VEVOR Gravel Grid, 2 Inch Depth, 16.4 x 6.5 FT / 5000 x 1980 mm, 1880 LBS Per Sq ft Grass Ground Retainer, Permeable Geo Grids Driveway Stabilization, for Garden, Patio, Walkway, RV Parking Slopes
No, using a 2-inch high grid for a driveway does not allow you to use less fill. The purpose of the grid is to reinforce the subgrade, making it more stable.
