6) Measuring to the 12th fret of the guitar

By starting from the Nut, measure down to the guitar neck's 12th fret.

On this example, we have 31.5 cm. So to find out where to place the new guitar bridge on the guitar body; you double or multiply the measurement by 2, which equals 63 cm in this case.

NOTE : There are several different sized necks for different guitar brands. For example Fender, Gibson, and Airline guitars have 3 different sizes. This Airline Town and Country has a short scale fretboard.

RESULT : It can be any sized neck, as long as you measure from the Nut to the 12th fret. Then multiply the measurement by 2.