Tile and vynil are both pretty bad for a mud room when wet they become a skating rink.They have been using a new flooring in newer commercial buildings it looks like rough wood planks - tile and I've seen some that looks like slate-it comes in lots of colors. A lot of your newer burger places have it -keeps the lawsuits down. Lowes - Menards and Home Depot all sell this product. Have them ask for the non-slip commercial vynil.