The Botanicare Pallet Rack Tray 4 ft x 8 ft is designed to fit standard (42 in wide x 96 in length) pallet racking or shelving. Utilizing racking for vertical propagation allows you to take advantage of overhead space, reducing your cultivation footprint by up to 50%. Specially designed features allow this tray to sit flat on the pallet racking with a trough that hangs slightly over the edge. This trough collects runoff then directs it towards the bulk head recess to reduce standing water. The Rack Tray is perfect for large scale microgreen or propagation production accommodating sixteen 10 x 20 prop flats. The 93 inch length allows trays to be palletized vertically in quantities of 30 on a standard 40 in x 48 in pallet.