A steel-string acoustic's bracing, neck and truss rod are designed for steel strings. Nylon strings don't drive the top the same way, so the guitar won't project properly.
Practical problems:
- Nut slots are cut for thinner steel strings, so thicker nylon strings may not fit.
- Bridge pins are designed for ball-end steel strings.
- Neck relief may change because the truss rod is set for steel strings.
Better alternatives:
- Want an easier feel? Try .010–.048 or .009–.046 phosphor bronze.
- Want the nylon sound? A classical or crossover nylon-string guitar.
S.I.T. options: P1048 Extra Light or P946 Ultra Light in Phosphor Bronze for steel-string guitars, and our Classical Strings for nylon-string guitars only.