Set the intonation
S-style · 25.5" scale · 10–46 strings
Step 1 of 5
Whole guitar
Fresh strings first
1. Check the basics
- Intonation only holds with fresh strings. Old strings can't be intonated reliably: change them first if they're more than a few months old or look dull. See the change strings guide.
- Set the neck relief and the action first. Changing either one changes the intonation.
2. Tune to pitch
- Tune every string with the built-in tuner.
- Hold your phone close to the strings, around the pickups, in a quiet room.
3. Compare and adjust each string
Using another tuner? Compare the two notes and tell us what it shows:
0 of 6 strings in tune
- Pick a string.
- Play the harmonic at the 12th fret: touch the string lightly right above the 12th fret wire, pick it, then lift your finger.
- Now press the string down at the 12th fret and pick it again.
- The gauge shows how far the fretted note is from the harmonic.
- Sharp: the string is too short. Turn the intonation screw clockwise to move the saddle away from the neck.
- Flat: turn it anticlockwise to move the saddle towards the neck.
- Re-tune and listen again. Repeat until it's within ±5 cents, then go to the next string.
4. Re-tune and check again
- Moving one saddle changes the tension on the others a little. Tune all strings again and run one more quick check on each.
5. Play-test up the neck
- Play a few chords low and high on the neck (for example an open E and the E barre chord at the 12th fret). They should sound in tune with each other.