With a depth of 5 inches and a large internal capacity of over 20 gallon this 40 inch Square Tray features a series of shallow horizontal ridges on the internal base of the tray which aid drainage from potted plants. Besides gardening the tray is equally useful as a commercial drip / spillage tray for oils and chemical storage a sand pit for kids and a mixing tray for cement to name a few. Trays of this size and strength are very hard to find. Made from recycled polypropylene! 40″L x 40″W x 5″H 8.25lbs