I am losing the grid lines on my cutting board but I don't want to replace it becasue I can't find the same size. Its a 30 x 36. I tried Joann's, on line, Blick's etc but no luck in that size. Based on what I saw here (BTW my Walmart has no fabric department) I am going to try to turn the board over and mark the lines with a Sharpie, then turn it back. Hopefully the lines will be crisp enough. Will let everyone know....