Stair Gauges are nothing new. Carpenters have been using them on framing squares for over a hundred years. What’s new is using them on tools other than framing squares. A few years ago, one of our team members put one on his DelVe square to do repetitive angle marking and since then we’ve been coming up with clever new uses for them. We’ve suggested them so many times in our videos we finally decided it was time to stop selling them for other people and start making them ourselves. Introducing Woodpeckers Stair Gauge Set.