The Nestainer Storage Rack was manufactured by Flexible Material Holding and has a capacity of 2,000 pounds. Each rack has the following overall dimensions: 6'-2.5" tall, 5'-0.5" wide, and 5'-0" deep. The internal (holding / capacity) dimensions of each are as follows: 5'-6" tall, 4'-8" wide, and 4'-10" deep. The uprights are constructed of 2" x 2" steel. The racks can safely be stacked four high. Each rack has an integral pocket to be moved with a forklift. There are no double shelf models available (i.e. floor + intermediate shelf). 150 +/- single shelf racks available. FOB shipping point: Bucyrus, Ohio.