Geogrid is a planar, polymeric product consisting of a mesh or net-like regular open network of intersecting tensile-resistant elements, called ribs, integrally connected at the junctions. The ribs can be linked by extrusion, bonding or interlacing; the resulting geogrids are respectively called extruded geogrid, bonded geogrid and woven geogrid.

Geogrids are classified into the following two categories based on the direction of stretching during their manufacturing.

• Uniaxial Geogrid:  A geogrid produced by the longitudinal stretching of a regularly punched polymer sheet, and therefore it possesses a much higher tensile strength in the longitudinal direction than the tensile strength in the transverse direction
• Biaxial Geogrid:  A geogrid produced by stretching in both the longitudinal and the transverse directions of a regularly punched polymer sheet, and therefore it possesses equal tensile strength in both the longitudinal and the transverse directions
• Triaxial Geogrid: Triaxial Geogrid has a stable triangular structure and a specially designed Geogrid. Triaxial Geogrid is normally made of high density Polyethylene. It has got good creep resistance and high tensile strength. It is used for Ground Improvement and also for improvement of performance of the Road Pavement