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Is an interlocking porous modular grid system which is SUDS (sustainable urban drainage system) friendly.  This allows the dispersion and drainage of excess rain and flood water.  It can be infilled with gravel or planted out in grass to provide a porous, stable surface suitable for vehicular or pedestrian traffic.

Irwins agrablock ensures that gravels of up to 20mm are retained within the cell walls, which stop them migrating.  When planted out in grass provides an ideal environment to thrive and the cellular structure helps protect the roots from heavy traffic.

It provides a more secure surface for driving, walking or cycling over.  It has a load bearing capacity rated 360 tonnes pm2, so will cope with practically any vehicular traffic that it is likely to encounter.  Irwins agrablock is manufactured to ISO 9001/2008.  It is manufactured from 100% recycled polypropylene.


Some uses include:

Access roads, Car parks, Verges, Footpaths, Caravan Parks, Steep hills, Pedestrian areas, Vehicle hardstanding’s, Bases for sheds, Golf buggy path, Driveways


  • Dimensions 500mm x 500mm x 40mm
  • Manufactured to ISO 9001 / 2008
  • Colour Black
  • Gravel per m2 65kg
  • Suitable for Natural Aggregates and Grass
  • Manufactured in Ireland
  • Load Bearing Greater Than 360 Tonnes/pm²

Quality Products & Quality Service

Irwins Quality Aggregates offer one of the most extensive ranges of decorative aggregates in Ireland. Irwins can offer a large range of dry dash render stones available with accompanying sands.

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  • Premier Quality
  • Innovation
  • Customer Service & Support
  • Industry Expertise

Shipping & Returns Policy

Irwins do not deliver bagged products to private houses. We rely on our network of Builders Merchants throughout Ireland. We can deliver bulk loads for contracts and merchants. Loose bulk loads can be delivered direct if required.

Irwins Quality Aggregates without prejudice, operate a NO RETURNS POLICY for all bagged & Bulk Deliveries. Note: Agreed exceptional returns will incur a 25% Handling Charge

Get in touch to discuss options.

Working to Standards

ISO 9001 and ISO 14001 Registered Company.

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