Can anyone check on this?
They can, with some finagling.
Although, personally, I find that it is just sooo much easier to build a two story structure with only one big room (no internal ceiling, just the roof) on one of the vacant foundations. It looks better and you get plenty of room.
If you're on PC http://www.nexusmods.com/fallout4/mods/9758/? moves the signs from the top of the stalls to the front, making it a lot easier to fit them in buildings.
I did this, kinda, for my Inn. The downstairs was a complete big room, being the bar and eating area. The upstairs was split up in different rooms and such, each one supporting a bed. However, in the bar area, there isn't an upstairs part due to needing that room for the bar itself.
I usually build places with high ceilings or put the shops outside, but as suggested they can be made to fit inside. It's weird, though -- I know the OP is talking about Sanctuary, but I once used the old but intact barn on Spectacle Island for a bar, but the third-level restaurant won't go in there unless you turn it so that it's facing perpendicular to the doors. Not what I wanted, but I made do. (Oh yeah, I'm on Xbox One, so no mods as yet).
Anyway, at Sanctuary I don't bother putting them in the existing houses. Too fussy. But it can be done if you're willing to settle for less than optimal positioning.
I almost always put shops inside the building , level 3s can be trick to hide the top of them sticking out in the upper floor if I decided to put them inside of a one story structure.
When I have space enough I make the floor to the shops with 2 stories , or simply make only level 2 shops because they fit perfectly in one story floors , since I don't mind anymore if the happiness isn't going above 80s.
Edit: Forgot to mention my opinion in the OP ..
Shops inside Sanctuary buildings can look uhh how can I say ? Uncomfortable ? Because the houses in there have interiors more compact than they look.
Yeah I've got a hospital set up in one of the sanctuary houses, the level three clinic fitted in the main room with no trouble.
Now, meanwhile, the house at Taffington is pretty accommodating of shops.
Does that still work? I haven't been able to get it to work since 1.4. The concrete block trick seems to be gone as well.
Rug trick still works, though I find it unbearably fussy at times. Great for eliminating gaps in junk fences and recessing Nuka machines into concrete, stuff like that, but it's certainly not an architectural panacea.
Heh. I was sinking a Nuka machine into concrete and when I pulled the rugs out it disappeared. Weird, I thought. Built another one and left the rugs alone. No troubles. Then, next thing you know, I happen to go down to the floor below (a three-storey space where I've got my generators), and there was the vanishing Nuka machine, up on the top storey above the generators and directly below the other one upstairs, set into the concrete.
Oh, Bethesda, how I do love thine games. LOL.
I normally build a central marketplace building and give it a high ceiling.
Is there a need for that glitch any longer? IMO in v1.4 Bethesda has improved it to build things more easy. E.g. I build metal houses over the existing ones in Sanctuary, because steadily looking at half destroyed houses is a pain in my eyes. With metal and upper floor pieces I have not problems using it, even though with concrete foundations it is not so easy.
http://postimg.org/image/l0cnu3r05/
No rug was needed.
Agreed - the clutter version gives the stalls a lot of character, and helps them look as though they actually have things to sell
Use the rug glitch.
Hopefully that glitch doesn't get patch like the shipment glitch..
And even if it does people would still just uninstall their game, disable wireless, reinstall game, glitch like crazy then enable wireless which will then reapply any updates and patches.
I just built a courtyard with half a roof, The shop front sticks up over the roof so you can butt it right up against it. This at least makes it seem like the shopkeepers are under some sort of shelter.
Heh, I've been manually putting random junk I find on the counters of General Goods sellers.