DIY stands for “Do-It-Yourself,” indicating that the gardener constructs the green bean trellis rather than buying a pre-made one.The green bean trellis is made from basic materials such as wooden stakes, twine or garden wire, and scissors to keep the plants upright, elevated from the ground, and facilitate the harvesting process.To construct the green bean trellis, plant the green bean plants in a row, position stakes at each end, and connect them with twine or garden wire to form a supportive structure.In summary, a DIY green bean trellis is a cost-effective and efficient method to promote the health and growth of green beans in your garden by guiding the plants to climb the trellis as they mature.