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National Building Specification Product Data Sheets

The Concrete Block Association (CBA) is the trade body representing an industry producing around 60 million m2 of dense and lightweight aggregate concrete building blocks per year.

Concrete blocks continue to adhere to all relevant building regulations and are available in various strengths, weights, and surface textures. It's not surprising that they continue to be the best selling house building block in the UK, recommended by architects and specifiers as the block to use for a successful build.

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One of the CBA's key aims is to provide the designer, specifier and builder with accurate and up to date information regarding the selection and use of aggregate concrete blocks in construction.

The CBA have published a series of data sheets, which offer useful and detailed technical guidance on many typical block applications. We hope the data sheets are a useful source of information for you. If you have any further queries or would like guidance on a specific project, please email us at or telephone the CBA helpline on
0116 2221507