Sorry, this layout isn't going to work at all. Remember to account for walkways; as shown there is only 1' between the end of the sectional and the door wall. If you have seating dividing the room in half it can only be 5-6' wide, or a sectional with a back length of no more than 8' pushed right against the long wall.

18-20' is not too far for TV viewing if the tv is at the correct height and it is large enough. In fact with really big TVs farther back is better.

Does it change the fact that there is no door? It's just an opening. It probably would be about two feet away. And you can walk in from anywhere in that 6ish feet? I don't know articles make it seem that you shouldn't sit further than 10 or soish feet. Even this would be more like 12-14. If I push the sectional by the windows isn't there too much open space then?

So the double black line that says 11' 6 " is the opening to the living room?

Yes give or take

Nevermind the measurements got a little weird. The short wall is almost 12.. So the opening is about 6 feet or so. It is the double black line but it's not 12 feet big.

That looks like it will work. It is hard to see because the drawing makes it look like your opening is actually a wall.

I like the openness of the sofa facing the hallway.

Yea I'm not savvy with the tool and couldn't figure out how to make it open so I made the double black line to indicate an opening. I just struggled because I wasn't used to opening the door and seeing possibly a back of the couch but it's the only thing that seems to make sense without sitting super far back and having all that open space in middle.

Yes and I should indicate that the hallway opens up to a dining room and staircase...so if u were looking out of the living room u would see the dining room and the side of the staircase

You're right. I was looking at the window width as being the room width, so figuring each square to equal 9".

Is there a post 3' into the doorway? Where that grey dot is? If so just less than 2' is too narrow for passage from TV end to window end. Really inconvenient to have to go out and around especially when cleaning. If not then yes, it could work though still too crowded for my taste.

There are smaller scale sectionals that are readily available.

I have to say, I haven't read anything that indicates more than 10' from TV is a problem. But I am far from an expert. Maybe you are going by the size of your screen when you find that info? I know I regularly watch shows on my 20" computer monitor from 14 feet back or so and although it isn't optimal it works. And that's a tiny screen and not particularly high quality.

Ok. The opening is 6' wide in a wall that is 21' long, is that correct? And is the doorway centered, leaving about 7' of wall on each side of it?

The opening is about 10' wide leaving 5 on each wall. Sorry my first number was right. I got mixed up when someone up top mentioned the 11. No physical door. Just a 10' wide opening.

And there is or is not a post 3' into the left side of the doorway?

no no..that was just me measuring...after u open the front door there's the 5 feet of wall and then it opens for about 10 feet...Is it weird to have the sofa or sectional int he middle of room? I'm feeling that the sectional may be too overwhelming and that sofa and loveseat may work better.

sorry for the confusion

No loveseat on the tv end. Just the sofa facing the TV on a nice long console.

Yea I think the sectional doesn't make as much sense anymore. I would have to throw a love seat near the longer wall though so more seating.