I have a shower with no curb -- it's designed to be a roll-in. There is a vinyl sweep on the bottom of the door, and there is absolutely no problem with water. On one side of the door we have 3" tiles (the inside the shower part) and on the other 12" tiles (the rest of the bathroom floor). You don't need a chrome strip. All it will do is get grungy. As for French doors, that's fine, if you want to spend the extra money. We have one door.

slc, we replaced our standard tub with a shower only, using the kerdi shower kit. With the slate tile on top of the curb, the outside finished cork floor to top of curb measurement is around five and five 8ths high. The inside shower floor to tile top is around 3. I find my shower curtain blows in a bit at the bottom, but I generally solve this by putting a shampoo bottle on the bottom hem, on the curb, or making sure the window in the shower is closed while showering. Had I realized that the inside measurement was higher with the kerdi floor in, than the outside.. well duh!! (brain malfunction on my behalf!!) I'd have raised the curb another couple of inches, just to not feel the cold curtain on warm body parts. Someone had mentioned in passing that perhaps I have an issue because I have over a foot of space above the curtain rod to the shower arch, and if I got a longer curtain (to the inside top of the arch, I might not have this issue. Haven't done it yet! Good luck! Kym

So there will be a height differential between the two floors? If not, you could just have the wood go right up to the tile floor. Sorry if I am not explaining this well, but our tile and wood floor meet in the doorway with no threshold. Assuming there is a height difference, I probably would choose a wood threshold -- unless you want to use a different material for visibility? Hope others will chime in with suggestions for you. [oops typing at same time as cpartist]

Creative Tile Eastern CT said: "Tough one to explain. Based on 1/4" per/ft. slope or 2%. Shower 10'x3' for example. If the drain is 5' away from the far wall your floor will slope 1-1/4"" from wall to drain. If that same shower is 36" wide with drain in the center it will slope 1-1/4" in 18" as the height around the perimeter remains the same as the furthest distance." I reread this and looked at a pic of a walk in shower. I think I might get it. I keep focusing on the long part of the current tub/shower that will be a minor slope according to this explanation, but the issue would be that the other three sides would be a more steep slope so it wouldn't look uniform. that' more of the issue, right? It would potentially look like a tub inside of 4 walls (3 walls and a curb). The only thing is that I'm wondering how often tile guys use those exact dimensions because I've seen drains on one end and even fabricated showers with the drain on one side and I don't believe they end up looking like a tub. Maybe they don't drain well? I just visited a friend's really pretty shower with 18" tile and in some spots her shower was level and other parts it was 1/2 a bubble. We looked at the water sit on top of the tile and never go down the drain. It's AZ but she is starting to see minor calcium deposits so will now have to squeegy the floor, too, which wouldn't be good.