FBbFBbCF
Fig. 1 · Fsus4 · moderate

guitar chord

Fsus4

F1B♭4C5

The third replaced by the fourth, which leans on the third it is standing in for.

on ukuleleon pianothe scale

Every fingering that fits a hand

Fig. 2

113311

moderate · barre

Fig. 3

133311

hard · barre

Fig. 4

11331x

moderate · barre

Fig. 5

xx3311

hard

Fig. 6

1333xx

hard

What is true of it

Fsus4 is F, B♭ and C — 1, 4 and 5 counted from F.

These are also the notes of B♭sus2/F and A♯sus2/F. Which name is right depends on what is underneath and what came before — the notes alone do not decide.

The easiest of the 5 fingerings below is 113311: 3 fingers, one of them barring the 1st fret, held at the 1st fret.

None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.

3 of the 5 need a barre.

Where its notes are on the neck

EADGBE123456789101112145451145451514145
Fig. 7 — first 12 frets

The brass dots are F, the root. Everything else is a chord tone with its degree printed in it.

With a different note underneath

first inversion

Fsus4/B♭

x13311

second inversion

Fsus4/C

x3331x

An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.

F in other shapes

Fsus2suspended secondF7sus4dominant seventh suspended fourthFmajorFmminorFdimdiminished

Csus4C♯sus4D♭sus4Dsus4D♯sus4E♭sus4Esus4F♯sus4all 374