Many patterns have mistakes! Way too many! However in looking at your measurements, you need to subtract 1" from the 6". The middle 2" strip loses 1/2" (1/4" on each side) and the other 2 strips each lose 1/4" on one side eac which equals 1" all together. This comes out to 5".
Last edited by snipforfun; 03-31-2013 at 02:21 AM.