Neverbedone, you could do a variety of things. You could upholster the stairs only, both runs, and purchase shorter size runner to lay on a thin pad on the landing. I like this option best be use it allows you to pick up the rug no clen the floor underneath. Or, the installers could attach another piece of the runner on the landing. Do the stairs turn 180 degrees or 90 degrees ? If the latter you have a third option. From either direction ( bottom stairs up or top stirs down, depending on who Mose the most sense in your co figuration) let the runner continue onto the landing and stop it short of the next run. Have it bound or have them I still it so the fringed edge if there is one is on that end. Then just start upholstering the next run from under the stair tread.

So many great comments/advice to come home to! Thank you all very much. Helps a lot- especially since I don't speak French at the moment, so just having some "conversation" in English feels good. I'm gathering that my issue about the rug is really an overall issue regarding the configuration of (possibly) all my furniture? As I'm sure everyone knows pictures are really poor at showing space and it's my own fault and lack of math skills that I'm unable to provide dimensions. I think I found an app that can use the camera to calculate square space- I'll try it. But: I DID try to float the couch in a few spaces to no avail however never facing the window wall- great idea. Just using my tape measure now I can see if I do so, I'll need to move the piano. Yeah, it's a big heavy, smelly, old, but beautiful sounding piano- I'm pleasantly stuck with. The book case is awful, I know, it's my 4yr olds- but great idea for a stand. For sure if I move one piece, I move all- but it's worth a try. It's a bit of a puzzle dealing with the heater, lack of outlets, access to tv, and this massive couch. Question: If I'm forced to stay in this position is the area rug really a bad touch? I've never seen an area rug coming from underneath a couch- between the legs. I can't tell if it's a good rule to break here. Thank you again!

I agree that you need to open the space by reversing the seating. The area looks quite heavy and blocked up by the huge armoire and the piece cornered beside it. If TV is inside, I would advise your next step be to replace the armoire with a credenza for TV. The room desperately needs to be brightened and simplified. You have some interesting pieces to work with but many of them seem to be boxy and dark. The dark theme has overtaken the mantel decor as well. Much potential here, if you're interested in tweaking it some.

I think you need to do more with the top of the table versus getting one area rug. Don't keep the same runner; change it with the seasons to bring color and texture which you can't do with an area rug. Area rugs fix you to a space but when you don't have one it feels more flexible and open. I love the color of your floor and I think that's the star that can showcase an ever changing table top decor.  Have fun with it because you're bringing in black chairs, taking out the only color you have which is the artwork. You need color do it with the table.