What advantages are there to using a pinned system?
Unlike other retaining wall products. Keystone’s pinned system offers the choice of near vertical or one inch setback options. It allows you to achieve tight comers and radii automatically without having to cut units while maintaining the running bond pattern. The Keystone fiberglass pins also provide additional shear strength at the wall face and positive connection with geogrid which allows proper pre-tensioning and resistance to bulging during construction.