Six square trays of 9 in each take a pot apiece and hold it in place, unlike open shelves where a round base rocks. Adjustable pads under the feet level the stand on a patio slab that is not flat, which is where a loaded plant rack usually wobbles. Each tray carries 22 lbs. The frame spans 30 x 10.5 in at 34 in tall and weighs 6.5 lbs in iron - light enough to move fully loaded in stages. It suits a balcony rail, a greenhouse bench or a hallway with light from one end.