Guitar Setup Guide: A Measured Checklist
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Do a guitar setup in a fixed order, because each adjustment affects the ones after it. If you change the truss rod after setting intonation, you will likely need to set intonation again. Work through the steps below in order, measure before you change anything, and write down what you find. Every guitar is different, so this checklist gives you a process rather than target numbers.
| Step | What you check | Main tool |
|---|---|---|
| 1 | Overall condition and tuning | Tuner, your eyes |
| 2 | Neck relief | The maker’s recommended method |
| 3 | Action | Steel ruler |
| 4 | Nut slot height | Visual and feel check |
| 5 | Intonation | Tuner |
| 6 | Pickup height (electric) | Ruler |
Step 1: Inspect and Tune
Look for loose hardware, worn frets, cracks, a lifting bridge, and old strings. Fit fresh strings in the gauge you plan to use and tune to your normal pitch. Every later check assumes the guitar is at pitch and in playing position. Note anything that looks structural. That goes to a technician, not into the setup.
Step 2: Check Neck Relief Using the Maker’s Procedure
Relief is the slight forward bow in the neck. Manufacturers publish their own method for measuring it and their own recommended range, and these vary by brand and model. Use the procedure for your guitar.
For truss rod adjustment, follow the maker’s instructions for which way to turn it and how far. Make small changes and let the neck settle before you measure again. If the rod will not turn, feels stuck, or has no adjustment left, stop and take the guitar to a technician.
Step 3: Measure Action
Action is the height of the strings above the frets. With the guitar tuned, measure from the top of the fret to the underside of the string at the fret you choose. Record each string, then raise or lower the saddles to a height that suits how you play. Do not use the truss rod to change action. Relief and saddle height do different jobs. Our guide to guitar action height covers how to measure and read the results.
Step 4: Check the Nut
A slot cut too high makes first-position chords stiff and can pull notes sharp. A slot cut too low can make open strings buzz. To check, hold each string down at the third fret and look at the gap over the first fret. Compare the strings with each other.
Checking the nut is a reasonable job to do at home. Filing the slots is not. If you take off too much, the nut has to be replaced, so leave filing to a technician.
Step 5: Set Intonation
Intonation is how well the guitar stays in tune as you play higher up the neck. Once the action is set, compare each open string or 12th-fret harmonic with the same string fretted at the 12th fret. Then move the saddle as needed and retune after every change. See guitar intonation for the full check.
Step 6: Adjust Pickup Height
On electric guitars, set pickup height last, since changing the action changes the distance between the strings and the pickups. Measure from the pickup to the underside of the string while holding the string down at the last fret. Pickup makers often publish suggested starting points. If the pickup is too close, its magnet can pull on the string and affect sustain and tone. If it is too far away, the sound gets weaker. Listen for an even volume across the strings and between pickups.
When to Call a Technician
Take these jobs to a qualified repair person:
- Filing nut slots or replacing the nut
- Fret leveling, crowning, or replacement
- Cracks, loose braces, a lifting bridge, or neck angle problems
- A truss rod that will not move or has no adjustment left
Worked Example
A player hears buzzing on the low strings after the season changes. They tune up, check relief with the maker’s method, and find it outside the published range. They make a small truss rod adjustment and give the neck time to settle. Then they measure relief again, followed by action and intonation. If one note still buzzes, the buzz diagnostic tool can help narrow down the cause before they book a repair.
For a manufacturer example, see Fender factory setup specifications. Apply the instructions for your exact instrument rather than transferring every specification to another guitar.
Before you touch the truss rod, map where the buzz happens. The guide to separating open-string and fretted string buzz explains that buzz on open strings only can point toward the nut, though it is not proof. Buzz across the lower frets may involve relief, action, or uneven frets. That helps you choose which step of this checklist to revisit first.
