Of course you can do this. Google John Whipple Vancouver, he's a very knowledgeable Canadian contractor who builds lots of curbless showers. He's the internet go-to resource for what you're describing. He has a blog and his own website, also lots of photos on Houzz.

Now that I think about it some more, you must at least have a bar across the top of a sliding door.

If you use a trench drain, hot mopping cannot be used for waterproofing. Instead, you will need to use either a Kerdi like or a painted on membrane.

Thanks or the ideas.

Davidtay - we are not using a trench drain. We are using standard drain by ebbe.

Dianne47- I don't mind the top bar.. Just don't want to deal with the bottom track cleaning.

Pharaoh - I looked at the hydro slide link and it looks like there is a track in the bottom.. Or maybe I am not understanding how it is installed.

There is no track at the bottom.

The fixed panel can be installed with clamps or channel.

The moving panel has a small metal bump to keep the water in. We replaced it with a clear plastic piece. I think it can be eliminated depending on your installation and experience once the door is installed.

I hear you on wanting the trackless bottom, those sliding shower door tracks are a royal pain. Good luck on your search.