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C Suspended 4th Guitar Chord (Csus4)

C suspended 4th is a three-note chord built from C (the root), F (the perfect fourth), and G (the perfect fifth). It replaces the third with a perfect fourth, so it is neither major nor minor — just suspended, hanging in the air until it resolves, usually back to C major. Below are 4 ways to play it in standard tuning, easiest shape first.

Csus4 chord shapes — standard tuning

open string × muted / not played 1–4 suggested finger 3fr shape starts at fret 3 R · 3 · 5 · ♭7 chord tone each string sounds
Csus4 guitar chord diagram, Open position, frets x-3-3-0-1-1×3R4451R24
Open position
x-3-3-0-1-1
Csus4 guitar chord diagram, Barre · 3fr, frets x-3-3-5-6-33fr×1R42R345
Barre · 3fr
x-3-3-5-6-3
Csus4 guitar chord diagram, 5fr, frets 8-8-5-5-x-x5fr3R44152R××
5fr
8-8-5-5-x-x
Csus4 guitar chord diagram, Barre · 8fr, frets 8-8-10-10-8-88fr1R42R345R
Barre · 8fr
8-8-10-10-8-8

How to play it

Place your index finger on the B (2nd) string at fret 1, your middle finger on the high E (1st) string at fret 1, your ring finger on the A (5th) string at fret 3, and your pinky finger on the D (4th) string at fret 3. Let the G (3rd) string ring open. Keep the low E (6th) string out of the strum — start your downstroke from the A (5th) string.

Once that shape is comfortable, try the other 3 voicings above — same notes, different neck positions and textures.

Notes in this chord

SymbolIntervalNote
RrootC
4perfect fourthF
5perfect fifthG

Csus4 FAQ

What notes are in Csus4?
Csus4 contains C, F, and G — the root (C), the perfect fourth, and the perfect fifth.

Is Csus4 a barre chord?
Not necessarily. The easiest Csus4 shape (x-3-3-0-1-1) needs no barre — it uses 4 fingers plus open strings. Barre versions exist too, starting at fret 3, and are handy when you want to move the same grip to other keys.

What is the easiest way to play Csus4 on guitar?
Start with the open position shape x-3-3-0-1-1. Place your index finger on the B (2nd) string at fret 1, your middle finger on the high E (1st) string at fret 1, your ring finger on the A (5th) string at fret 3, and your pinky finger on the D (4th) string at fret 3. Let the G (3rd) string ring open. Keep the low E (6th) string out of the strum — start your downstroke from the A (5th) string.