We realize that the use of multiple measurement systems (metric, decimal and imperial) throughout our site can be a little confusing. We truly do now live in and serve a global village in which very few countries still utilize the imperial measurement system (USA, Liberia and Myanmar for you trivia buffs).
For the listing of measurements on our site, we've chosen to adopt the measurement system most commonly used by our raw material vendors for each specific item. To help minimize any confusion we've created a few guides to help you convert the units and better understand how certain parts may be able to fit together.
We've also included these charts on the "Size Guide" tab on each detail page for handy reference.