Warmoth baritones. Where does 28-5/8" come from?

[jjwu]

Is it 25.5" plus 2 frets? Like if you put a capo on the 2nd fret you'd effectively have 25.5" 22 frets?

 

[stratamania]

Is it 25.5" plus 2 frets? Like if you put a capo on the 2nd fret you'd effectively have 25.5" 22 frets?

It does in this case work out similar to that for those scale lengths.

The distance on a 25.5 from the nut to the 1st fret is 1.431" and on a baritone that is the distance from fret 2 to 3.