Engineering Brick

Cat 30/Cat 50 Engineering Brick to hEN 771-3: 2011

Frost Resistant

Frost Resistant

Frost Resistant

Frost Resistant

Sets a new standard.

AG’s continuous investment in state-of-the-art production processes mean that even our engineering bricks outperform the standard.

Manufactured in a controlled environment to hEN 771-3: 2011, AG Engineering Brick is dimensionally accurate and frost resistant.

Available to Cat 30 and Cat 50, the product is characterised by low water absorption levels and high compressive strength. These are popular for building up manholes or internally for generator rooms, and perfect for use below or above ground level. Please note that it is not recommended to use CAT 30 or CAT 50 as a facing brick.


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Engineering Brick in situ

Available Colours


Cat 30 and Cat 50 engineered brick has a smooth finish and features a frog.


215 x 102.5 x 65mm

Note: It is not recommended to use CAT 30 or CAT 50 as a facing brick.

More Information

hEN 771-3: 2011

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

NBS Product Specifications

  • Full Spec Info
  • Create your own specifications
  • Integrated with NBS Chorus
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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.

Expert Knowledge

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.

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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.