Guitar Care, Setup & Maintenance

How to Choose Guitar Strings: Gauges, Materials and Coatings

Strings change how your guitar feels and sounds more than almost anything else. Here is how to decode a string packet and choose the right set.

By the Ultimate Guitar Gear Guide Editorial TeamUpdated September 27, 20262 min read
How to Choose Guitar Strings: Gauges, Materials and Coatings

Never mix up string types

GuitarString typeWhy
Steel-string acousticAcoustic strings (bronze or phosphor bronze wound)Designed for acoustic resonance
ElectricElectric strings (nickel or steel wound)Magnetic material needed for pickups
ClassicalNylon strings onlySteel would damage a classical guitar

What gauge means

Gauge is the string thickness in thousandths of an inch. A set is named by its thinnest (and sometimes thickest) string — for example "10–46" or "12–53".

  • Lighter gauges are easier to press and bend, and kinder to fingertips. They have less volume and sustain.
  • Heavier gauges sound fuller and louder, and stay in tune better when you strum hard, but need more finger strength.
GuitarBeginner-friendlyStandardHeavier
AcousticExtra light (10–47) or custom light (11–52)Light (12–53)Medium (13–56)
ElectricSuper light (9–42)Regular light (10–46)11–48 / 11–52, or heavier for low tunings
ClassicalLow/normal tensionNormal tensionHigh/hard tension
Changing gauge?

A big change in gauge can change the neck relief and intonation. Going up or down one step is usually fine; bigger changes may need a small setup adjustment, and heavier strings may need the nut slots widened.

Acoustic string materials

MaterialSound
80/20 bronzeBright and crisp when new, loses sparkle faster
Phosphor bronzeWarm, balanced, lasts longer — the most popular choice
Silk and steelSoft and mellow, low tension — easy on fingers, good for fingerpicking

Electric string materials

MaterialSound
Nickel-plated steelBalanced, the most common
Pure nickelWarmer, vintage tone
Stainless steelVery bright, corrosion-resistant
FlatwoundSmooth, dark, no finger squeak — jazz

Coated strings

Coated strings have a thin polymer layer that keeps dirt and sweat out of the windings. They cost more but last several times longer, which is great if you have sweaty hands or don't play every day. Some players find them slightly less bright.

Nylon string tension

Classical strings are sold in low, normal and high (hard) tension. Low tension is easy on the fingers; high tension projects more and gives a punchier sound. Normal tension is a safe starting point.

How to make strings last longer

  • Wash and dry your hands before playing.
  • Wipe the strings with a dry cloth after each session.
  • Store the guitar in its case in stable humidity.
  • Consider coated strings.

Frequently asked questions

What strings are best for beginners?

On acoustic, extra light or custom light phosphor bronze (10–47 or 11–52). On electric, 9–42 or 10–46 nickel-plated strings. On classical, normal-tension nylon.

Do lighter strings hurt less?

Yes. Lighter gauges need less pressure and bend more easily, which helps while your calluses develop.