Mike & Pete: Thanks for the info. Mike, I'll see if my daughter can figure out the picture thing. I hammer-chiseled the "lump" from around the drain opening, now the floor is very close to level. Also dug out from around the drain trap so that I can cut the existing PVC trap and reposition it farther from the wall. Looks like I'll have at least 4 inches from the top of the slab to the drain. Tommorrow I'll go get supplies from Lowes and get started, figured I use 3 2x4" for the curb...trying to keep it low for my Dad to step over. Ted

If you're going to have four inches from the slab to the top of the drain, your slope is going to require closer to five inches by the time it gets to the curb, depending on the size of the shower and the location of the drain.

If you're trying to keep the curb as low as possible, you might want to figure out how to get the drain closer to the floor. This might possibly require dropping the trap a little. The drain should ideally be about 1 1/2" from the slab. A little more doesn't hurt, but could be too high for the curb in your case.

Kman: Should have made it more clear, the top of the PVC trap is about 6-8" below the slab giving me 4" of room below the slab to set the drain. Wish I could figure out how to post those pics. I followed Harry's instructions but I can't seem to get the pics transferred over. Thanks...Ted