The most that I can salvage from my 5 1/2 inch strips (because of the way it's cut) is 2 inches (or one block in the pattern). The pattern isn't straight and goes off the strips that I pieced together to make the borders.
The picture doesn't capture fully how far it's off. I might have enough left over black fabric for a 2 in border if I cut the blue border fabric down and still have enough black fabric for the binding.