*Please Call / Text 602-384-7277 or email natalie.undergroundbatsinc@gmail.com if you would like to purchase any Wilson gear*

How to Size a Fastpitch or Baseball Bat (UGB “T-Stand” Method)

Underground Bats | How to Size a Fastpitch or Baseball Bat (UGB “T-Stand” Method)

Choosing the right bat size is one of the quickest ways to improve timing, control, and confidence at the plate. At Underground Bats, we use a simple sizing method that works for fastpitch and baseball and can be done at home in under a minute.

 

Here’s our step-by-step “T-Stand” method.

Step 1: Stand in a “T”

  1. Stand up tall with your feet together.

  2. Hold your arms straight out to the sides like a “T” (palms facing forward is fine).

  3. Keep arms level — not drooping.


Step 2: Find Your Starting Point

Locate the center of your chest — your sternum (middle of the chest).


Step 3: Measure to Your Finger Knuckle

Measure from your sternum to the last knuckle on your longest finger (usually your middle finger).

✅ That measurement (in inches) is your recommended bat length starting point.

Example:
If the measurement is 31 inches, start testing 31” bats (and you may also compare a 30” or 32” depending on strength and feel).


Step 4: Fine-Tune the Feel

Once you have your length starting point, choose the bat that feels best based on swing speed and control:

  • If the bat feels heavy or you’re late → consider a lighter drop or more balanced model

  • If the bat feels too light and contact is weak → consider a slightly heavier feel (only if your swing stays fast)


Step 5: Still Unsure? Text Us and We’ll Size It With You

If you want us to confirm the best fit, text or call us — we help with sizing every day.

📲 Call/Text: 602-670-1762
Send us:

  • Player age

  • Height (approx)

  • Current bat size (length + drop)

  • Swing type (contact vs power)

🌐 Shop: https://undergroundbats.com
Ask us about special pricing before purchasing elsewhere.

Underground Bats | How to Size a Fastpitch or Baseball Bat (UGB “T-Stand” Method)
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