VERSA-LOK segmental retaining walls are made from high-strength concrete units, dry-stacked, interlocked with pins, and set on granular leveling pads. These mortarless walls do not need frost footings. And when stabilized with geogrid soil reinforcement, VERSA-LOK walls can be built 50 feet tall and even higher. From intricate landscaping features to tall, commercial walls, VERSA-LOK delivers your best value in segmental retaining wall solutions.