Height of strings at first fret

String Height at the Nut1st Fret J45 nut slot height I showed here how I lowered nut slot height due to high action on the first fret of my Yamaha nut slot depth So then the nut becomes the lowest angle But each fret along that line only needs to clear the fret above it So if all the frets are the same

nut slot files However if you have a vernier caliper you can measure the height of the nut from the base to the slots for the high E