Correx® is a really inexpensive signage solution, and we offer An array of great price bulk reductions for large orders and bundles. We have great cheap Correx® bundles which use essentially the most economical sizing to lessen waste and boost pricing. Drill holes are put 20mm in with the corners https://www.indigosupplies.com/blogs/news/protect-floors-and-surfaces-with-correx%C2%AE-temporary-floor-protection