An Examination Report on this item by Philip D. Zimmerman, PhD. can be seen here.
Height: 44 1/2 in.
Case Width: 38 3/4 in. Overall Width: 41 in.
Case Depth: 21 1/4 in. Overall Depth: 23 in.
Dimensions
Height: 44 1/2 in
Seat Height:
Width: 38 3/4 in
Depth: 21 1/4 in