I'm about to rip out my old 700 X 700 shower enclosure and put a new one in. It will need to be raised as the waste piping is above ground. Not a problem there. I was thinking of going for the wet room look so that I can tile the floor of the shower. I have been looking around at wet room kits and videos on YouTube, and am I missing something, or could you not just build a slight slope with plywood and tile over the top instead of buying one of the expensive kits. I'm thinking of getting a full width linear drain and put it at one end so I could have just a single fall from one side into the drain. All of the kits I have seen involve sealing up all the joints of the tray to the walls including the corners but surely it's the tiles job to stop water from penetrating? Is a timber and plywood slope a feasible option?