Parts of a Guitar: A Beginner's Guide to Every Part and What It Does

When you start learning guitar, you'll hear words like "nut," "fret," "saddle" and "action" constantly. Lessons and tabs assume you know them, and guitar shop staff will use them when talking about repairs and setups. Learning the parts of a guitar takes ten minutes and makes everything else easier to follow.

This guide walks through every part of acoustic, electric and classical guitars, from the headstock to the strap button, and explains what each part does and why it matters to your playing.

The three main sections

Every guitar has three main sections:

• The headstock, at the top, holds the tuning pegs.
• The neck, the long middle section, is where your fretting hand presses the strings.
• The body, the large bottom section, is where you strum or pick and where the sound is amplified or picked up.

The headstock

Tuning pegs (tuners or machine heads)

The tuning pegs tighten or loosen each string to change its pitch. Turning a peg one way raises the pitch; turning it the other way lowers it. Our guide on how to tune a guitar explains how to use them.

Tuning posts

The small metal cylinders on the front of the headstock that the strings wrap around.

String trees

On some electric guitars, small metal guides on the headstock hold certain strings down so they press firmly into the nut.

Truss rod access

Many guitars have a small cover on the headstock, or an opening inside the soundhole, giving access to the truss rod adjustment nut.

The nut

The nut is the small strip, usually made of bone, plastic or graphite, between the headstock and the fretboard. Its slots hold the strings in place, set their spacing, and set how high they sit at the first fret. A poorly cut nut can make a guitar hard to play near the headstock or cause strings to stick and go out of tune.

The neck

Fretboard (fingerboard)

The front surface of the neck, where you press the strings. Common woods include rosewood, ebony and maple.

Frets

The thin metal strips across the fretboard. Pressing a string just behind a fret shortens the vibrating length and raises the pitch. Each fret raises the pitch by one half step. When a lesson says "third fret," it means the space just behind the third metal strip from the nut.

Fret markers (inlays)

The dots or shapes on the fretboard, usually on frets 3, 5, 7, 9, 12, 15, 17, 19 and 21, help you find your place. The 12th fret usually has a double marker, because it marks the octave, where the notes start repeating. Many guitars also have small side dots on the edge of the neck.

The truss rod

Inside the neck is a metal rod that counteracts the pull of the strings. Adjusting it changes how straight the neck is. Changes in humidity can make the neck bow slightly, which is why guitars sometimes need a seasonal adjustment.

The heel

The point where the neck joins the body. On acoustics, a cutaway in the body near the heel lets you reach higher frets more easily.

The body (acoustic guitars)

Top (soundboard)

The front face of the guitar. On acoustics, the top vibrates to amplify the sound, so its wood and construction have a big effect on tone. Solid tops usually sound richer and improve with age; laminate tops are tougher and less sensitive to humidity.

Soundhole

The round opening that lets sound project from the body. Strumming near the soundhole gives a full, balanced tone.

Pickguard

A protective plate below the soundhole that prevents pick scratches on the top.

Bridge

The piece glued to the top that anchors the strings. On most steel-string acoustics, the strings are held in place by bridge pins.

Saddle

The thin strip sitting in the bridge that the strings pass over. Along with the nut, the saddle determines the string height, called the action. Lowering the saddle is a common way to make a guitar easier to play.

Back and sides

The back and sides form the body's shape and affect volume and tone. Body shapes include the large dreadnought, the balanced auditorium, and smaller parlor and travel guitars.

The body (electric guitars)

Pickups

Electric guitars use magnetic pickups to turn string vibration into an electric signal. Single-coil pickups sound bright and clear; humbuckers sound warmer, fuller and quieter.

Pickup selector switch

Chooses which pickup, or combination of pickups, is active. The neck pickup sounds warm and round; the bridge pickup sounds bright and cutting.

Volume and tone knobs

Volume controls the output level; tone controls how bright or dark the sound is. Turning the tone knob down cuts high frequencies.

Bridge and tailpiece

Electric guitars have either a fixed bridge or a tremolo bridge, which lets you bend the pitch of all the strings with a whammy bar. The bridge also has individual saddles to adjust each string's height and intonation.

Output jack

Where you plug in the cable to connect to an amplifier. Our guide to guitar amp settings explains what to do next.

Classical guitars

Classical guitars use nylon strings, have a wider, flat fretboard and usually no fret markers on the face. Their strings are tied at the bridge rather than held by pins, and their tuning pegs often sit in slots in the headstock. The softer strings are kinder to beginners' fingers.

Other useful parts

• Strap buttons: where you attach a strap, usually on the bottom of the body and near the neck heel.
• Binding: the decorative strip along the edges of the body and neck that also protects the wood.
• Rosette: the decorative ring around an acoustic's soundhole.
• Preamp and pickup (acoustic-electric): lets an acoustic guitar plug into an amp, often with a built-in tuner.

Words you'll hear about how a guitar plays

Term	Meaning
Action	How high the strings sit above the frets. Low action is easier to play.
Intonation	Whether notes stay in tune as you move up the neck.
Neck relief	A slight bow in the neck, adjusted with the truss rod.
Scale length	The distance from the nut to the saddle, which affects string tension and feel.
Setup	A professional adjustment of action, relief, intonation and the nut, typically $50 to $80 in the US.
Fret buzz	A buzzing sound when a string touches a fret it shouldn't; can be technique or setup.

Caring for each part of your guitar

A little routine care keeps every part working well and your guitar playing its best:

• Tuners: if a tuner feels loose or wobbles, tighten the small nut or screw holding it, gently. Don't overtighten.
• Fretboard: wipe it when you change strings. Unfinished rosewood and ebony boards benefit from a little conditioner a couple of times a year.
• Frets: over years, frets wear down where you play most. A guitar tech can level and polish them, or replace them if needed.
• Body: wipe off sweat and fingerprints with a soft, dry cloth after playing.
• Electronics: if you hear crackling when you turn a knob, the control may need cleaning. A tech can do this quickly.
• Humidity: solid-wood acoustic guitars are sensitive to dry air. In dry climates or heated winter homes, a guitar humidifier helps prevent cracks and sharp fret ends.

How the parts work together to make sound

When you pick a string, it vibrates between two fixed points: the nut at one end and the saddle at the other. On an acoustic guitar, the saddle passes those vibrations to the bridge and top, which vibrate the air inside the body, and the sound projects out of the soundhole. On an electric guitar, the pickups sense the string's vibration magnetically and send a signal to the amplifier, which makes it loud.

Pressing a string behind a fret shortens the part that vibrates, so the note goes higher. That's all a fret does, and it's why each fret raises the pitch by the same amount: one half step.

Why knowing the parts matters

Knowing the parts of your guitar helps you follow lessons, read tabs and chord charts, describe problems clearly to a repair shop, and make better choices when you buy strings or a new guitar. If you're shopping, our guide to acoustic vs. electric guitars is a good next read.

Quick quiz: test yourself

1. What part sets the string height at the headstock end? (The nut.)
2. What do you press the strings behind? (The frets.)
3. Which fret usually has a double marker, and why? (The 12th, because it's the octave.)
4. What part sets the string height at the body end of an acoustic? (The saddle.)
5. Which electric pickup sounds brighter? (The bridge pickup.)

Fretwork starts with a quick skill check, then builds a step-by-step path around your level, from your very first chords to playing real songs. The first two stages are free, no card required.

Frequently asked questions