Shower Tray Or Tiled Floor . Tiling onto timber can often create problems if water seeps through, as it can cause tiles to lift and water to leak through the floor. I don't mind the idea of a shower tray, just think the bathroom layout would look nicer if the shower was open with glass screens surrounding it and the floor matched the floor elsewhere. BETTEFLOOR Square shower tray by Bette design Tesseraux + Partner from www.archiproducts.com Push the tape to the wall; However, the most popular tend to be the round tray. This design looks great on a square tiled bathroom, and on several different floor panel patterns too.