sanpat, i made notes on the back of my desk calender here. where YOU HAD TOLD ME before. the sashings are 1/2" finished. so you cut them l.5" to finish to 1/2". except the outside one just before the tri's. cut 3/4" to finish to 1/4". the only reason i got mine finished is because sandpat and several others jumped in whenever i had a questions.