Square raised garden bed consists of four walls only, very easy to set up. All wood boards reinforced by wood strips, never worry about split over time. 11inch deep design, suitable for plant both deep rooted and shallow rooted vegetables. 4ft x 4ft growing space, fully meet small home kitchen needs. A built in 44inch tall trellis can also be supplied, thus vegetables and fruits can have more sunshine and good ventilation. Besides this single tier garden bed, there are also double tiered garden bed and triple tiered garden bed for selection.