2. Raise the string height. The string height is the distance between the strings and the frets. If the strings are too low, they will rattle against the frets. To raise the string height, use a screwdriver to turn the adjustment screws on the bridge.
3. Check the nut. The nut is a small piece of plastic or bone that holds the strings in place at the headstock. If the nut is too low, the strings will rattle against it. To check the nut, use a feeler gauge to measure the distance between the strings and the nut. The gap should be about 0.010 inches.
4. Check the bridge. The bridge is a metal piece that holds the strings in place at the body of the guitar. If the bridge is too low, the strings will rattle against it. To check the bridge, use a feeler gauge to measure the distance between the strings and the bridge. The gap should be about 0.015 inches.
5. Use string dampeners. String dampeners are small rubber or felt pieces that can be placed on the strings to reduce rattling. String dampeners can be purchased at most music stores.
6. Try different strings. Some strings are more prone to rattling than others. If you are experiencing string rattle, try switching to a different brand or type of strings.