Items over 30kg can only be shipped from Monday to Friday. If purchased prior to 6pm, be sure to allow up to two small business times for shipping. Orders positioned after 6pm Thursday will likely be delivered after the weekend. Our weighty-obligation temporary protection board is made from fluted polypropylene https://www.indigosupplies.com/blogs/news/protect-floors-and-surfaces-with-correx%C2%AE-temporary-floor-protection