Suncast 48″ x 48″ x 18″ 6-Panel Tiered Resin Raised Garden Kit for $89.00 shipped. Here is a screenshot for your reference. It has a rigid resin construction so it is maintenance free. It can be Bbilt into multiple garden shapes. Each set has 6 long panels, 2 panels, 4 stakes and connectors. At the time of this post, 15 out of 16 user reviews have given it 4/5 and 5/5 ratings.