Grow all your favorite herbs, plants and vegetables with Greenes 4 ft. x 4 ft. x 5.5 in. Premium cedar raised garden bed. The bed is made out of chemical free and naturally rot resistant North American cedar. It assembles without tools using the time tested and proven Greenes Fence Company dovetail design simply slide the boards into the corner posts to form the frame, attach the caps and then add soil, plants and sunshine to start growing the garden of your dreams. Greenes Premium cedar raised garden beds use a 5.5 in. H board. Premium beds can stack and expand with other with other Greenes Premium beds.