Built to last
3mm certified weathering steel made for decades of outdoor use.
3mm weathering steel
Made in Christchurch
NZ Made
Free Delivery Nation Wide
Why TerraEdge
Heavy-duty 3mm corten edging, made in Christchurch for New Zealand landscapes.
3mm certified weathering steel made for decades of outdoor use.
Creates smooth flowing curves while remaining strong and stable.
Develops a natural protective patina that improves with age.
Designed and manufactured in Christchurch for New Zealand conditions.
Why 3mm matters
Not all steel edging is created equal. TerraEdge uses heavier material and stronger connections for better long-term value.
| Feature | TerraEdge 3mm Corten | Common 1.6–2mm edging |
|---|---|---|
| Steel thickness |
3.0mm
|
1.6–2.0mm
|
| Strength & stability |
Excellent — holds its shape
|
More prone to bending and warping
|
| Joining |
Flush joins with countersunk bolts and nuts
|
Press-fit or lightweight joiners
|
| Expected lifespan |
Decades, not years
|
Often replaced sooner
|
| Warranty |
10 years
|
Often 1–2 years
|
| Made in New Zealand |
Yes — Christchurch
|
Often imported
|
| Overall value |
Built to last with better value over time
|
Lower upfront price, higher replacement cost
|
TerraEdge 3mm Corten
Common 1.6–2mm edging
TerraEdge 3mm Corten
Common 1.6–2mm edging
TerraEdge 3mm Corten
Common 1.6–2mm edging
TerraEdge 3mm Corten
Common 1.6–2mm edging
TerraEdge 3mm Corten
Common 1.6–2mm edging
TerraEdge 3mm Corten
Common 1.6–2mm edging
TerraEdge 3mm Corten
Common 1.6–2mm edging
Built differently
Small construction details make installation cleaner and help the finished edging stay straight, square and secure.
100mm deep
Stronger ground hold and improved stability along each run.
3mm steel
Creates a strong connection that helps adjoining lengths stay aligned.
Folded corner
Folded 3mm corner joiners form clean, durable internal and external corners.
Clean finish
Fasteners sit flush with the edging for a tidy, snag-resistant finish.
Create flowing garden borders, natural curves and beautifully defined outdoor spaces with our TerraEdge Flexible Landscapers Package – a complete edging solution designed for larger landscaping projects.
Perfect for garden beds, tree rings, pathways, lawn separation, planting areas and landscape designs featuring sweeping curves, this package combines the flexibility of TerraEdge Flexible Garden Edging with all the essential installation components required to achieve a professional finish.
Manufactured from premium 3.0mm Corten Steel, TerraEdge Flexible is designed to follow the natural curves of your landscape while maintaining exceptional strength and durability. Whether you're creating gentle curves around garden beds or defining expansive outdoor spaces, TerraEdge Flexible makes it easy to achieve clean, consistent borders that enhance the overall appearance of your landscape.
Ideal for professional landscapers, builders, developers and homeowners undertaking larger projects, this package provides enough edging to transform substantial outdoor areas while maintaining a cohesive and polished look throughout the property.
TerraEdge Flexible allows you to create natural curves, soft transitions and organic landscape shapes that complement your outdoor environment.
Whether you're framing garden beds, surrounding mature trees or creating elegant flowing borders throughout a landscape project, TerraEdge Flexible provides the versatility, strength and premium appearance trusted by landscapers across New Zealand.
Create curves. Define spaces. Build landscapes that stand out.