From my reasearch the answer is no, but I am not confident that my research was exhaustive enough to cover everything.
Basically, these are the walls and windows found in the Seabloom Villa that you can buy in the store for like 4 or 5 bucks (solid value BTW). I was wanting to close off one of the walls with the same wall art/style, but it appears these do not exist.
If am wrong, and they do exist, please point me in the right direction to obtain them.
If I am correct and they do not exist...well that just stinks.
In game screenshot.

I boosted the exposure in this screenshot to make the details stand out (easier to see to help determine if this exists as furniture or not).

Thank you in advance.
"Class identity isn’t just about power or efficiency. It’s about symbolic clarity, mechanical cohesion, and a shared visual and tactical language between players." - sans-culottes