Capacity: 4,000 lbs. , Volume: 1 cubic yard , Overall Size: 41½"W x 62"D x 37"H - These Stackable Steel Self-Dumping Hoppers are constructed of all welded steel. Each unit features; Beveled Cross Channel for easier fork entry, and a Formed Channel Bumper for added strength and protection. Options: Casters, lids, Three Way Entry and Crane Lugs.