Originally Posted by Treasureit

I don't know what it means exactly, but I just read this tip about adding 1/2" sashing...they said to make it 1" wide then after it is sewn on cut it back to 1/2" (or 3/4") using a see through ruler and putting the measurement on the seam and cut it. Apparently it is hard to sew 1/2" width straight and this is supposed to help.