Mayne Fairfield 36" Window Box Combo with Corbel Brackets - Black 3' Dimensions: 36" L x 11" W x 10.8" H (plus corbel height of 6") Our molded plastic planters are made in the USA from high-grade polyethylene, double wall design Sub-irrigation water system, encourages root growth Inside dimensions are 32"L x 7.5"W x 8"D, approximately 6.5 gallon soil capacity Includes two decorative "corbel" type brackets in matching color.