Guitar Theory Studio
CAGED system

The CAGED G Shape

The G shape of the CAGED system: the open G chord as a barre chord, where it sits for all 12 major chords, and the scale and pentatonic box around it.

The CAGED G shape: the G major scale on the guitar fretboard with the G-shape chord's root, 3rd and 5th marked13578910121415GGeBGDAEEF#GABCDEF#GBCDEF#GABCDGABCDEF#GADEF#GABCDEABCDEF#GABCEF#GABCDEF#G

Tap any note on the neck.

Swipe the neck sideways to see the higher frets.

Open chord
G   320003
Roots on
the 6th, 3rd and 1st strings
Chord tones, low to high
root, 3rd, 5th, root, 3rd, root
Shown in
G Major
All five shapes
C   A   G   E   D
Open this in the fretboard tool →

The G shape as a chord

Open, it is the G chord every beginner learns (320003). From the 6th string up it plays root, 3rd, 5th, root, 3rd, root. Put a barre where the nut was and the same fingering plays any major chord — here, C major at frets 5–8. The root notes are the dark dots.

G (open)
G (open) chord shapeDGBGBG
G shape
C (barre)
C (barre) chord shape5frCEGCEC
G shape at frets 5–8

How to find the G shape for any major chord

Find the root you want on the 6th string. The G shape reaches 3 frets back from it toward the nut, and your first finger bars the strings that ring open in the G chord. Here it is for all twelve major chords, from the open G up the neck; tap one to see it on the fretboard.

The scale around the G shape

Hold C in the G shape at frets 5–8 and the notes around your fingers are the C major scale in this position, with the chord’s root, 3rd and 5th marked. That is the G-shape scale pattern, and it moves with the chord.

C major scale around the G-shape barre chord, frets 5–81357891012GeBGDAEEFGABCDEBCDEFGABGABCDEFGDEFGABCDABCDEFGAEFGABCDE

The pentatonic box inside it — frets 5–8

C major pentatonic, position 5, frets 5–8456789ACDEGACDEGAC

The G shape and its neighbours

In G major the five shapes climb the neck in CAGED order, and the G shape comes round again twelve frets up. Where two shapes share frets is where you change shape without moving your hand.

  1. G shape at frets 0–3 (shares fret 3 with the E shape)
  2. E shape at frets 3–5 (shares fret 5 with the D shape)
  3. D shape at frets 5–8 (shares frets 7–8 with the C shape)
  4. C shape at frets 7–10 (shares fret 10 with the A shape)
  5. A shape at frets 10–12 (shares fret 12 with the G shape)
  6. G shape at frets 12–15

In every key the G shape takes over from the A shape below it and hands on to the E shape above it; only the starting fret changes with the root. All five shapes, connected →

How to practice the G shape

  1. Play the open G chord, then the same shape as C at frets 5–8, until the barre version rings as cleanly as the open one.
  2. Move it one fret at a time and say each chord’s name as you land on it; the list above has every fret.
  3. Hold the barre chord, play the pentatonic box around it, and finish each run on a chord tone. That is the step from chords to lead lines.

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