Founded in 1987, VERSA-LOK Retaining Wall Systems offers solid, pinned segmental retaining walls. The company creates corners, curves, terraces, columns and stairs. It provides solid solutions estimating software that calculates the number of VERSA-LOK units and pins and quantities of geogrid and aggregate for projects. The company serves architects, engineers, contractors and homeowners. VERSA-LOK Retaining Wall Systems also offers installation services. The company provides various segmental retaining wall systems, including standard, accent, cobble, mosaic and mosette. In addition, it produces brutes for agency projects. The company offers a range of accessories, such as pins, grids, adhesives, fabrics and lifters. VERSA-LOK Retaining Wall Systems is headquartered in Oakdale, Minn.