Going by what I see on this theme, it's full width with the user box. If it's theme based, I'd assume you could modify it via the CSS or maybe under the template tab in Host Settings.

I can change the width of the userbox, and I can change the width of the div.section (that contains the medal area) but the medals themselves will only populate a certain width of the div.

We have large medals, and currently three to a row; there's room in the userbox to fit four, but I can't figure it.

you will need to rebuild and update the YAF.CONTROLS DLL

approx line 618

 // skip hidden medals
          if (!f.AllowHiding || !SqlDataLayerConverter.VerifyBool(r["Hide"]))
          {
            if (inRow == 3)// Change to 4
            {
              // add break - only three ribbons in a row
              ribbonBar.Append("<br />");
              inRow = 0;
            }