IME, the curtain will stay in just fine-- mine does.

I have to say, though that all the curved rods I've come accross are tub sized. The ones I've used on my stall sized openings have all been straight.

oruboris...I have found a curved rod that is 4ft and can be "cut to size" but since typically a tub holds the curtain in I didn't know if a small curb will be able to do the same.....the shower is small enough as it is and we're just trying to get the most room out of the shower..I really don't want a door because of the dirt/maintenance and inflexibility of it. I can't find anyone with a curbed curtain on a low curbed shower to see if it works or not. Thanks for responding!

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