4-STRING 5-STRING FINGERBOARD RADIUS 14 inch 14 inch WIDTH ZERO FRET 39.5 mm 45 mm THICKNESS 1ST FRET 20 mm 20 mm WIDTH 22ND FRET 63 mm 73 mm BRIDGE STRING SPACING 18.5 to 20 mm 18 to 19.5 mm SIZE FRETS 2.5 mm 2.5 mm NECK PROFILE c-shape c-shape