Threading and Securing a New String

To put a guitar string on, you thread the ball end (or bridge pin end, depending on your guitar type) through the bridge, then pull the string up the neck and insert the other end into the tuning peg hole. Once both ends are anchored, you wind the tuning peg to tighten the string until it reaches pitch. The whole process takes about two to three minutes per string once you know the steps.

The exact method depends on whether you have an acoustic guitar with bridge pins or an electric guitar with a bridge saddle. Both approaches are straightforward, but the order of operations matters—if you skip steps or tighten too fast, the string can slip or break before it settles.

Key Takeaways

  • Acoustic guitars require you to remove the bridge pin, thread the string through the bridge hole, replace the pin, and then wind the tuning peg.
  • Electric guitars typically have a bridge saddle or bridge block where you insert the string directly, then thread it to the tuning peg.
  • Wind the tuning peg slowly and steadily, keeping tension on the string with your other hand to prevent slack and kinks.
  • A new string will go flat quickly for the first few hours; stretch it gently by hand and retune several times before playing seriously.
  • If a string breaks during installation, stop when ready—continuing to wind a broken string can damage the tuning peg.

Removing the Old String

Before you install a new string, you need to remove the old one. Loosen the tuning peg for that string by turning it counterclockwise until the string is slack enough to unwind by hand. On acoustic guitars, remove the bridge pin (the small wooden or plastic peg that holds the string in place at the bridge) by gently prying it up with a small flathead screwdriver or the edge of a coin. On electric guitars, straightforward pull the string out of the bridge saddle or bridge block.

Once the string is loose, unwind it completely from the tuning peg and remove it from the headstock. Clean the fretboard and tuning pegs while the string is off—you will not get another chance until the next string change. Wipe away any dust or buildup with a soft cloth.

Installing a String on an Acoustic Guitar

Start by inserting the ball end of the new string into the bridge hole. The ball end is the small metal sphere at one end of the string; it sits inside the bridge and is held in place by the bridge pin. Push the string all the way through so the ball end is firmly seated inside the bridge.

Replace the bridge pin by pressing it straight down into the hole. The groove on the pin should face the string, and the pin should sit flush with the bridge surface. Do not hammer it—gentle hand pressure is enough. Now pull the string up toward the headstock, keeping it centered along the fretboard.

Insert the other end of the string into the hole in the tuning peg. Most tuning pegs have a small hole drilled through them; thread the string through and leave about two inches of slack. Begin winding the tuning peg slowly, turning it so the string wraps around the peg post. Keep light tension on the string with your other hand to keep it from kinking or bunching. Wind until the string is snug but not yet at full pitch.

Installing a String on an Electric Guitar

Electric guitars vary in bridge design, but the most common types are the through-body bridge (where you insert the string from the back of the guitar) and the saddle bridge (where you insert from the front). Check your guitar's manual or look at the bridge itself to see which type you have.

For a through-body bridge, insert the ball end of the string into the ferrule (the metal tube) on the back of the guitar body. For a saddle bridge, insert the string into the saddle slot from the front. Once the string is seated, pull it up toward the headstock, keeping it centered.

Thread the other end into the tuning peg hole and leave about two inches of slack. Wind the tuning peg slowly, keeping tension on the string with your other hand. Wind until the string is snug but not yet at full pitch. Electric strings typically require fewer wraps around the peg than acoustic strings because the pegs are usually smaller.

Winding the Tuning Peg Correctly

The way you wind the tuning peg affects how long the string stays in tune and how evenly it settles. Turn the tuning peg slowly and steadily, making sure each wrap of string sits neatly next to the previous one without overlapping or crossing. Keep light tension on the string with your other hand—this prevents slack and helps the string wind smoothly.

Wind until the string reaches approximately the right pitch. You can use a tuner to check, but do not expect the string to hold pitch yet. New strings stretch and go flat quickly, so you will retune several times over the next few hours. If you wind too fast or too tight, the string can break or slip off the peg.

Once all the strings are installed and roughly in tune, use a tuner to bring each one to pitch. Then gently stretch each string by pulling it away from the fretboard (not toward the body) and retune. Repeat this two or three times. The string will continue to drift flat for a few hours, so check the tuning again before you play seriously.

Avoiding Common Mistakes

The most common mistake is winding the tuning peg too fast or too tight. This puts sudden stress on the string and can cause it to break before it even reaches pitch. Wind slowly and steadily, and stop if you feel resistance or hear a creak.

Another mistake is leaving too much slack when threading the string into the tuning peg. If you leave more than two or three inches, the string will wrap unevenly and may slip. If you leave too little, you will not have enough material to wind and the string may not seat properly.

On acoustic guitars, forgetting to replace the bridge pin or replacing it upside down will cause the string to slip or break. The groove on the pin must face the string. On electric guitars, not seating the string fully in the bridge saddle can cause tuning problems and buzzing.

Stretching and Settling a New String

A new string will not hold pitch until it has been stretched and allowed to settle. Once the string is at approximately the right pitch, gently pull it away from the fretboard (perpendicular to the neck, not toward the body) and hold for a few seconds. Release and retune. Repeat this two or three times, pulling a little harder each time.

The string will go flat after stretching, sometimes by a half step or more. Retune and repeat the process. After three or four cycles, the string should hold pitch more reliably. Even so, expect to retune every few minutes for the first hour or two of playing. This is normal and does not mean something is wrong.

If a string continues to go flat after several hours of playing, it may be defective or the bridge may not be seating it properly. Check that the bridge pin (on acoustic) or saddle (on electric) is fully seated and that the string is not slipping. If everything looks correct, the string itself may be faulty and should be replaced.

Frequently Asked Questions

How tight should I wind the tuning peg?

Wind until the string is snug and roughly in tune, but not so tight that you feel resistance or hear creaking. A new string should reach pitch with moderate hand pressure on the tuning peg—if you are straining, you are winding too hard. The string will continue to stretch and go flat for several hours, so do not expect it to stay perfectly in tune right away.

What if the string slips out of the tuning peg while I am winding?

Stop winding when ready and loosen the peg to remove the string. Thread it back in, leaving about two inches of slack, and wind again more slowly. Make sure the string is fully inserted into the peg hole before you start winding. If it keeps slipping, the peg hole may be worn or damaged and may need professional repair.

Can I wind the tuning peg too much?

Yes. If you wind past the correct pitch and keep going, you risk breaking the string or damaging the tuning peg. Stop as soon as the string reaches pitch. If you overshoot, loosen the peg slightly rather than continuing to tighten. A tuner will help you find the exact pitch without guessing.

How many wraps should the string make around the tuning peg?

For acoustic guitars, aim for two to three wraps. For electric guitars, one to two wraps is usually enough because the pegs are smaller. The exact number depends on how much slack you left when threading the string. The wraps should sit neatly next to each other without overlapping or crossing over themselves.

Why does my new string keep going flat?

New strings stretch as they settle, which causes them to go flat. This is normal and expected for the first few hours. Stretch the string gently by hand and retune several times. If a string continues to go flat after a full day of playing, it may be defective, or the bridge may not be seating it properly. Check that the bridge pin or saddle is fully seated and the string is not slipping.