How do you determine how much fabric you need to make a queen size quilt using the OBW? Am thinking of trying this pattern but am lost as to how to figure requirements.

Cute Buns did a tute on the OBW here is where it starts : http://www.quiltingboard.com/t-34937-1.htm

I know you need to find the repeats of the fabric and need 6 repeats to make one block - after that well I am lost :roll: LOL

A LOT!! Sorry... :lol:
It does depend though on how wide you cut your strips... as smaller pieces = more seams and they really eat up the fabric :D:D:D