Gauge refers to the thickness of thetennis strings. Thicker gauges offer increased durability. Most strings on the market are between 15 gauge (the thickest) and 18 gauge (the thinnest). The thinner the string, the better it will play-you’ll get more “feel” and control because the string bites into the ball. Thinner gauges offer increased elasticity and spin potential. The downside: Thin strings break more quickly. Your best bet is to start with a 17-gauge string; if it snaps in 10 hours or less, go to a 16-gauge.
The most commonstring in tennis is 16 gauge. This is what you will find in most tennis racquets. It is the preferredstring for most recreational and competitive players. 16L gauge is a slightly thinner version of the popular 16 gaugestring that dominates thestring market today.
If you’re new to tennis, start with basic nylon tennis string, with a thicker gauge, like 15. As you improve, try out different brands of string, and thinner gauges, until you find the right type of string for you. Determining string tension is a little trickier. If you want control, tennis string it as tight as the manufacturer recommends. If you’re looking for power, string it at the lowest end of the recommended tension. 17 and 18 gauge stings, meanwhile, along with their thinner counterparts 17L and 18L, are used by advanced and professional players who want to create more spin.
Players who are primarily concerned with playability will look for a high resiliency rating whereas players looking for longer string life will choose a high durability rating.