What I put on my deck was 1' sq interlocking tiles. I bought them at Lowes. Not only is it non skid, easy on the feet (about 1/4" thick) I can pick them up and clean underneath quite easily. I have a I/O and also placed them below deck. I'll post a picture of product if you like. Whatever you coat it with, this will hide any mis-match and not only look good but nice to stand on.