So many people wanted to know what I used to mark my wall plate. Believe it or not, our buddy @martineztools didn’t only make hammers back in the day. He made this “Mark 16” to easily and accurately mark out your 16” layout on any materials. Mark gave me one a couple years back when my son and I went to hang out with him. I never thought I’d use but rather keep it as a memento.... I think Mark would rather I have used it! Worked like a charm and the ink was even still good after all these years.