150 mm High. Flexible Corten Steel Garden Edging 3.00 mm
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 clean, modern garden edges that last for decades.
Our premium corten steel garden edging is designed to give your outdoor space a sharp, clean finish while developing a natural rusted patina that protects the steel over time.
Built in Christchurch for durability and style, this edging blends seamlessly into both modern and natural landscapes—perfect for homeowners and landscapers who want long-lasting results without ongoing maintenance.
Corten steel is specifically engineered for outdoor use. Instead of deteriorating, it develops a controlled rust layer ( Patina) that acts as a protective barrier against further corrosion.
This means you get the aesthetic of rust with the strength of steel—making it one of the most reliable materials for landscaping in New Zealand conditions.
Measure the total length of your garden edge (in metres), then divide by the length of each edging piece to calculate how many you need.
Tip: Always order slightly extra to allow for curves and adjustments.
Our corten steel edging is trusted by homeowners and landscapers across NZ for its durability, strength, and timeless appearance. It’s designed to handle harsh weather while maintaining its structure and finish for years to come.
Upgrade your outdoor space with a clean, professional edge that enhances both function and design. Whether you're refreshing a small garden bed or completing a full landscape project, this edging delivers long-term results with minimal effort.
Order now to create a landscape that looks better and lasts longer.
