Banjo Csus4 chord (Sawmill)C suspended 4th on the 5-string banjo: 5 5 5 5, and 6 more shapes

Frets, string 4 to string 1: 5 5 5 5 (from the 5th fret)

1. String 4 (D): 5th fret, index finger (barre), G
2. String 3 (G): 5th fret, index finger (barre), C
3. String 2 (C): 5th fret, index finger (barre), F
4. String 1 (D): 5th fret, index finger (barre), G
5. String 5, the short g: open, G, in the chord

Sounds: G C F G  ·  Csus4 is C, F, G (1 · 4 · 5)

The 5th string: the short g is the 5th of Csus4, so let it ring.

With a capo: on the 5th fret it’s 0 0 0 0 (frets counted from the capo), an open Gsus4 shape. Spike the 5th string at the 10th fret to keep it in tune with the capo.

Sawmill tuning: gDGCD, the short 5th string first, then strings 4 to 1.