Your guitar nut is a vital part of your guitar, and if it is too high, your guitar just won’t sound right. Ensuring that your guitar nut is the perfect height is essential for high-quality sound. However, you might not know the signs to look out for if you suspect your guitar nut may be too high.
Here are six signs that your guitar nut is too high:
- The tone of your guitar sounds wrong.
- Your guitar is difficult to play.
- You struggle to tune your guitar.
- Your strings are high-action.
- Some notes are sharp.
- Your guitar is easier to play when using a capo.
Let’s take a closer look at these six signs so that you know what to look out for and how to fix the problem if it arises.
Related: 10 subtle signs your guitar action is too high, how to set up an acoustic guitar neck, and how to repaint your guitar. New to this topic? Start with our step-by-step guide to cleaning and maintaining a guitar.
1. The Tone of Your Guitar Sounds Wrong
The guitar nut is an essential component of your guitar. If you are a novice, you might not be aware of this fact as the nut is such a small part. The strings of your guitar run from the tuning pegs through a slot in the nut, down the neck, and to the bridge.
Each string runs through a slot carved into the nut. If the nut is too high, it can affect the sound of your guitar. If the guitar nut is high, there will be a bigger space between the strings and the fret, whereas there will only be minimal space if the nut is low.
Nuts can be made from different materials, which can also cause the sound of your guitar to differ. So, if you decide to replace the nut on your guitar–especially for one made from a different material–don’t be surprised if it sounds a little different.
Changing the nut will, however, not cause the tone to sound wrong. If the overall sound of your guitar sounds wrong when you play it, check to see if your strings are sitting too high. Remember, it is the vibrations from the strings that run through the wood of the guitar that causes the sound output, and if the action is too high, it won’t sound right.
2. Your Guitar Is Difficult To Play
If your guitar nut is too high, it can be extremely uncomfortable to play your guitar. You will have to press down harder on the string because it is further away from the fret, and this can cause your fingers to hurt more than usual.
However, there are many reasons why your guitar can be challenging to play. So, if you are struggling to play and your fingers are aching, you may want to take a look at your guitar nut. A faulty guitar nut can even cause your guitar to rattle when you are playing it.
The guitar nut can cause an array of problems if it isn’t the correct height. Sometimes, the slots might even be too sharp and cause your strings to break. This doesn’t mean that the nut is too high, but if your strings are breaking for no apparent reason, you should have a look at your guitar nut.
3. You Struggle To Tune Your Guitar
When your nut is too high, it can be difficult to tune your guitar correctly. The slots in the nut anchor the strings in place. So, if they sit too high, it can be difficult to tune your guitar.
If the nut is exceptionally high, meaning one or more of the slots haven’t been carved out to perfection, it is even possible for your string to jump out of the slot. Two-thirds of the string must fit inside the nut and one-third above it for a perfect fit.
When tuning your guitar, listen to the sound of each string, as only one or more of the strings may be sitting too high. If the string makes a pinging sound when tuning it, look at your nut as it could be too high.
4. Your Strings Are High Action
When your guitar nut is too high, your strings will be high action. This means there will be too much space between the strings and the frets. As discussed above, this can make playing the guitar difficult and hurt your fingers.
For the untrained eye, it might not be easy to see if your strings are sitting too high, but once you know what they look like when perfectly fitted, you should be able to see it.
High action is mainly the result of slots in the nut being carved too shallow. It is, however, possible that the slots are fine, and there is excess glue under the nut, causing it to sit higher.
If you are unsure whether your action is too high, there are ways to measure it. You will, however, need one of these items:
- Ruler
- Feeler gauge
- String action gauge
When using a ruler, ensure that it has a straight end and that the measurements start right from the beginning, or you will not get an accurate measurement.
A string action gauge like this BIGTEDDY String Action Ruler (available on Amazon.com) is the perfect tool to measure your string action. It is small enough to keep in your guitar repair kit and is multi-use as it has measurements on one side and a conversion chart of string action on the other. This string action ruler gauge will help you accurately measure your string height so that you never have to struggle with high action strings again.
You can measure your string height at any fret, but it is usually recommended to measure it at the 12th fret for the best accuracy. Many guitarists prefer to play with slightly high or slightly low action, but good standard string action heights are as follows:
- Acoustic guitar. On low E, your action should be 7/64” (2.8mm), and on high E, it should be 5/64” (2mm).
- Electric guitar. On low E, your action should be 6/64” (2.4mm), and on high E, it should be 4/64” (1.6mm).
The above heights are for measuring your strings at the 12th fret, as this is the position most often used.
Many slide players intentionally use high action on their guitars, making playing with a slide much easier. You shouldn’t touch the frets when playing with a slide, so it is understandable that they might prefer playing on a high-action guitar.
For any other guitarist, medium action is the best.
Low-action strings are easier to play, so you will be able to play faster. This might seem like a good idea, and if you can strum gently, it will be fine. But, if you are an aggressive strummer, it will be a problem as you will experience a lot of guitar buzz with low-action strings.
Guitar Nuts Can Be Too Low, Too Tight, and Too Wide
For this article, we will be focusing on guitar nuts that are too high, but it is also important that you know that your guitar nut can be too low, too tight, and too wide as well. If your guitar nut is not right, you will experience many different problems, so it is best to ensure that your guitar nut is right and your action is perfect.
Your Guitar Nut Is Too Low
A guitar nut that is too low can cause your strings to buzz, which sounds horrible and can be embarrassing if you are playing in front of a crowd.
When buying a new guitar or replacing your guitar nut, you should ensure that the slots in the nut aren’t cut too low. If the slot is too low, there isn’t much you can do about it, unfortunately. Raising a guitar nut is not easy and filling up the slot isn’t a good idea. If the slots are too low, your best option is to replace the nut.
It is also possible for the slots in the guitar nut to wear out over time. If this is the situation, it is also best to replace the nut. Guitar nuts come in a variety of different materials, such as: