Neck relief is the amount of curve in the neck of an electric guitar. A guitar with the correct amount of neck relief will have a comfortable feel and will play in tune. If the neck has too much relief, the strings will buzz against the fretboard. If the neck has too little relief, the strings will be too far from the fretboard and will be difficult to play.
Here are the steps on how to measure the neck relief on an electric guitar:
- Prepare the guitar: Make sure that the guitar is unplugged and that the strings are in tune.
- Locate the truss rod: The truss rod is a rod that runs through the neck of the guitar. It is used to adjust the neck relief. The truss rod adjustment is usually located on the headstock of the guitar.
- Loosen the truss rod: Use a screwdriver or Allen wrench to loosen the truss rod. Do not loosen the truss rod too much, as this can damage the neck.
- Place a capo on the first fret: A capo is a device that clamps down on the strings at a specific fret. This will allow you to measure the neck relief at a consistent point.
- Press down on the low E string at the 12th fret: Use your finger to press down on the low E string at the 12th fret.
- Measure the distance between the string and the fretboard: Use a feeler gauge to measure the distance between the string and the fretboard at the 8th fret. The correct amount of neck relief will vary depending on the guitar, but a good starting point is 0.010″ to 0.015″.
- Adjust the truss rod as needed: If the neck relief is too much or too little, adjust the truss rod accordingly. Tighten the truss rod to increase the neck relief and loosen the truss rod to decrease the neck relief.
- Repeat steps 4-7 until the neck relief is correct: Once the neck relief is correct, tighten the truss rod nut.
Here are some safety precautions to take when measuring neck relief on an electric guitar:
- Make sure that the guitar is unplugged. This will prevent you from getting shocked.
- Be careful not to over-tighten the truss rod. Over-tightening the truss rod can damage the neck.
- Use the correct tools for the job. A screwdriver or Allen wrench and a feeler gauge will be needed to measure the neck relief.
- Be patient and take your time. It is important to get a accurate measurement of the neck relief.

