I count 10 square across and 10 squares done. I think that this quilt is square. If the squares are 2" finished, then your quilt would be 20" x 20" You have to remember that with the HST you will need 3" squares and then the plain squares will be 2.5" I don't think you will have enough of what ever is used in the border with just a fat quarter. Just count the number of square and half square triangles and you should be able to figure it out in your metric measurement. Good Luck.