Diamond Pro® Air
Mortarless / pinless segmental retaining walls for tight spaces.
Lighter by Design.
Introducing Diamond Pro® Air – a revolutionary lightweight retaining wall solution that seamlessly blends strength, sustainability and simplicity.
Weighing just 24.5 kg per block, Diamond Pro® Air is our lightest 200mm high retaining wall block to date. Its innovative structure incorporates large voids to significantly reduce weight, while optimising strength, making it capable of supporting engineered walls up to 3.6 meters high.
Designed with efficiency and performance in mind, Diamond Pro® Air features a near-vertical 4° wall face for a modern aesthetic and optimal land use. Its hollow core design not only makes each unit lighter and easier to handle, but also enhances drainage performance- ideal for high-performance retaining wall applications.
This intelligent solution maximises usable space, reduces labour strain, and minimises land waste, making it the smart choice for engineers, landscapers, and contractors.
This lightweight range offers a premium aesthetic at a cost-effective price, providing impressive savings to our other walling options. Its innovative design includes locator lugs that simplify installation, ensuring a secure interlock between blocks while eliminating the need for costly metal pins, helping you stay within budget.
When built in stretcher bond, the system can accommodate light fencing (subject to design). Additionally, the blocks allow drainage to be incorporated directly within the block, making them ideal for low-height gravity walls.
Available in a Stone Cut™ finish in a variety of warm earth tone colours.

Available Colours
Available Profiles
How-to-build Diamond Pro® Air Reinforced Segmental Retaining Walling.
A straightforward guide to building our reinforced segmental retaining walling. For more information, contact AG.
Description
Warm earth tone colours with a natural textured appearance in a Stone Cut finish. The Cap Block has a Smooth finish.
Sizes
DIAMOND PRO® AIR – BLOCK:
L 450* x D 290 x H 200mm
DIAMOND PRO® AIR – CORNER BLOCK:
L 450 x D 225 x H 200mm
DIAMOND PRO® AIR – CAP BLOCK:
L **450 x D 312.7 x H 100mm
* The Diamond Pro® Air Block ‘short side’ is 285.75mm in length.
** The Cap Block ‘short side’ is 300mm in length.
More Information
hEN 771-3:2011+A1:2015
Walls greater than 1m in height should be designed by a suitably qualified engineer. Use of a suitable concrete adhesive is recommended to affix caps and partial units.
Minimum order quantities are required for certain sizes, depths, colours, etc. Before placing an order, please speak to one of our sales teams – they’ll be happy to advise on this and any other product questions you may have.
You can reach them on:
UK: 0121 747 0202 | Ireland: +44 (0)28 8778 8112
Discover the benefits of Diamond Pro® Air.
The next generation in Segmental Retaining Wall Solutions.
Case Studies
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Why AG Professional?
Superior Quality
At AG we pride ourselves on superior quality and exceeding our customers’ expectations. Product quality is continuously being monitored and improved to provide the best quality products for our customers.
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The AG team have a wealth of experience and knowledge to share with our customers and clients. Our Technical Department is here to help – we pride ourselves in providing an unmatched level of support to make sure that all our customers get the best advice and the best possible solution for their projects.
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At AG we believe in unrivalled support and will closely monitor and support every process from design concepts and specifications to fully indemnified engineered designs. From product supply and installation, to delivering samples, site meetings and technical support, AG will be with you on this journey.
Easy Spec
We offer a fast and easy specification service with our Sales and Specification department on hand to help with any queries. We have partnered with NBS Source which provides key specification information at your fingertips in platforms such as RIBA Product Selector and NBS Chorus. This delivers relevant product information, literature, case studies and certificates to our clients at a more effective level.
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Our team from our sales department to our despatch office work closely with customers to create a dedicated call off plan for your project. Detailed delivery planning will be scheduled around clients’ needs to ensure we provide the best customer service.
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AG have a strong commitment to the link between a sustainable environment and our local Community. In line with our Corporate Social Responsibility Strategy AG defines sustainability as the intrinsic balance between the social, economic and environmental aspects of our business operations. We have established a Net Zero Carbon team with the aim of reducing carbon emissions and are committed to producing low carbon products in our strategy.