Strong 16 gauge tubular steel frame folds and nests for space saving storage. 42″ x 30″ bottom shelf folds up and right side folds in forming an “L” shape for easy, compact storage. 6″ x 2″ mold-on rubber casters, 2 swivel, 2 rigid. Durable gray enamel finish. 43″W x 32″D x 67″H overall. Easy assembly. A Maximum of 3 Optional Shelves can be used per Storage Cart. Shelves can be placed in 3 Positions above the Lower Shelf: 14-1/4″, 23-3/4″ & 43-1/4″.