Building raised garden beds with cedar fence pickets from Home Depot is an affordable and eco-friendly way to enhance your garden. Cedar's natural resistance to rot and insects makes it a durable choice. By using cardboard for sheet mulching, you can create a natural weed barrier that enriches the soil as it breaks down. Follow a few simple steps to assemble your bed, fill it with nutrient-rich soil, and start planting for a thriving, sustainable garden.