I went back and researched it again. I got the measurements here from someone called Magpie who posted it in answer to someone else's question I guess. I got it through googling. Anyway, it is:
22.5 inches long. 1 inch wide at one end and 4.78 wide at the other end. This includes the 1/4 inch seam allowance.
Originally Posted by debbiewi
Omaof Four - where did you get the measurements?
debbie