or cut your pieces just a little larger and trim to size as you go....and check your 1/4" seams- being just an itty=bitty 1/8" off adds up quick- two seams off by 1/8" makes you a 1/4" after 2 seams- a wopping 1/2" with just 4 seams...they add up -- 8 seams and you are a whole inch off!