Roundwound acoustic guitar strings are by far the most popular string type amongst acoustic players. In fact, roundwounds are also very easy and inexpensive to design which is why they're very affordable. Whether you play a 6-string acoustic guitar or a 12-string model, you'll find more than enough roundwound acoustic guitar string sets in these pages to browse. Respected companies like Martin, D'Addario, Cleartone and Thomastik can all be found here offering their own roundwound string sets in various gauges and string material types. You'll even come across nylon string packs for players who prefer a warm tone and soft feel.
So, first things first, what is your preferred string gauge (thickness)? Generally, lighter strings are more comfortable on the fingers and easier to bend, which is why they are often recommended for beginners. If this sounds like what you're after, then check out a top seller like the Fender 880L Coasted 80/20 Bronze Acoustic Guitar Strings. Now, for those of you who built up strong calluses and want more volume and sustain in your tone, you might want to think about moving up to a heavier gauge. In which case, turn your attention to the D'Addario NB1356 Nickel Bronze Medium Acoustic Strings. Of course, there are plenty of other gauges here and trying out various types is the best way to figure out what suits your tastes and skill level best.
Along with string gauge, material type is another important factor. Popular construction materials include bronze (known for their ringing, bright tone), aluminum bronze (favored for their crisp highs and terrific clarity) and silk and steel (which offer a softer touch that's perfect for fingerstyle players). There are plenty of each here, including the Ernie Ball Aluminum Bronze Medium Light Strings, the Thomastik AC112 Plectrum Bronze Medium Strings and the Martin M200 12-String Silk and Steel Custom Strings.
And don't think for a second that the packs mentioned above are your only choices - there are many other gauges and materials to consider, so dive in whenever you're ready! The bright, sparkling sound of roundwound guitar strings is why they are preferred by musicians spanning from blues to country to rock. And make no mistake, the catalog that sits before you is jam-packed with virtually every roundwound acoustic guitar string you can name.