Number of colours / sizes? Whilst we do retain a variety of various thicknesses and colours, if we do not have stock of your particular necessity, it could possibly normally be sourced to suit your needs swiftly and cheaply. An intermediate board e.g. 3 or 4mm may be used for https://www.indigosupplies.com/blogs/news/protect-floors-and-surfaces-with-correx%C2%AE-temporary-floor-protection