Advantages: Adds strength and longevity to your wall Rolls made easy to maneuver Aids in prevention of early development of wall failure Provides excellent stress transfer Uses: Retaining Walls Steep Slopes My Supply Shed's Bi-Directional Universal Retaining Wall Geogrid for walls up to 6' is made of heavy weight, highly durable multi-filament polyester yarns woven into a secure system adjusted under tension and coated with PVC.