How to Adjust the Intonation on an Electric Guitar

Like any other fine musical instrument, electric guitars need regular adjustment and tuneups to stay in optimum playing condition. Some of these adjustments can be easily accomplished by the owner, while other, more complicated work should be left to an experienced professional. Adjusting the intonation of your guitar is a fairly simple process that can greatly improve your playing experience. In this article, you will find step-by-step instructions for fine-tuning your intonation without the need for professional involvement.

Difficulty: Moderately Easy

Instructions

Things You'll Need:

• Strings
• Tuner (analog or digital)
• Screwdrivers
• Allen wrench

1. Put on new strings and tune your guitar to the standard (E-A-D-G-B-E) using your tuner. Do not use the 5th-fret method, as this will not provide a completely accurate tuning. Allow the strings to settle for a few minutes and re-tune the guitar. Repeat this step until your new strings have had the opportunity to stretch and settle into tune. Do not move on to Step 2 until your new strings hold tune.

2. Check your initial intonation by fretting each string at the 12th fret and playing it as you would normally. The tuner should give the exact same reading as if you played this string in the open position. If not, your intonation will need to be adjusted. Again, this is where an electronic tuner will provide a precise reading.

3. Begin your adjustment by playing the low E string on the 12th fret and determining if it is flat or sharp. If it is flat, use your screwdriver or another appropriate tool to move the bridge closer to the neck, thus raising the pitch by shortening the string. If this string is sharp, move the bridge away from the neck to lengthen the string and lower the pitch. Make small changes and check the tuning frequently.

4. Repeat Step 3 for each of the remaining strings. Take your time and continue to make adjustments in small steps.

5. When you have adjusted the intonation on all of the strings, check the open tuning of the strings with your electronic tuner. Make adjustments as needed. Once you are in tune, check the reading of each string on the 12th fret. The reading should be the same in the open position and the 12th fret on each string. If there is a difference, go back to Step 3 and repeat the process until all of the strings are in tune.

6. When you reach the point where the intonation seems to be correct, allow the strings to settle for a few minutes and recheck using your electronic tuner. If further adjustment is needed, repeat Steps 3 and 4 until you are happy with the results. If the instrument is still in tune, you are finished.

Tips & Warnings

• Using new strings will provide the best results.
• Make adjustments in small steps. Sometimes the smallest of changes can make a major difference.
• When fretting the strings, use the same force as you would when playing. Pushing too hard or too lightly can affect the reading you get from your tuner.
• If you normally play in open D or some other alternate tuning, use this tuning to set your intonation.
• Use a pencil to mark the position of your bridge prior to making any adjustments. This will provide a place to reset your bridge in case something goes wrong.
• If you continue to have intonation problems, have a professional check your frets and neck alignment.
• Even new strings can break during the tuning process. Exercise caution when making adjustments.
• If you don't let your strings settle prior to tuning, they can stretch later and force additional adjustments.

Resources

• More advanced tips