The open and spacious 3-tiered shelf measures at 25.20"W x 11.22"D x 42"H when assembled, with a clearance of 12". The top shelf measures 25.20"W x 11.22D, while the other shelves are 23.62"W x 11.14"D x 12"H. It is constructed from a mix of solid and composite wood in an espresso finish. Some assembly is necessary.