Similar ideas popular now
Cut to size - Gridforce gravel driveway grids can be built around existing beds, garden features and more http://www.gridforce.co.uk/ground-reinforcement-uses/driveways.html
Turfstone, "environmentally friendly pavers": "These environmentally friendly grid pavers can be filled with soil for grass growth or aggregate for drainage applications. Using Turfstone can effectively prevent soil erosion and standing water from ruining driveways, parking lots, emergency fire lanes or other large areas. At the same time, Turfstone provides the support necessary to maintain a level, beautiful surface."