- Overall length: 34–36 inches (86–91 cm)
- Scale length: 25.5-27 inches (65–69 cm)
- Head diameter: 10–11 inches (25–28 cm)
- Body depth: 2–2.5 inches (5–6 cm)
5-string banjo:
- Overall length: 36–39 inches (91–99 cm)
- Scale length: 26–28.5 inches (66–72 cm)
- Head diameter: 10–12 inches (25–30 cm)
- Body depth: 2.5–3 inches (6–8 cm)