|How Do I Know What Size I Need?
We have developed an exclusive Excel® based form to easily calculate the size you'll need. We have also included availability of the sizes by location in our sizing tool. It's available as a quick, certified virus-free download by clicking one of the links below.
Excel 2007 and newer download
Excel 97 - 2004 download
Not sure which version of Excel you have?
The Excel 97 - 2004 version is compatible with all versions of Excel.
Don't have Excel?
No problem, click here to download Open Office, it's free and compatible with all versions of Excel files. It runs on PC, Mac and Linux.