Yes . I am looking for something like the photo above. I believe 2x6 wall will provide a 2" depth . Is that enough for mounting vertical cellulars ?

Thank You. I stopped by at our local home-depot to checkout the depth of vertical shades and the rep there mentioned that sliding doors can only be used with outside-mount shades and inside-mount is not recommended. I am guessing he didn't understand my question !

If I recall correctly, they weren't 100% flush with the walls (as depicted in my sketchy diagram) but set just far enough away that they didn't hit the walls when opening. I last saw them was 10+ years ago and I was in college mode (not home owner mode) so it's a blur, but I'm going to tour the house in a few months. If we haven't figured it out by then I'll post a video. One of my internet friends had the same concept in an apartment of a similar vintage somewhere in the deep south (mine were in the midwest) so I don't think I dreamed it up! :)

"I went to work in an office that had a pocket door that never worked right because someone had driven nails into it at some point and it was never the same after" (palimpsest) Yes. This happened to us when DH nailed the baseboard on the wall between the laundry and kitchen. The door came off track. When we renovate I will replace or remove. However, this was builder grade. On our extension I added three pocket doors. The one I had put in for the powder room is a solid core door, not thinner than most doors, as I wanted as much sound-dampening as possible with such a device. We used Johnson Hardware - not the home depot variety which runs $ 40 or so, but commercial grade. Look at the Johnson site under 1500 Commercial Grade and you will also find non-standard size frames (door max thickness 1 3/4"). Use a good carpenter.