This landscape system consists of a grid and composite brick that allows contractors to construct outdoor areas quickly and easily. Both the grid and the bricks are made from up to 95 percent recycled car tires and plastic containers. Measuring 4 inches by 8 inches, the bricks can be installed in large areas quickly, and their light weight makes them good for rooftop decks. Cost: $6.99 per square foot. VAST Enterprises. 612-234-8958.