Grid Size : 500 x 500 x 40mm approx. Weight: 1.05kg each grid. High strength (up to 400 t /m²) Grid Size : 500 x 500 x 40mm approx. Weight: 1.05kg each grid. High strength (up to 400 t /m²) This interlocking ground and grass reinforcement product is successfully used in many applications, including green car parking areas, overflow car parks, gravel drives, driveways, private lanes, access roads, construction sites, greenhouse soakaway, and as a base for decking, log cabins and garden sheds. Tough, flexible and easy to install making TrueGrid the professional choice for a wide range of projects. Manufactured from 100% recycled plastic diverted from landfill, the environmental and sustainable solution of choice. Use water permeable Woven Weed Control Fabric under pavers for control of weeds and as a geotextile separator stabiliser. Can be filled with many materials: soil, grass turf, gravel, stones, and sand. Surface reinforcement with natural drainage. Minimal maintenance. Up to 14 tons axle load (on suitable base). 35mm ground spikes resist lateral forces caused by vehicles, Manufacturer: True Products