Action is the distance between the strings and the fretboard. A lower action will make the strings easier to play, but it can also affect the intonation of the guitar.
Intonation is the adjustment of the saddles on the bridge so that the strings are in tune at all positions on the neck. If the action is too low, the strings may be too close to the fretboard and will not vibrate freely. This can cause the intonation to be incorrect.
To avoid intonation problems, it is important to set the action to a comfortable height. You may need to experiment with different action heights to find what works best for you.
Here are some tips for setting the action on your guitar:
- Start with the action set to a medium height.
- Play the guitar and adjust the action until it is comfortable to play.
- Check the intonation of the guitar at the 12th fret. The tuner should read the same pitch at the open string and the 12th fret.
- If the intonation is incorrect, adjust the intonation screws on the bridge.
- Repeat steps 3-4 until the intonation is correct.
By following these tips, you can set the action on your guitar to a comfortable height and avoid intonation problems.
Here are some additional things to keep in mind about action and intonation:
- The higher the action, the more likely the intonation will be correct. However, a higher action can make the strings more difficult to play.
- The type of strings you use can also affect the intonation. Heavier strings will require a higher action than lighter strings.
- If you have a tremolo bridge, it is important to adjust the action after you make any changes to the tremolo.
By understanding how action affects intonation, you can set up your guitar for optimal playability and sound.

