We are tiling our shower in our master bath right now, and had NO idea what "fun" it was going to be. We are the epitome of do-it-yourselfers- and should be okay but we can't figure out how to do the corners of the shower curb- where the wall meets the curb. Every book, and site I have been too either just skips over this part or tells you to use a pre-cut corner or "shower dam" We can't find these anywhere in our area - Home Depot and Lowes both looked at my like I was crazy. I KNOW people tile their showers around there, I see them all the time in model homes. Is there another way to do this, and still have it be waterproof? Can I just glue the membrane down onto the curb- especially where the cut has been made? Any advice would be appreciated- I also need to know if instead of covering the curb with mortar, can I just cover it with cement backerboard? Thats what they told me at Lowes...
Thanks

Take a look at Harry's "shower construction" on this site. I think your questions will be answered and you have pictures to boot. As far as cement board on the curb; it's really not a good idea unless you plan to use a waterproofing membrane over the cement board. This would include Schulter kerdi, Noble membrane or a paintable type like Laticrete 9235.