What Is a Fret?
A fret is one of the thin metal strips embedded across the guitar's neck. Pressing a string down just behind a fret shortens the string's vibrating length, and each fret raises the pitch by exactly one half step. "Play the 5th fret" means press the string in the space just behind the 5th metal strip.
Frets vs. fret spaces
Guitarists use "fret" loosely to mean both the metal strip and the space behind it where your finger actually goes. When a chord chart or teacher says "3rd fret," they mean the space between the 2nd and 3rd metal strips — press there, and the string vibrates from the 3rd strip to the bridge.
Why frets matter for finding notes
Because every fret is one half step, the fretboard is a ruler: move up one fret and any note becomes its sharp, move down one fret and it becomes its flat. Start from an open string and count frets, and you can name any note. That's the entire basis of fretboard memorization — and it's why the dots on the neck at frets 3, 5, 7, 9, and 12 work as landmarks.
At the 12th fret, you've stacked twelve half steps — a full octave — so the note names start over.
Related terms
- Open string — the note a string plays with no fret pressed
- Half steps and whole steps — the distances frets measure
- Standard tuning — the starting note of each string
Frequently asked questions
What does a fret do?
A fret stops the string at an exact point when you press behind it, shortening the length that's free to vibrate. Shorter vibrating length means a higher pitch — each fret raises the pitch by one half step, which is why frets let you play every note in between the open string and the octave above it in precise, repeatable steps.
Is every fret a half step apart?
Yes, on every fret on a standard guitar. That's what makes the fretboard predictable: move one fret in either direction and the note moves by exactly one half step, with no exceptions for open strings or higher positions. Two frets is a whole step, twelve frets is a full octave.
How many frets does a guitar have?
Most electric guitars have 21–24 frets; most acoustics have 18–20. The count doesn't change what a fret is — it just changes how many half-step increments you get above the open string before running out of neck.
What's the difference between a fret and a fret number, like "the 5th fret"?
A fret is the physical metal strip. A fret number like "5th fret" refers to the space just behind the 5th strip, counting up from the nut at the top of the neck. "Play the 5th fret" and "play behind the 5th fret" mean the same thing — guitarists just drop the word "behind."