Nylon or steel strings is one of the first questions when buying a guitar. It shapes the tone, the feel, and even whether the instrument can carry the strings at all.
The short answer: the string follows the build of the guitar, not personal taste. Classical guitars are built for nylon, steel-string and acoustic guitars for steel. Swapping the two can, in the worst case, damage the instrument. This guide shows which string suits which guitar and which kind of music.

Warm, soft tone on the classical guitar
Ideal for: Classical, flamenco, young beginners, gentle fingerpicking
See all Gitarren →Loud, bright tone on the steel-string guitar
Ideal for: Pop, folk, campfire, powerful strumming
See all Gitarren - Saiten →01Nylon strings: the classical guitar
Nylon strings belong on the classical guitar, sometimes called the concert guitar. They sound soft and warm, the attack is forgiving, and the fingertips hurt far less than with steel. That is exactly why nylon is the classic starting point, especially for children: the wide neck and the low string tension forgive a lot.
Musically, nylon is at home in classical music, flamenco, and gentle fingerpicking. The wide string spacing gives each note room, and the tone stays round rather than cutting. Anyone learning classical pieces or introducing a child to the guitar is in good hands with a classical guitar.

02Steel strings: the steel-string and acoustic guitar
Steel strings belong on the steel-string guitar, also called the acoustic or western guitar. They sound louder, brighter, and more assertive. The neck is narrower, the string tension noticeably higher, and the fingertips need some getting used to at first.
Musically, the steel-string guitar is the guitar for pop, folk, singer-songwriters, and the campfire. Powerful strumming, accompanied songs, and a carrying tone in a band setting are its strengths. If you want to strum chords and sing, you reach for steel.

03Why steel strings never belong on a classical guitar
This is the most important rule in this guide: never put steel strings on a classical guitar. A classical guitar is not built for the high pull of steel. The neck, the neck joint, and the top of a classical guitar have neither a truss rod nor reinforced bracing for that tension.
The result is not a matter of taste but of structure: the bridge can come loose, the top can bulge, and in the worst case the neck warps or breaks. Steel strings pull with almost double the force. The reverse is less dramatic but also pointless: nylon strings on a steel-string guitar sound weak and do not fit the bridge mechanics. Remember: string follows build, never the other way round.
04String gauges in brief
Within both string types there are gauges, measured by tension for nylon and in fractions of an inch for steel. For nylon you will see normal tension, hard tension, or high tension: less tension plays more easily, more tension gives more volume. Beginners do well with normal tension.
For steel, the set name gives the gauge, from extra light to medium. Lighter sets are kinder to untrained fingers, heavier sets sound fuller and louder. The material matters too: phosphor bronze sounds warmer, 80/20 bronze brighter. If in doubt, start with a light set and work your way up.
| Feature | Nylon strings | Steel strings |
|---|---|---|
| Guitar type | classical guitar | steel-string and acoustic guitar |
| Tone | warm, round, soft | loud, bright, assertive |
| Neck | wide | narrower |
| Feel | soft attack, easy on fingers | higher tension, takes getting used to |
| Ideal for | classical, flamenco, children, starting out | pop, folk, strumming, accompaniment |
The rule of thumb is simple: nylon strings on the classical guitar, steel strings on the steel-string guitar. Which of the two suits you is decided by your music, not by the price. With strings, the build is the law, and swapping them can damage the instrument.
Frequently asked questions
Can I put steel strings on my classical guitar?
Which guitar is better for beginners?
Why do steel strings hurt the fingers more?
What does phosphor bronze mean on steel strings?
How do I tell whether my guitar is built for nylon or steel?
Find the right guitar and the right strings
Whether a warm classical guitar or a powerful steel-string guitar: the range holds both builds and the strings that suit them.
Explore guitarsView stringsPassende Produkte
Alhambra 4P classical guitar 4/4, solid cedar with bag
LAG Western Guitar Sauvage Auditorium with Solid Brankowood and Bag