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Which tennis string gauge fits my play style?

Updated: Aug 25, 2022

Tennis can be enjoyed widely from beginners to tour pros. For that reason, the feeling of hitting, the style of play, the shot you want to hit, etc. vary depending on the player. Therefore, many aspects characterize the tennis strings. Here are the facts about the tennis string gauge.

Is my current tennis string thick or thin?

"I am using a thick gauge because of the durability." Yes, the thicker gauge is more durable. Everybody can agree on this physical law. Then, what is the thick gauge or thin gauge? Currently, 16L GA(gauge) is considered a medium size gauge. So, thicker than 16L GA, such as 16 GA or 15 GA are thick and thinner than 16L GA, such as 17 GA or 18 GA are thin.

Gauge Measurement

"16L" is a number but is not a common absolute value. The actual gauge measurement varies by the tennis string series and by the manufacturers. For instance, GOSEN G-Tour 1 16L GA is 1.25mm (in millimetres, a string's diameter) and GOSEN G-TOUR 3 16L GA is 1.28mm. So, "16L" is just a reference number. When you choose the tennis strings by the gauge, please refer to the actual gauge measurement in millimetres.

What is "diameter 1.30mm-1.32mm"?

The gauge measurement is the diameter of the tennis string. But in GOSEN strings, you might find strange actual diameters, such as SIDEWINDER 16 GA 1.30mm-1.32mm or G-SPIN 3 17 GA 1.19mm-1.27mm. Tennis strings are round in shape. In 2011, GOSEN developed the world's first non-round-shaped tennis string SIDEWINDER series for more bite and spin. Because of this unique shape, these strings have a range in diameter. GOSEN Polylon Series SIDEWINDER increased the spin by 30% and the resilience by 10%.

Shot Charactrics by the Tennis String Guage

- Thin Guage Tennis Strings

More resilience, speed, and spin, which are good for service and volley.

- Thick Guage Tennis Strings

More durable, stable, and hold-feeling on the shots, which are good for groundstroke


GOSEN is a manufacturer of synthetic fibres in Japan. We have been developing new strings and materials for racket sports since 1954 when we developed the world's first synthetic racket string. We continue researching, developing, and studying for the world's athletes. We will keep providing the results with our new products and information like this. Please subscribe for more information and updates.

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