Last updated: October 18, 2026 · Badminton House
Quick answer
Start with a tension within your exact frame’s guidance and compare it with your current setup. The 20–32 lb figures below are reference settings and force conversions, not skill thresholds or a promise of how every racket will play.
Higher tension does not automatically mean more power or control. The string, frame, impact and player all matter. Use a small, documented setup change to compare response instead of treating tension as an upgrade ladder.
A worked example: keep 24 lb, or try a small change?
Suppose you use a Yonex Nanoflare 001 Feel at a recorded reference tension of 24 lb. You like the setup but want to compare a slightly firmer response. This is a suggested decision process, not a recommended tension for every owner:
- Check the frame first. Yonex specifies 20–27 lb for this 5U model. Have the stringer check the frame and grommets; 28 lb is outside this model’s guidance.
- Keep a useful baseline. If 24 lb already feels comfortable and predictable, keeping it is a valid choice. If the current string or original setting is unknown, establish a recorded setup with the stringer first.
- Change one thing. Discuss a 25 lb trial using the same frame, string and stringer. That one-pound step is an example, not a universal adjustment or a promised improvement.
- Compare normal shots. Use the same shuttle type and similar sessions. Note the effort needed for clears, net-shot consistency and comfort on off-centre contact. If the change feels worse, return to the previous setting rather than increasing again.
Take the stringer a short note: “Same frame and string as last time; 24 lb reference; I want to compare a firmer feel.” Record the new setting and date so the next restring has a useful starting point.
Compare tension settings in lb and kgf
These are force conversions, not player-level bands. Choose within your exact frame’s guidance, then compare with your recorded setup.
| Reference tension (lbf) | kgf |
|---|---|
| 20 | 9.1 |
| 22 | 10.0 |
| 24 | 10.9 |
| 25–26 | 11.3–11.8 |
| 27 | 12.2 |
| 28 | 12.7 |
| 29–32 | 13.2–14.5 |
What Tension Is Your Racket Already At?
A pre-strung racket’s original setting depends on its model and stringing history. Ask for the supplied string and reference tension when available; do not assume it is currently 20 lb.
A first restring can help you establish a repeatable setup. Record the frame, string, tension and date instead of assuming a guaranteed improvement over a more expensive racket.
Your Racket Has a Maximum. Find It First.
Find the exact manufacturer’s stringing guidance, including weight class and generation, before choosing a setting. Do not infer a safe range from frame material alone, and have damage assessed before restringing.
Manufacturer examples below are model-specific: Nanoflare 001 Feel, Astrox 99 Pro 3AX99-P, and Astrox 100ZZ in the 2026 catalogue.
| Racket | Manufacturer stringing advice |
|---|---|
| Yonex Nanoflare 001 Feel (beginner frame) | 20–27 lbs |
| Yonex Astrox 99 Pro | 20–28 lbs (4U) / 21–29 lbs (3U) |
| Yonex Astrox 100ZZ | 20–28 lbs (4U) / 21–29 lbs (3U) |
| Aluminum or steel budget frames | Check the exact manufacturer’s guidance; material alone does not set a limit |
The examples show why you need the exact model and weight class. A beginner, carbon, aluminium or steel label does not establish the permitted tension.
Why Higher Tension Does Not Mean More Power
A stringbed deforms during impact, but tension alone does not determine energy return, shuttle speed or placement. Frame, string construction, contact and swing all affect the result; a trampoline analogy cannot quantify the trade for every player.
Treat a tension change as a trial. Keep the frame, string and grip consistent when possible, then compare repeatable shots rather than one impressive hit.
Compare the Actual Playing Conditions
Nylon shuttles: compare the setup with the shuttle you actually use. There is no universal 2–3 lb adjustment, and nylon does not inherently have a heavier base; BWF dimensions specify the same base range.
Cold halls: strings and shuttles both behave differently in a cold gym — the shuttle flies shorter, so people often blame their tension. Play a few rallies before deciding your setup is wrong.
Tension Loss: Your Racket Is Not at the Number You Asked For
Reference tension is a machine setting, not a permanent measurement of the finished stringbed. Settling and later change vary with string, method, storage and use; no fixed first-week drop applies to every setup.
If a setup felt good after several sessions, record that history and discuss it with the stringer. Do not infer an exact current tension from feel or automatically add pounds to compensate.
A changed response can warrant checking the stringbed, but one poor session does not isolate tension loss from timing, shuttles or conditions.
When Should You Restring?
Use a regular condition check rather than a fixed yearly formula. Calendar suggestions are planning aids; wear, changed response and actual use decide whether service is due.
Inspect the setup when you notice a persistent change, and stop using a broken stringbed. Useful reasons to ask the stringer for a check include:
- A string has snapped, obviously
- The bed feels dead and you have started hitting long or short without changing anything
- Strings have visibly shifted out of their grid and you keep pushing them back
- You can see fraying where the mains and crosses meet
Do not wait for a break when the stringbed is visibly worn or its response has persistently changed. Stop playing with a broken stringbed and arrange service. If breaks are frequent, our guide to the most durable badminton strings helps you review the string, setup and wear pattern.
Mistakes Worth Avoiding
| Mistake | Why it costs you |
|---|---|
| Copying a professional’s tension | Their racket, string, preparation and preferences can differ from yours; the number is not a personal recommendation. |
| Adding tension every restring | Tension is not a ladder to climb. Move up only when the current setup feels too soft in matches, not on principle. |
| Changing string and tension together | Changing one variable makes the comparison easier to interpret. |
| Chasing your frame’s maximum | The published range is a constraint, not a target; the maximum alone does not identify a suitable setting. |
| Judging a restring on the first session | Record how the setup responds over several comparable sessions before judging a small change. |
Common Questions
Is 26 lbs a good badminton string tension?
It depends on the frame, string and player. 26 lb is a reference setting to compare within the permitted range, not a standard club or beginner threshold.
What does 26 lbs mean on a badminton racket?
It is the reference pulling force applied by the stringing machine, expressed here in pounds-force. A setting of 26 lbf is approximately 11.8 kgf; it is not a direct measurement of the whole finished stringbed.
Does higher tension mean more power?
No automatic relationship guarantees your power or control from tension alone. Compare the same shots with one setup variable changed.
26 lbs vs 28 lbs — which should I pick?
Choose from your current setup and the exact frame range. A 2 lb increase is not a guaranteed precision gain and should have a clear reason to test.
How long does string tension last?
Settling and later tension change vary by string, stringing method, storage and use. Assess wear and response rather than assuming a fixed first-week loss.
What tension do beginners use?
No number fits every beginner. Discuss a suitable starting setup within the frame’s range; the original factory tension may be unknown.
In Greater Moncton? Bring your racket to a club session for our stringing service. Tell us the current string and reference tension if known, and what you would like to change.
Next: pick the string itself. Our string selection guide covers gauge and construction, and the BG65 vs BG66 Ultimax vs Aerobite comparison uses Yonex’s own ratings.
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