(KG): 57

Size(CM): 150*50*H70

Package Size(CM): 155*55*75

AHL-CP13

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 17

Size(CM): D35*H80

Package Size(CM): 40*40*85

AHL-CP14

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 19

Size(CM): D50*H60

Package Size(CM): 55*55*65

AHL-CP15

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 17

Size(CM): D50*H50

Package Size(CM): 55*55*55

AHL-CP16

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 31/45/53/68

Size(CM): 100*45*H45/120*50*H60/150*50*H60/200*50*H60

Package Size(CM): 105*50*50/124*55*65/155*55*65/205*55*65

AHL-CP17

Steel Planter Pot

Thickness(MM): 2.0

Weight(KG): 20/37

Size(CM): 88*30*H75/90*30*H80

Package Size(CM): 93*35*80/95*35*85

AHL-CP18

Steel Planter Pot

Thickness(MM): 3.0

Weight(KG): 30

Size(CM): D80*H60

Package Size(CM): 85*85*65

Key Features & Benefits

Feature	Benefit
Generous 1200mm Length	Provides ample space for linear planting schemes, acting as a natural space divider
550mm Height & 400mm Depth	Deep enough to support the root systems of small trees and large shrubs
Premium Corten Steel Construction	Develops a beautiful, self-protecting rust patina; never needs painting or sealing
Heavy-Duty 3mm+ Steel	Structural stability under heavy soil loads; resistant to impact and deformation
Pre-Drilled Drainage Holes	Prevents water accumulation and root damage
Optional Riser Base	Lifts the planter to reduce concrete staining and improve airflow
Low Maintenance	No painting or sealing required; occasional cleaning is all that's needed
Weather-Resistant	Withstands freezing winter cycles and high-traffic commercial zones

Detailed Specifications Table

Specification	Details
Material	Weathering Steel (Corten A / ASTM A588)
Material Thickness	2.0mm – 3.0mm (recommended ≥3mm for structural stability)
Overall Length	1200 mm
Overall Width	400 mm
Overall Height	550 mm
Finish	Natural rust patina (pre-weathered available)
Drainage	Pre-drilled drainage holes
Optional Features	Riser base, internal liner, pre-rusting treatment
Application	Outdoor / Indoor (with liner)

Applications & Creative Uses

Setting	Description
Residential Gardens	Create a cohesive, professionally designed look with coordinated planters.
Patios & Decks	Define outdoor living areas with clustered planters at corners.
Hotel & Resort Entrances	Welcome guests with dramatic, oversized planters framing doorways.
Restaurant Outdoor Dining	Enhance ambiance; define dining zones with planter groupings.
Commercial Plazas	Durable, high-impact planting for public spaces.
Retail Storefronts	Frame entrances, highlight signage, or soften hardscapes.
Rooftop Gardens	Lightweight relative to concrete; perfect for weight-sensitive areas.
Event Venues	Flexible arrangement for weddings, parties, and exhibitions.

Arrangement Ideas

The planter set is designed for maximum design flexibility. Here are proven arrangement strategies:

Arrangement	Description	Best For
Clustered Grouping	Group all three planters close together, varying heights. Creates a bold focal point.	Garden focal points, corner accents
Linear Alignment	Arrange in a row along a pathway, wall, or deck edge. Creates rhythm and order.	Driveways, walkways, borders
Staggered Heights	Place on different levels (steps, plinths, or ground) for layered depth.	Sloped gardens, tiered patios
Scattered Placement	Distribute planters throughout the garden as individual accents tied together by material.	Large gardens, free-flowing designs
Flanking Entryways	Place two matching sizes at an entrance, with the third as an accent.	Doorways, gates, archways

Frequently Asked Questions

Q1: Will Corten steel rust and stain my patio?

A: Yes, during the initial weathering phase (the first few months), there may be some light rust seepage. To protect light-colored surfaces, we recommend placing planters on stands, using drip trays, or choosing pre-weathered or sealed surfaces. Once a stable rust layer has formed (6–12 months), the rust seepage will stop.

Q2: Do the Corten planters need liners?

A: For most outdoor plants, liners are not necessary. Weathering steel is safe for direct contact with soil. However, if you plan to move the planters frequently or wish to protect sensitive root systems, we recommend using removable plastic liners.

Q3: How do I clean the planter?

A: The Corten steel requires no cleaning. If debris accumulates, simply rinse with water. Do not use scouring pads or chemical cleaners.

Q4: Can it be used indoors?

A: Yes, but we recommend choosing a sealed surface to prevent rust dust or seepage. When using indoors, please plug the drainage holes or use a liner and tray.

Q5: What is the approximate capacity?

A: Approximately 30–35 liters (depending on the thickness of the drainage layer).

Q6: What is the steel thickness?

A: The standard thickness is 2.0 mm to 3.0 mm, offering excellent rigidity and durability. Thicker specifications are available for commercial use.

Q7: Can the dimensions be customized?

A: Absolutely. We offer custom sizes, shapes (round, rectangular, conical), and surface finishes.

Q8: What is the weight when filled with soil?

A: Approximately 50–70 kg, depending on soil moisture content. Please have two people handle it when fully loaded.

Why choose weather resistant steel flower basin?

1. Weathering steel has excellent corrosion resistance, making it an ideal material for outdoor gardens. It becomes harder and stronger with time;

2. AHL CORTEN steel basin no maintenance, no worry about cleaning and service life;

3. Weather resistant steel flower basin design is simple and practical, can be widely used in garden landscape.

Application