Indicator contour cutting is an inexpensive way to get your indicator found and is also common with estate agent boards and also position of sale signage. Customers also regularly opt for Correx® for life measurement cut out of people and solutions. Drill holes are placed 20mm in through the corners https://www.indigosupplies.com/blogs/news/protect-floors-and-surfaces-with-correx%C2%AE-temporary-floor-protection