There are a couple of key things to consider when it comes to hockey stick shafts…
As far as how flex is measured, there is a scale that runs from about 40 all the way up to 110. Most small or junior-size hockey players will use a stick that starts out at 40. Large-size or adult hockey players generally look for a stick that has a flex rating of up to 110. Additionally, how long the stick as — called stick length — should be looked at to make sure that the player is using the proper length stick.
Most ice hockey sticks come in standard size lengths, but just about any stick can be cut to a certain length if needed. Again, a small or junior-size hockey player will generally use a stick that runs 46-53 inches long, and most professional and amateur hockey leagues have rules for how short and how long a hockey stick can be.