reef cubes® are designed to support and protect life on our seafloor and coastlines and can be utilised across various industries, including aquaculture, coastal defence, reef conservation, eco-engineering and subsea protection. Manufactured solely from marine-friendly materials, reef cubes are an award-winning product that offers a construction that’s kind to the environment and a design that enhances biodiversity and is scientifically backed. Whether you’re looking for nature-inclusive scour protection for monopiles or coastal defence, or you’re looking for biodiversity enhancement for your aquaculture or ecotourism site, reef cubes provide a revolutionary marine-friendly solution.
Building blocks for the ocean to enhance marine ecosystems
Boost biodiversity across your coastline with the world’s only low-carbon, plastic-free and 98% recycled solution for subsea protection and marine habitat restoration.Get in Touch
Why choose reef cubes?
Enhance marine biodiversity
Scientifically proven to enhance marine biodiversity – the design and surface are chosen specifically to act as the perfect substrate for marine flora and fauna
Marine friendly materials
Manufactured solely from marine-friendly waste material – meaning you can ensure the long-term stewardship of man-made reef systems and ocean health for future generations
Lower CO2 emissions
91% reduction in CO₂ emissions – thanks to our alkali activation, advanced casting techniques & on-site manufacturing
ARC provide services from construction to deployment – allowing us to provide you with the most cost-effective service all the way
Recycled & plastic-free materials
98% recycled materials & plastic-free – meaning there are no harmful marine plastics introduced into the environment
Efficient structural configuration
Efficient structural configuration to transfer loads without excess materials
Alkali-activated material (AAM) binder used
Created from alkali-activated material (AAM) binder produced Marine Crete, which is of comparable and superior strength to ordinary Portland cement (OPC) but without the carbon footprint
Modular and stackable; allowing for structures of any size and scale
Find out more | Download the reef cube product sheet
Looking for more information on reef cubes? You can learn about their specification, details and more when you download our product sheet.
Fill out the form to download it now and find out how you can incorporate nature inclusive solutions to enhance marine ecosystems into your next project.Download
Frequently Asked Questions
What’s the minimum number of reef cubes I can order?
We can supply from a little as one, up to quantities required for full scale project deployments. For large project these can be manufactured on site, minimising carbon emissions and logistical admin from transport.
Does ARC Marine provide monitoring to track the ecosystem benefits to my project?
We offer monitoring as an added service, utilising our in house team of marine biologists oceanographers and researchers, as well as state of the art equipment and monitoring methods. This data can be analysed and written up to meet your reporting requirements, for ESG as required.
How does the process of buying reef cubes work?
We make the process as simple as possible – just get in touch and we will provide a proposal, which you can comment on or adapt as required for your project. You can contact us at email@example.com, or simply drop us an enquiry through the form below.
How can reef cubes be installed?
Reef cubes can be installed using standard marine construction equipment, providing a range of methods to suit your site. We have designed a best practice guidance booklet to assist you with this. If your requirements are bespoke then our engineers are here to navigate the process per your unique requirements.
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“Kier have been very satisfied and pleased with ARC Marine throughout the preconstruction and construction stages of the Newlyn Tidal R&D project. ARC Marine have fabricated and delivered exceptional Intertidal reef cube® ECO armour units for the project where all parties, including Kier, the Environment Agency and Atkins, have been very impressed with the quality of finish of the units. Overall a very exceptional service from ARC Marine and would highly recommend.”
“reef cubes® is a unique product that could reach a massive global market. Marine-i has been proud to help ARC Marine develop and test their amazing new approach to marine conservation and in particular, its application to marine renewable energy. Their pioneering products have the potential to improve the health of our oceans for generations to come.”
"ARC Marine are providing 25% of the reef blocks for the Newlyn project. Their blocks offer multi-functional benefits, such as biodiversity enhancing design and low-carbon fabrication. The development of viable alternatives to carbon intensive and non-sustainable solutions such as reinforced concrete, or quarried rock, is hugely important in order to meet the EA’s organisational targets to achieve net zero by 2030. More broadly, decarbonisation of the coastal and subsea infrastructure industry will also provide an important contribution to wider UK pledges on climate change."
“The idea of a carbon-neutral reef cube® that can be used to help rehabilitate reef ecosystems is exciting – we really need to do everything we can to give coral reefs a break”