The following thickness up is 17mm thick is well suited for recesses which are 14mm, 15mm, 16mm and 17mm deep. 24mm thick will get the job done for recesses that are 21mm, 22 and 23mm thick along with the 30mm will work for recesses which might be 27mm, 28, https://knoxzywtr.blogozz.com/23449244/5-tips-about-coconut-matting-you-can-use-today