OH-oh, an error. I have a reversal problem. First total is 256, but it didn't change the right total of 266.
alikat110, there will be enough because the fabric is wider than 40 inches. The extra picked up on the strips will cover the 10 1/2 needed to take care of the first border. Also I added in 10 inches for extra, but you're right, that is a consideration. I just cut binding and I think my mind was there.