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Square Link Flat-Pack Corten Steel Planter (Without Base)
Flat-pack for easy delivery and on-site assembly
Our planters are delivered flat-packed making them easy to carry through narrow gates, side passages and tight access. Assemble on-site quickly and easily with the included fixings.
Fits Through Narrow Access
Designed to fit through tight spaces where welded planters can’t.
Ideal For roof terraces & courtyards
Perfect for landscaping projects with restricted access or weight limits
Supplied with all fixings and instructions for quick on-site installation
Easy self assembly
Premium Corten Steel
Made from durable weathering steel that develops a beautiful rich patina
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SPECIFICATIONS:
Manufactured from premium Corten weathering steel.
Available in 1.5mm or 2mm steel, depending on planter size.
Supplied as a flat-pack for easy transportation and on-site assembly.
Bottomless design promotes healthy root growth and natural drainage.
Optional steel base available separately for installations on patios, paving, decking, balconies or roof terraces where a contained planter is required.
Precision-engineered bolt-together construction.
Includes all required fixings and assembly instructions.
Suitable for residential gardens, commercial landscapes and commercial projects.
Designed for year-round outdoor use.
Supplied in an unrusted state – the natural weathering process typically takes 4–5 months, depending on local weather conditions
If desired, apply Owatrol Oil once the natural patina has fully developed to enhance the appearance of the weathered steel and help preserve its finish.
INSTALLATION & CARE:
Unpack your Square Link Flat Pack Planter immediately after delivery to allow any trapped moisture to escape. Leaving the product wrapped may cause uneven weathering.
Assembly instructions included with each planter.
Position the planter on a firm, level surface before filling with growing medium.
As the steel naturally weathers, some rust run-off is normal during the patina development process.
Clean annually by rinsing away dirt and debris with clean tap water.
Installing near the coast? Corten Steel performs best inland. If your property is within approximately 2 km (1.2 miles) of the coastline, salt-laden air can accelerate corrosion. Read our guide to Corten steel in coastal environments to learn whether the planter suitable for your location.
Prefer the finished look from day one? Enquire about our pre-weathered & Owatrol treated options. Your planter will arrive with a beautifully developed rust patina and be treated with Owatrol Oil to help protect the weathered finish.
PLANTING ADVICE:
Ensure proper drainage.
Do not use hydro pellets to retain moisture.
When using planters with a base, fill the bottom of the planter with a layer of gravel (Ø35 mm grading, approx. 10 cm).
Place a permeable anti-root membrane over the gravel.
Cover the membrane with growing medium suitable for your chosen plants.
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Square Link Flat-Pack Planter – Modern & Space-Smart Design
Designed for contemporary outdoor living, the Square Link planter combines minimalist style with practical versatility. Its double-turned edge delivers a robust yet refined look, while the simple self-assembly design makes it perfect for urban spaces where flexibility matters.
Why the Square Link Flat-Pack Corten Steel Planter Works Perfectly for Balcony & Rooftop Gardens:
Lightweight & Easy to Transport – Flat-pack design makes it ideal for carrying upstairs or through tight spaces.
Space-Efficient Assembly – No bulky pre-built planters; assemble it right where you need it.
Customizable Layout – Arrange multiple planters as privacy screens, windbreaks, or modular greenery walls.
Sleek & Sturdy – The reinforced double-turned edge withstands wind and weather, even in elevated spaces.
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This product is built to provide many years of reliable outdoor use and is backed by the following manufacturer warranties:
5-year structural warranty
PLEASE NOTE:
Products are supplied without their final rusted finish. The natural weathering process typically takes 4–5 months, depending on local conditions.
Some rust run-off during the weathering process is completely normal.
Modifying the product by drilling, grinding or making alterations outside the manufacturer's recommendations will invalidate the warranty.
Need advice before or after your purchase? We're happy to help with installation, maintenance and product support.
Designed for gardens with difficult access
Unlike fully fabricated and welded planters, our flat-pack Corten steel planter can be carried through narrow side passages, gateways and restricted-access gardens before being assembled on site. This makes it ideal for courtyards, roof terraces, urban gardens and landscaping projects where large fabricated planters simply cannot be delivered.
The bottomless design also makes this planter ideal for olive trees, ornamental trees, shrubs and large planting schemes where unrestricted root growth is important.
Frequently Asked Questions
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Yes. Unlike traditional welded planters, this planter is supplied flat-packed for easy transportation and assembly on site. It is ideal for narrow side passages, restricted-access gardens, courtyards and roof terraces where large fabricated planters cannot be delivered.
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Yes. The planter is supplied flat-packed and is designed for straightforward assembly using the supplied fixings. Full assembly instructions are included.
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Yes. The bottomless design allows roots to grow directly into the ground while retaining the appearance and benefits of a raised planter. This promotes healthy root development and natural drainage.
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These planters are ideal for ornamental grasses, shrubs, olive trees, multi-stem trees, perennials and larger planting schemes where unrestricted root growth is beneficial.
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Yes. The flat-pack design makes transportation and installation much easier in locations with limited access, including roof terraces, courtyards and urban gardens. Bases for the planters can also be purchased separately.
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Yes. We offer an optional pre-weathering service which accelerates the natural rusting process before delivery. This allows you to enjoy the distinctive Corten steel appearance immediately rather than waiting for the steel to weather naturally.
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Yes. We offer an optional Owatrol protective coating for weathered corten steel. Once applied, it helps preserve and stabilise the natural patina, enhancing the rich weathered appearance while protecting the finish from the effects of the elements.
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The weathering process typically begins within a few weeks and develops over several months depending on local weather conditions. Wetter environments generally accelerate the process.
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Corten steel develops a protective outer patina that helps protect the underlying steel from further corrosion. When used appropriately, Corten steel planters can provide decades of service.
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Corten steel performs best inland. If your property is within approximately 2 km (1.2 miles) of the coastline, salt-laden air can affect the formation of the protective patina.
If you are planning a coastal installation, please contact us for advice on the most suitable option. You can also read our guide to Corten steel in coastal environments to learn whether it's suitable for your location.
Customer Reviews
“I recently messaged Rust and Roast on their Facebook page about ordering, Michael responded very quickly and was super helpful. I placed my order and it took a few weeks to arrive, The planters were a little bit fiddly to put together with no instructions But it was pretty self-explanatory to be honest. The planters seem sturdy. I ordered two 2 meter planters, They’ve been in around two weeks now And are already starting to rust. Our garden project isn’t finished yet, nowhere near. But these were our starting point. Highly recommend this company, Customer service is outstanding, even checked once the order had arrived if everything was okay.”
“Purchased a Corten steel water table and edging. Absolutely beautiful addition to the garden. Really good quality - incredibly well fabricated. Highly recommend!”
Can Corten steel be used in coastal UK gardens? Learn how salt air affects weathering steel, how the protective patina forms, and how to protect Corten steel near the sea.