How To Determine Correct Stirrup Length
While there are some guidelines, stirrup length ends up being mainly a matter of personal preference. Some folks like to ride with shorter stirrups, some folks with longer ones.
The activity you're involved in can also impact stirrup length. Heading out for an all day trail ride and you'll probably want the comfort of stirrups on the longer side. Saddling up to train a young horse and you'll probably want the security and feel of shorter stirrups.
There are several good techniques for estimating a starting point for your stirrup length. One method is done from the ground and two are done from the saddle. Many riders will find these techniques will give them the right length. Others will need to adjust the length further to fit their own personal preferences.
If you're a beginner rider, you should err on the side of shorter stirrups. You'll have more control while you work on further developing your riding skills.
Check out the other Western Saddle How-To's: