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Corten Planter Box
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Corten planter boxes are widely used in gardens, terraces, and urban landscapes for their durability, low maintenance, and natural rusted appearance. Understanding their typical dimensions and manufacturing process is essential for selecting the right product and ensuring long-lasting performance.
Common Sizes of Corten Planter Boxes
Corten planter boxes are available in various shapes and sizes to suit different plants and design requirements.
| Shape | Typical Dimensions (L × W × H) | Notes |
|---|---|---|
| Rectangular | 1000 × 400 × 400 mm | Small garden edges or decorative planters |
| Rectangular | 1200 × 500 × 500 mm | Medium raised beds for shrubs or flowers |
| Rectangular | 2000 × 600 × 600 mm | Large garden installations or modular designs |
| Square | 400 × 400 × 400 mm | Small decorative planter |
| Square | 600 × 600 × 600 mm | Medium standalone planter |
| Round | Ø500 × 500 mm | Suitable for flowers or small shrubs |
| Round | Ø800 × 600 mm | Medium trees or shrubs |
| Custom | Variable | Tailored to garden or urban design |
Height considerations:
Shallow (300–400 mm): Flowers, herbs, small plants
Medium (500–600 mm): Shrubs, vegetables
Deep (600–800 mm+): Small trees, larger plants
Material thickness: Typically 2–6 mm, depending on size and soil weight.
Manufacturing Process of Corten Planter Boxes
Cutting
Sheets of Corten steel are cut to size using laser cutting, plasma cutting, or water jet cutting.
Ensures precise dimensions and allows for custom shapes or patterns.
Bending / Folding
Press brakes or folding machines are used to form edges and corners.
Provides clean lines for rectangular or square planters.
Welding / Assembly
Pieces are joined using MIG or TIG welding.
Essential for structural strength, especially in larger planter boxes.
Drainage Preparation
Holes are added at the base to prevent water accumulation.
Supports healthy plant growth and prevents root rot.
Patina Formation
The steel is left to oxidize naturally, forming the characteristic rusted layer.
This patina protects the planter from further corrosion and enhances visual appeal.
Optional Finishing
Edges can be smoothed or rounded for safety.
Custom cutouts or decorative patterns can be added during cutting or welding.
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