Mayne 5867-B Lakeland Square Patio Planter, 20x20, Black Inside dimensions are 16"l x 16"W x 13.5"D, outer dimensions are 20"W x 20"d x 20"H Soil capacity is approximately 11.5 gallons (43 liters), water capacity is approximately is 8.75 gallons (33 liters) 15 Year Warranty - residential application, 5 Year Warranty - commercial application Made in the USA