backyard landscaping cobblestone driveway paving BACKYARD LANDSCAPING Unilock ® products are made to revitalize your backyard landscaping environment. Using Unilock ® wall systems for backyard landscaping applications such as retaining walls, steps and outdoor patios to and garden will add beauty to any home. Unilock products are specifically designed to create an inviting outdoor environment. Unilock products were developed to complement and enhance the look and quality of backyard landscaping elements such as pools, trees and patios. Whether creating a classic elegant look or incorporating simple modern style in your environment, there is a Unilock product and approach to design that is perfect for you.