Physical Dimensions: Total length: 89.8 cm (35-3/8 in.); Width: upper bouts: 16.6 cm (6-9/16 in.); Middle bouts 13.1 cm (5-3/16 in.); Lower bouts: 17.7 cm (6-15/16 in.); Total depth: 16.8 cm (6-5/8 in.); Keyboard span: approx. 29 cm (11-9/16 in.); Vibrating length of strings: approx. 29 cm (11-9/16 in.)