When talking about the dimensions of the bat we must also consider the dimensions of the batter as an incorrectly sized bat will have a detrimental effect on the batter’s technique or technical development for young players. On the physical side a bat that is too small can cause injuries to a batter’s back, knees, and ankles. A bat that is too big or too heavy, in the case of young players especially, it can cause injury to wrists, elbows and shoulders. To get a good idea of size the table below gives a basic guide to what size player should use what size bat.

| Height (Feet & Inches) | Recommended Bat size |
|---|---|
| Up to 3ft 9” | Size 0 |
| 3ft 9” to 4ft 2” | Size 1 |
| 4ft 2” to 4ft 5” | Size 2 |
| 4ft 5” to 4ft 7” | Size 3 |
| 4ft 7” to 4ft 9” | Size 4 |
| 4ft 9” to 5ft 1” | Size 5 |
| 5ft 1” to 5ft 3” | Size 6 |
| 5ft 3” to 5ft 5” | Harrow |
| 5ft 5” to 5ft 7” | Academy |
| 5ft 7” to 6ft | SH |
| 6ft + | LH or LB |
