Maximum options in a minimum of space. The deep 11-inch section is great for growing tall veggies or flowers that need strong root systems (like tomatoes), and equally useful for root vegetables like carrots or garlic that need depth to develop freely. The 5.5-inch section works perfectly as an herb garden. This garden gives you plenty of space and options to grow a complete salsa or spaghetti sauce garden. Grow an amazing berry garden, with blueberries, raspberries, or currents planted on the top level, and strawberries planted below. Snap-lock joints make it simple to install. Your kit comes with everything you need except the soil and plants. Each modular kit includes ten of our straight composite boards and five of our snap-lock stacking brackets. The insulating open-channel boards trap air, providing insulation to your soil. Keeps soil warmer in the spring and fall, and cooler in the summer, so you can grow for an extended period. Stacking brackets allow you to install the additional layers of your garden just by inserting the stakes into the brackets below.