No tools required! This enormous raised garden bed gives you loads space to neatly organize a variety of vegetables， herb， fruits or flowers. As pictured， your 11-inch-high raised garden gives you lots of depth to grow both underground veggies like carrots， as well as tall plants like tomatoes. With 64 square feet of available planting area this may be all the garden you will ever need， but if you'd like to super-size your garden this kit can be converted into a 16' x 16' one-level 5.5" high raised bed. That's 128 square feet! Your kit comes with everything you need except the soil and plants. Each modular kit includes sixteen of our 1" Weathered Wood composite boards， and eight each of our 1" snap-lock stacking and anchor 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. Composite boards are made of food-grade safe recycled plastic and wood fibers. Stacking brackets allow you to install the second layer of your garden just by inserting the stakes into the brackets below. Our patented snap-lock brackets simply slide onto each end of a board and fasten securely with one snap-lock button. Brackets pivot 270 degrees， allowing endless design options. You can easily convert your bed to an octagon， just by changing the angle of the brackets. As your garden needs and expertise grow you can add on to your modular raised bed any time by purchasing additional 1" Weathered Wood tool-free kits， boards or stacking brackets to stack or extend your garden. Curved 1" boards are also available to incorporate into your design. Did you know? You can grow up to 64 different plants inside your 8' x 8' garden using "Square Foot Gardening" techniques. There are countless books and online resources available to guide you in this rewarding method of gardening.