If you are familiar with gravel driveways you will also likely be familiar with the maintenance issues with gravel migration, rutting, dirt creation, and potholes etc.. Gridmat alleviates these issues by retaining the gravel in pockets and prevents the stone movement which causes the problems.Not only is the grid extremely strong with a tested load bearing toleration of 420 tons/sq.mtr. (when empty), but it has also been geometrically designed with circular and curved linear components to withstand the stresses caused by extreme temperature changes and heavy twisting wheels of vehicles when turning.Our standard grid is environmentally friendly in that it is made from recycled material and is SUDS compliant providing all surface drainage, it is also UV, oil and fuel spillage resistant.