How Are Guitar Nut Slots Measured?

If you’re a guitar player or luthier, you might be familiar with the term nut slot. The nut is the small piece of material that sits at the end of the guitar’s neck, where it meets the headstock. The nut serves to hold the strings in place and keep them properly spaced as they travel from the headstock to the bridge.

But how are guitar nut slots measured? In this article, we’ll discuss the steps involved in measuring nut slots accurately.

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1. Determine Nut Material
The first step in measuring a guitar nut slot is determining what material it’s made of.

Most nuts are made from plastic, bone or metal. Each of these materials requires a slightly different method for measuring.

2. Measure Nut Thickness
Once you’ve determined what material your nut is made of, measure its thickness using a micrometer or caliper. This will give you an accurate measurement of how thick your nut is.

3. Measure String Spacing
Next, measure the spacing between each string on your guitar using a ruler or caliper. This will give you an idea of how wide each slot needs to be.

4. Calculate Slot Width
To calculate the width of each slot, subtract half of the diameter of each string from the total spacing measurement you took in step 3.

For example, if your total spacing measurement was 1 inch and your thinnest string had a diameter of .010 inches (half of .020 inches), then you would subtract .005 inches from each side for a total slot width measurement of .990 inches.

5. Check Slot Depth
After calculating slot width, check its depth using a ruler or depth gauge. The depth should be just deep enough for each string to sit comfortably in its respective slot without buzzing against other frets.

6. Adjust as Needed
If necessary, make any adjustments to adjust height and ensure strings are not touching other frets when played.

Once you’ve measured and adjusted your nut slots, you’ll have a guitar that plays more accurately and with better intonation. By following these simple steps, you can measure nut slots yourself and have a guitar that’s perfectly set up for your playing style.