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How to replace and tension a tennis racquet string for optimal play

Replacing and properly tensioning tennis strings brings life back to your racquet and improves control, power, and feel. This guide walks you through string removal, measuring, installing, and tensioning with clear, practical steps so you can get back on court confidently.

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  1. Step 1: Gather tools and materials

    Collect a stringing machine (manual or electronic), new string (gauge 16–18 recommended), stringing awl, cutters, pliers, and a ruler. Having the right tools saves time and protects the frame; expect to spend about 60–90 minutes for a single string job if you are new.

    [Illustration: workbench with tennis racquet, coiled string, stringing machine, pliers, cutters, ruler]

  2. Step 2: Remove old strings carefully

    Cut strings in several places across the head and unwind them to prevent uneven frame stress; remove all knots and debris. Cutting in multiple spots relieves tension gradually and takes 3–5 minutes for a typical racquet.

    [Illustration: tennis racquet on table with partially cut strings and loose segments being removed]

  3. Step 3: Inspect the frame and grommets

    Check the frame for cracks and inspect grommets for wear or sharp edges; replace damaged grommets before stringing. A compromised grommet can shorten string life and risk frame damage, so allocate 10–15 minutes for inspection and minor repairs.

    [Illustration: close-up of racquet frame and grommets under good light with a magnifying tool]

  4. Step 4: Measure string length and plan pattern

    Measure about 40–45 feet (12–14 meters) for a single synthetic gut or multifilament and 30–35 feet (9–11 meters) for natural gut or hybrids; consult your racquet’s mains/crosses pattern and prepare two pieces if needed. Planning avoids shortages mid-job and typically takes 2–3 minutes.

    [Illustration: coiled string with measuring tape showing feet and meters next to racquet diagram]

  5. Step 5: Mount racquet on machine securely

    Place the racquet in the stringing machine with at least four well-distributed frame supports and clamp it gently to avoid deforming the head; ensure the frame is centered and stable. Proper mounting prevents frame warping and should take 5–10 minutes.

    [Illustration: racquet clamped in a stringing machine with visible supports and alignment markers]

  6. Step 6: String the mains using consistent tension

    Start with the central mains, feed the string through evenly and use the machine to pull target tension—typically 50–60 lbs (22–27 kg) for recreational players; lock each clamp after pulling. Consistent tension across mains ensures predictable ball response; allow 1–2 minutes per main.

    [Illustration: hand feeding string through racquet mains while machine tensioner pulls string]

  7. Step 7: Weave and tension the crosses

    Weave cross strings over and under mains using an awl if needed and tension each cross to the same target as mains, adjusting for any loss when locking clamps; tie secure knots when finished. Consistent cross tension maintains string bed uniformity and usually takes 15–25 minutes.

    [Illustration: hands weaving cross strings across mains with pliers and awl nearby]

  8. Step 8: Tie off and check final bed

    Make two secure knots at the frame ends and trim excess string leaving about 1/4 inch (6 mm) tail; press the string bed with your palm and use a tension meter or plunger to verify evenness. A final check identifies high or low areas so you can correct them before playing, taking 5–10 minutes.

    [Illustration: close-up of finished knot, trimmed tail, and hand pressing string bed]

  9. Step 9: Rest and re-tension if needed

    Let the racquet sit for 12–24 hours; re-check tension and retension any loose strings if necessary to stabilize the string bed. Allowing time lets the strings settle into the grommets and results in more stable play characteristics.

    [Illustration: racquet resting on a rack with a clock indicating 12–24 hours]


  • Record the tension, string type, and date on the handle or in a notebook for future reference.
  • For a balance of durability and comfort, try polyester mains with multifilament crosses in a hybrid setup.
  • Tighter tension (2–6 lbs higher) increases control while lower tension increases power; adjust in 2 lb increments.
  • Use gauge 16 (1.30–1.35 mm) for durability and gauge 17–18 for more feel and spin potential.
  • If new to stringing, practice on an inexpensive older racquet first to build confidence.
  • Keep spare 2–3 feet (60–90 cm) of string when cutting to ensure you can finish knots cleanly.

  • Do not exceed the manufacturer’s recommended tension range printed on the racquet — over-tension can crack the frame.
  • Avoid pulling a single string repeatedly without unclamping; sustained pressure can distort the frame and damage grommets.
  • Never use rusty or frayed tools against string or frame; damaged tools can cut strings or chip the frame.
  • If you detect a crack or deep gouge in the frame, stop and consult a professional — continuing to string may cause catastrophic frame failure.

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