Tennis string selection makes the difference between a racquet that feels dead in your hand and one that delivers control, power, and spin exactly when you need it. Most players overlook this choice, sticking with whatever came pre-strung, but the right string and tension can transform your game. This guide walks you through the key variables so you can make an informed decision based on your playing style and budget.
String Material: The Foundation of Performance
Tennis strings come in three main materials, each with distinct trade-offs.
Natural gut remains the gold standard for comfort and playability. It offers excellent tension retention, responds beautifully to spin, and reduces arm strain—critical for players dealing with tennis elbow. A single set typically costs $25–$50, making it the most expensive option. Professional players often choose gut for matches, then switch to synthetics for practice.
Polyester strings dominate modern tennis. They're durable, generate spin, and hold tension longer than natural gut. Expect to pay $8–$20 per set. The trade-off: they're stiffer and transmit more vibration to your arm. Polyester suits aggressive baselliners and players who hit hard with topspin.
Nylon (multifilament) sits in the middle ground. More comfortable than polyester but less durable, nylon strings cost $5–$15 per set and work well for recreational players or those prioritizing comfort over spin production.
Many players use a hybrid setup—natural gut or nylon in the mains (vertical strings) for comfort and power, polyester in the crosses (horizontal strings) for durability and spin. A hybrid typically runs $15–$35 per set.
Tension: Finding Your Sweet Spot
String tension dramatically affects how your racquet plays. Measured in pounds (lbs), tension ranges typically span 45–70 lbs, though most players string between 50–62 lbs.
Lower tension (48–54 lbs) generates more power and comfort. The strings deflect more on impact, storing and releasing energy. This suits beginners, recreational players, and anyone prioritizing feel over precision.
Higher tension (58–65 lbs) delivers control and consistency. Less string movement means more predictable shots and sharper directional accuracy. Advanced players and those playing competitive matches often prefer this range.
The manufacturer's recommended tension range appears on your racquet frame—stay within it to avoid structural damage. If your racquet recommends 50–60 lbs, don't string at 45 or 70.
Consider These Factors When Setting Tension
- Playing style: Aggressive hitters benefit from higher tension; defensive baseliners from lower tension
- Arm health: Lower tension reduces joint stress if you're prone to elbow or shoulder pain
- Court surface: Faster courts (hard, clay) may feel better at slightly higher tension; slower courts at lower
- Humidity and season: Strings loosen in warm, humid conditions—restring more frequently in summer
- Racquet stiffness: Stiffer racquets pair better with lower tension to maintain comfort
Gauge: Thickness Matters for Durability
String gauge (thickness) ranges from 15 (thickest) to 18L (thinnest). Thicker strings last longer but offer less feel; thinner strings break faster but provide better touch.
- 16 gauge: The sweet spot for most players—balances durability and playability
- 17 gauge: Slightly more comfort and spin, shorter lifespan
- 15 gauge: Maximum durability, stiffer feel, better for power hitters who break strings frequently
When to Restring
Even if strings don't break, they lose tension and responsiveness over time. As a general rule, restring your racquet once per year for recreational players, or as many times per year as the number of times per week you play competitively. A player hitting twice weekly should restring approximately every 2–3 months.
Restringing typically costs $25–$75 labor depending on your location and the pro shop's rates, plus string material costs.
Shopping for Strings
Specialty tennis retailers and online stores stock hundreds of options. Mercoly helps you compare trusted Golf & Racquet Sports providers in one place, so you can find the right string and tension recommendation for your specific racquet model and playing profile.
Start by identifying your racquet's recommended tension range and your budget, then test one new string before committing to buying in bulk.
Frequently Asked Questions
Q: How long does a tennis string last before it loses tension? Most strings lose noticeable tension within 2–4 weeks of regular play, even without breaking, which is why serious players restring frequently.
Q: Can I use any tension on my racquet, or does the frame limit me? Your racquet frame has a manufacturer-recommended range printed on it—stay within that range to avoid cracking or warping the frame.
Q: Do expensive strings always play better than budget options? Not necessarily; a $12 polyester string plays similarly to a $18 version for most players, but natural gut and premium synthetics do offer measurable comfort and spin advantages if your budget allows.
Find a local stringer and test different string setups to discover what feels best in your hand.