Hello and welcome from England!
Welcome to the Quilting Board!
If only 12" finished blocks(no sashing, no borders) and the final quilt is 120 X 120 which is a generous king then you need 100 blocks--10 across each row and a total of 10 rows. Gives you an idea anyway of where to start thinking.
Welcome from Colorado. Hope you enjoy this site-you will learn lots :thumbup:
Hello and welcome from Germany!
Hi from Ohio!
Welcome from Ireland
Welcome from Michigan.
Hello and Welcome to the board :D:D:D
Hello and welcome from Ontario.
Welcome from Oklahoma