If my calculations are correct, I have done it the old rationed way, you will need. 24 inches for the first boarder, that's 6 cuts at 4 inches wide, ,you will need 35inches of the next boarder, that's 7 cuts at 5 inches, and for the third, 8 cutss at 6 inches equals 48 inches SO
1st is 24"
2nd is 35"
3rd is 48"
I think I have allowed lots providing your cuts are accurate and your fabric is squared up