Renee, I am just a tire kicker but with my rusty math I cannot divide 4x4 sections into the dimensions you give.
I am guessing the overall size is in yards? Is there a 1 foot border?
I did try to find your pics, but Google to craiglist from UK gave some strange results - and no joking, someone was offering the ashes of an unknown grandmother for sale!
If you want the link (and I hope it is tounge in cheek) here it is
http://www.craigslist.org/about/best/bal/1393232597.html
I know its off topic, unless someone has danced with a partner with less life in her(and now I am being irreverant).
Exact dimensions please, and perhaps a link to the actual photos.