a convenient easy - to - maneuver assembly provides a user - friendly gardening center , work bench and cart . the assembly can be readily arranged to fit the needs of the user . the preferred assembly features a table with an ergonomic handle , a wheeled base , and strong composite posts comprising metal tubes encased within impact - resistant plastic sleeves . preferably , the versatile assembly has interchangeable modules or inserts , such as bins , grates and cutting boards , which can be placed on the table and function as shelves between panels or walls that extend between the base and table . for further capacity and versatility , the assembly can have a superstructure comprising a riser shelf that is positioned above the table .