Run out of bench space? Bolt another 2 x 0.63 metre tier on top with this set. Each one you add lifts the rack 40.5cm higher. The box holds the frame for a single 2 x 0.63 metre ebb and flow tray plus four uprights. Same kit as the rack: 25 x 25 x 1.5mm aluminium, steel-reinforced corners, 40kg per square metre.
Stack them till you hit the ceiling and a narrow strip of floor turns into a wall of growing. The frame rails do double duty as light fixings for the tier underneath, so the lamps sit right over the salad leaves or herbs. Tray sold on its own.