











Corten steel retaining wall outside corners 45°
Outside corner 45° – corten steel 🌿
Create precise and elegant 45° angles in your retaining walls with an outside corner in bent corten steel.
The corner element provides a beautiful and stable outward transition in your construction, making it easy to build professional and durable structures with a refined, cohesive look.
The warm, rust-coloured patina of corten steel adds depth and character to your garden, while the folded construction ensures extra strength and long-lasting stability.
A timeless choice in Danish design and craftsmanship – perfect for both private gardens, parks, and landscape 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 harmonious and cohesive 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 external 45° joints
Surface: Delivered with a light oil film – patinates naturally over time
Application: For landscape edging, retaining walls, and architectural garden designs
| 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 a harmonious and uniform look in your garden.
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 develops from light orange to warm rust tones during the first months.
💡 To speed up the patination process, lightly spray the surface with a mild saltwater solution.
An outside 45° corner adds flexibility and finesse to your retaining wall design.
It creates fluid, cohesive lines and elegant transitions, whether used for level changes, planting areas, or flower beds.
🌿 Combine with inside corners and straight sections for a complete system
🏡 Design architectural shapes and soft, flowing lines in corten steel
🔥 Add warmth and modern elegance to your garden with corten’s natural tones
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 for extra strength and stability.
Can corten steel stain the surface beneath?
Only during the initial patination process – after that, staining is minimal.
What makes corten steel special?
• Exceptional durability – up to 8× longer lifespan than ordinary steel
• Aesthetic rust patina – natural protection and warm visual appeal
• Minimal maintenance – no painting or surface treatment required
• Danish craftsmanship – precision and quality in every detail
Product description
Specifications
Maintenance
Inspiration
FAQ
Assembly Instructions
Outside corner 45° – corten steel 🌿
Create precise and elegant 45° angles in your retaining walls with an outside corner in bent corten steel.
The corner element provides a beautiful and stable outward transition in your construction, making it easy to build professional and durable structures with a refined, cohesive look.
The warm, rust-coloured patina of corten steel adds depth and character to your garden, while the folded construction ensures extra strength and long-lasting stability.
A timeless choice in Danish design and craftsmanship – perfect for both private gardens, parks, and landscape 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 harmonious and cohesive 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