1FT GROWING DEPTH: 12 inches of depth holds up to 108 gallons of soil-ideal for shallow to medium-root herbs and vegetables like thyme, dill, and more. Note: This product does not include a bottom panel OPEN DRAINAGE BASE: An open bottom promotes drainage to help prevent water and salt buildup while allowing your plants roots easy access to nutrients TOOL-FREE ASSEMBLY: Beveled steel panels come together with a set of included wingnuts and bolts with rubber edging for your added protection BUILT TO LAST: Made of powder-coated steel panels, this garden bed is the perfect, sturdy planter for romaine lettuce, cucumbers, strawberries and other seasonal crops 16 CUBIC FEET: The sprawling planting space makes this the ideal place to set up a self-contained micro-environment for unique and non-native plants