Most acoustic guitars have between 18 and 21 frets
The standard acoustic guitar comes with 20 frets on most models. Some have 18, and a few have 21 or 22. The number depends on the guitar's scale length—the distance from the nut (the white piece at the headstock end) to the bridge (where the strings attach at the body). A longer scale means more room to fit frets, so larger guitars tend to have more.
The frets themselves are the thin metal strips running across the neck. When you press a string down onto a fret, you shorten the vibrating length of that string, which raises the pitch. Each fret represents one semitone in pitch, so more frets mean a higher range of notes you can play on a single string.
In practice, the frets beyond the 12th are harder to reach because your hand has to stretch further up the neck toward the body. Most beginner and intermediate players rarely use frets beyond the 15th, but they are there if you need them for higher melodies or solos.
Key Takeaways
- Standard acoustic guitars have 20 frets, though 18 to 21 is common depending on the model and brand.
- The number of frets is determined by the guitar's scale length—longer scales fit more frets between the nut and bridge.
- Each fret raises the pitch by one semitone, so fret 12 is one octave higher than the open string.
- Frets beyond the 15th are usable but require stretching your hand far up the neck, which most players do only for specific high notes.
Why acoustic guitars don't all have the same number of frets
The main reason fret count varies is scale length. A dreadnought or jumbo acoustic—the larger body shapes—typically has a scale length of 25.4 inches or longer, which gives room for 20 or 21 frets. A smaller parlor or travel guitar might have a scale of 24 inches or less, leaving space for only 18 or 19 frets.
Some manufacturers also design guitars with fewer frets intentionally. A 12-fret acoustic (where the neck joins the body at the 12th fret instead of the 14th) has a different sound and feel—the body resonates differently because more of it vibrates freely. These are less common but popular among fingerstyle players and folk musicians.
The brand and price point matter too. Budget acoustics often have 18 or 19 frets, while mid-range and high-end models usually have 20. A few specialty guitars go to 21 or 22, but that is rare and usually found in electric-acoustic hybrids or niche instruments.
How to count the frets on your guitar
Start at the nut—the white or cream-colored piece at the top of the neck where the strings sit. The first fret is the metal strip closest to the nut. Count each metal strip moving down the neck toward the body. Stop when you reach the last metal strip before the neck meets the body (called the body joint).
If you are unsure where the neck ends, look at the side of the guitar. The frets stop where the wooden neck piece stops and the body begins. On most acoustics, this happens around fret 14 to 15, but the frets continue past that point for another 5 to 7 frets before the actual end of the fingerboard.
You can also check your guitar's manual or the manufacturer's website if you have the model number. Most acoustic guitar spec sheets list the fret count along with scale length and other details.
The difference between 18, 20, and 21 frets in real playing
For most players, the difference between 18 and 20 frets is small. An 18-fret guitar gives you up to the F# or G note at the high end of the standard tuning range. A 20-fret guitar extends that to A or B. Unless you are playing lead solos or very high melodies, you will not notice the missing two frets in everyday playing.
The real difference shows up in genre and style. Classical and fingerstyle players often prefer 18 or 19-fret guitars because the neck joint sits higher, giving the body more room to vibrate and produce a warmer tone. Rock and pop players, especially those who play solos, tend to prefer 20 or 21 frets for the extra range.
A 21-fret acoustic is rare but useful if you want to match the range of an electric guitar or play in very high registers. However, the extra frets make the higher positions even harder to reach, so it is more of a specialty choice than a practical upgrade for most players.
Fret wear and maintenance
Over time, frets wear down from string vibration and finger pressure. You might notice small dips or flat spots on the frets, especially in the lower positions where most players spend their time. This is normal and does not mean you have lost frets—the metal is still there, just worn.
If frets become too worn, a luthier (guitar repair specialist) can crown them, which means filing them back to a rounded shape. In severe cases, frets can be replaced, but this is expensive and usually only done on high-end guitars worth the cost.
You can extend the life of your frets by wiping down the neck after playing, keeping your strings clean, and storing the guitar in a stable humidity environment. Frets last longest when the wood underneath stays stable and the strings do not rust.
Frequently Asked Questions
Do all acoustic guitars have the same number of frets?
No. Most have 20, but 18 to 21 is the normal range. Scale length and body size determine how many fit. Smaller guitars have fewer, and specialty models may have more.
Can I add more frets to my acoustic guitar?
Technically yes, but it is not practical. Adding frets requires removing the old ones, refretted the fingerboard, and re-crowning everything. It costs hundreds of dollars and changes the guitar's sound. It is cheaper to buy a guitar with the fret count you want.
Why do some guitars have frets that go past where the neck meets the body?
The neck joint (where the neck attaches to the body) is usually around fret 14. Frets continue past that point because the fingerboard extends slightly onto the body. This gives you access to higher notes without the neck being longer.
Is 18 frets enough for a beginner?
Yes. Beginners rarely play above the 12th fret, so 18 or 20 makes no practical difference in the first year or two. Focus on finding a guitar that feels comfortable and sounds good to your ear.
Do electric guitars have more frets than acoustics?
Often, yes. Electric guitars commonly have 21 to 24 frets because they have longer, thinner necks and players use the higher positions more for solos. Acoustics prioritize body resonance, so they tend to have fewer frets and thicker necks.