Gravel Grid, 75mm Depth, 5.2 x 2.7m, 853kg Per Sq ft Grass Ground Retainer, Permeable Geo Grids Driveway Stabilization, for Garden, Patio, Walkway, RV Parking SlopesProduct Features 3 Inch Gravel Grid Size: Each unit measures 17. 06 ft long x 8. 86 ft wide, covering 151. 15 sq ft. The smaller units of 9. 65in x 8. 27in stabilize gravel or soil within each grid cell. The 3 inch deep ground grid is ideal for creating a firm surface on slopes or flat areas (especially on soft or unstable terrain). It also helps avoid further erosion and allows immediate foot or vehicle traffic Cuttable HDPE Our geo grid is made from