Physical Dimensions: Spine: 186.1 cm (73-1/4 in.), Widest point perpendicular to spine: 67.9 cm (26-3/4 in.) Depth: 18.5 cm (7-5/16 in.); 3-octave span: 47.5 cm (18-11/16 in.), Sounding lengths (plucking point): GG 146.5 cm (57-11/16 in.) [18.3 cm 7-3/16 in.]; c2 27.6 cm (10-7/8 in.) [10.3 cm 4-1/16 in.]; [ g3 8.9 cm (3-1/2 in.) [4.8 cm 1-7/8 in.]