Aluminum pillars, stainless steel floor spikes, .86-inch thick MDF shelves, each supports up to 130 pounds. All racks are 23w x 16.9d with inner shelves 19.7w x 16.9d. Space between shelves is 8.26-inches.
4 Shelf Audio Rack 31.6 inches tall - Black
5 Shelf Audio Rack 40.86 inches tall - Black