Corten steel retaining wall outside corners 90°
Outside corner 90° – corten steel 🌿
Create precise and stable 90° angles in your retaining walls with an outside corner in bent corten steel.
The corner element ensures a strong and elegant outward transition, making it easy to build durable structures with a professional and harmonious look.
The characteristic warm rust patina of corten steel adds depth and natural charm to your garden, while the folded construction ensures extra strength and stability.
A timeless choice in Danish design and craftsmanship – ideal for both private gardens and larger landscaping projects.
✅ Danish design and production
✅ Made from 3 or 5 mm corten steel
✅ Folded construction for strength and precision
✅ Maintenance-free and weather-resistant
✅ Creates a cohesive and elegant look for retaining walls
Material: 3 mm corten steel (up to 60 cm) / 5 mm corten steel (80–100 cm)
Design: Folded corner element for an external 90° joint
Surface: Delivered with a light oil film – patinates naturally over time
Application: For landscape edging, retaining walls, and architectural garden solutions
| Height (cm) | Steel thickness | Depth (cm) | Weight per element | Fits drain hose |
|---|---|---|---|---|
| 20 | 3 mm | 30 × 30 | approx. 2–6 kg | Ø82 mm |
| 40 | 3 mm | 30 × 30 | approx. 5–12 kg | Ø82 mm |
| 60 | 3 mm | 40 × 40 | approx. 10–18 kg | Ø102 mm |
| 80 | 5 mm | 40 × 40 | approx. 15–25 kg | Ø102 mm |
| 100 | 5 mm | 40 × 40 | approx. 20–30 kg | Ø102 mm |
💡 Tip: Combine outside and inside corners with straight retaining wall modules to create strong, aesthetic constructions with a uniform design.
Corten steel requires no maintenance.
Over time, the surface develops a natural, protective rust patina that makes the steel extremely resistant to wind and weather.
🧽 Wash with mild soapy water after installation to remove the oil film.
🌦️ The patina evolves from light orange to warm rust tones during the first few months.
💡 To accelerate patination, you can lightly spray the surface with a mild saltwater solution.
An outside 90° corner makes it easy to create precise and elegant transitions in your retaining walls.
Use it to design architectural corners, terraces, and bed edges with a sharp, modern expression.
🌿 Combine with inside corners for a complete design system
🏡 Mix retaining wall heights for a dynamic look
🔥 Bring harmony to your garden with the warm tones and timeless character of corten steel
How are the corners delivered?
All corners are made to order and shipped from byJEMA within 5–10 business days.
Why is 5 mm steel used for the tallest models?
For heights of 80 and 100 cm, 5 mm corten steel is used to ensure extra strength and stability.
Can corten steel stain the surface beneath?
Only during the initial patination process – after that, staining becomes minimal.
What makes corten steel special?
• Extreme durability – up to 8× longer lifespan than ordinary steel
• Aesthetic patina – natural and warm appearance
• Minimal maintenance – no painting or surface treatment required
• Danish craftsmanship – precision, quality, and design in one
Product description
Specifications
Maintenance
Inspiration
FAQ
Assembly Instructions
Outside corner 90° – corten steel 🌿
Create precise and stable 90° angles in your retaining walls with an outside corner in bent corten steel.
The corner element ensures a strong and elegant outward transition, making it easy to build durable structures with a professional and harmonious look.
The characteristic warm rust patina of corten steel adds depth and natural charm to your garden, while the folded construction ensures extra strength and stability.
A timeless choice in Danish design and craftsmanship – ideal for both private gardens and larger landscaping projects.
✅ Danish design and production
✅ Made from 3 or 5 mm corten steel
✅ Folded construction for strength and precision
✅ Maintenance-free and weather-resistant
✅ Creates a cohesive and elegant look for retaining walls
Choose options
What our customers say about us
⭐⭐⭐⭐⭐ Reviews
“The customer service is top notch - they are incredibly helpful, always available to answer questions, and there has been a huge focus on customer satisfaction.
Overall, we can only give byJEMA our warmest recommendations. From the excellent customer service, to the durable and beautifully designed products, our experience has been positive throughout. If you are looking for quality products for your garden, byJEMA.dk is definitely worth a visit.”
Cathrine and Michell
“We now have a lot of corten in the garden, in different shapes and with different functions - all from byJEMA. The quality is good, easy to assemble and the price is reasonable!
byJEMA's design in raised beds with the curved edge at the top means that we can safely let the children play in the garden around the products without worrying about sharp edges”
Lisa Lausten
“We would like to give ⭐⭐⭐⭐⭐➕to byJEMA for their wonderful products, Danish design and TOP CLASS service.
Since then, a lot more has come into our garden from byJEMA.... Yes, we have been hit by “Rust fever”🤣
BUT the reason besides the fact that we love all their super cool products ranging from outdoor kitchen, fire pits, bed edges and much more, it is absolutely crucial in our investments with byJEMA that they provide the absolute BEST service you can wish for as a customer. I would venture to say that you won't get a better service than the byJEMA team provides to their customers.”
Maria and Bo
“We can highly recommend byJEMA.dk to anyone looking for high-quality steel planters, beds etc. and a webshop with fantastic service.
We have shopped at byJEMA.dk several times and each time, the products have exceeded our expectations with their beautiful design and quality. They fit perfectly into our garden and give a stylish look that we have been looking for.”
@ottoshave
Our promise
International (EUR)
Denmark (DKK)
Norway (NOK)
Sweden (SEK)
Germany (EUR)
Austria (EUR)