guitar headstock types

What are String Trees for Guitar?

Did you know that string trees play a vital role in how well your guitar strings sustain and intonate? In this article, we discuss, what are string trees for guitar!

What are string trees? String trees, string retainers, and string guides are those small metal widgets (shaped like a hook) that are located on the headstock (between the nut and the tuners) and provide downward tension on the strings for more accurate tuning.

Below, I discuss string trees in greater detail… So let us get started! 

1. What are String Trees? 

As discussed, string trees are small metal widgets that attach to the head-stock of the guitar. They are called strings trees as they play a vital role in stabilizing the tension of the guitar neck and secure holding the string onto the Nut (just as a tree would). 

They are only found on straight head-stocks because this particular design lacks downward force that securely holds the strings in place. This leads on to why they are called string trees…

guitar headstock types

Guitars that are not required to have string trees will have a headstock that tilts backward at an angle from the neck. This creates the proper break angle and downward pressure necessary to stabilize the guitar strings.

2. Why are String Trees Important?

String trees are necessary for guitars with straight headstocks. Such as the traditional Fender design.

Fender guitars are commonly found with having a flat headstock and in-line tuners which makes the distance between the nut and the tuning posts longer.

Because of the longer distance, they are required to have this component to increase the pressure of the strings and overall increase tuning stability and accuracy.   

3. How String Trees Work?

The string tree essentially pins the string down to the nut. This is done in the same way you’d press a string against a fret with your finger.

As the strings pass over the nut and thread towards the tuning pegs there may be some slack on the strings. If there is too much slack on the strings they won’t resonate as well and may sound a bit dull and faint.

String trees securely hold the strings in the groves of the nut and remove slack on the strings by creating a proper break angle to securely hold the strings.

This is because the design of straight head-stocks (such as the fender design) is not angled enough from the nut to provide the tension that is required to do this. So, applying downward pressure on the string in question (usually G and B strings) will better hold the strings in the groves and provide the right amount of tension to reduce slack and overall ensure the strings don’t buzz and rattle within their nut slot.

4. Types of String Trees


lovermusic Lovermusic 40Pieces Guitar String Tree Guide Retainer with Spacer Screw Chrome
  • Comes with spacer and screw, ready Replacement for use.
  • They are suitable Replacement for guitar
  • They can retain the string perfectly.
  • High quality material and durable to use.

Butterfly types: Most are metal, and found on Fender guitar structures. The metal trees do improve your tuning. But if you do bending or use the whammy bar regularly, you’re likely to experience tuning problems. It happens every time the string changes tension against the tree. At that time, the contact between the steel strings and the metal trees creates friction and causes the string to hang slightly.


FarBoat 4Pcs Roller String Trees Retainers String Guides Retainer Accessories for Electric Guitar with Screws(Silver)
  • Product name: string guides retainer. If this one cannot satisfy you, welcome to FarBoat, we provide different types of accessories for guitars, and there is always one for you.
  • These strings retainers will keep your guitar strings fixed and prevent them from breaking.
  • They are the fantastic replacements for broken ones.
  • Made of high quality metal, with the simple design, these strings retainers will make your guitars deffenrent.
  • Package Content: 4 × roller style guitar string retainers, 4 × mounting screws.

String trees with rollers are especially useful to those guitarists who usually bend the strings. It turns with the strings and causes no friction or flattens them. However, many users have pointed out the inconvenience of using this type of string tree: because the rollers are on the same axis, tuning one string will affect another. By using a string tree made from a slippery material such as graphite, or second, install a rolling string tree. Both types of guides accomplish the goal of reducing metal-to-metal friction.


Just like roller string trees, graphite are good to prevent friction and ultimately reduce string slippage. This is because graphite is slippery and will reduce friction and thus improve tuning stability. By using a string tree made from a slippery material such as graphite, or second, install a rolling string tree. Both types of guides accomplish the goal of reducing metal-to-metal friction.

Barrel String Tree

Dilwe 2PCS Guitar String Retainer, Guitar Roller String Tree Retainer with Screw for Electric Guitar Bass(Silver)
  • DURABLE MATERIAL: This guitar string retainer adopts high quality material, which is high strength, wearable and durable to use.
  • FUNCTION: Improves performance for your guitars, it stress on your strings which allows the guitar to stay in tune longer.
  • GOOD REPLACEMENT: Great replacement for your broken, dirty or old string retainer.
  • FITS FOR: Fit for Fender Strat Stratocaster Tele Telecaster Electric Guitar.
  • GUARANTEE: Our product have 180 days warranty, if you have any question about this product, please feel free to contact us, we will try our best to help you solve your problem.

Barrel strings tree work similar to the Buttery fly tree. However, they offer smaller contact reducing the friction between the contact point. However, due the size of the arms you will sacrifice the strength and they may not last as long especially under high tension strings.

Disc String Tree

Disc strings tree are found primarily on bass guitar. They are basically a wedges of metal that is design the withstand the high tension required of the thick bass strings.

5. How the string tree and nut work together

The strings trees work with the Nut as it removes the slack by creating more of an angle to hold the string in place. Where the string tree is positioned on the head-stock changes the angle of where the string threads over the nut. As the angle changes, so do the tension of the strings. The angle has to be precise as not enough angle will mean too much slack on the strings and too much of an angle will mean the string won’t flow over the nut as well as it should and may catch on other components and you may find yourself running into additional tuning problems.

Luckily, some tension is controlled by the position of the string tree (between the nut and the machine head). As the string thread over nut we can move the string tree towards the nut to create more of an angle, or towards the machine, head to straighten the angle out.

Overall, by controlling the angle at which the strings thread over the nut towards the tuners we control the tension of the strings.


Overall, string trees are a vital component for a guitar with a straight headstock design. It is a very simple component but can significantly help with tuning stability.

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