Overall Dimensions: (72" x 90" Footprint):Shell Credenza: 72"W x 24"D x 29 1/2"HUpper Closed Shelf: 72"W x 15"D x 39"HL-Unit Extension: 66"W x 24"D x 29 1/2"HConference End: 60"W x 30"D x 29 1/2"H