furniture item that takes up a full square?

[BlueberryPoptarts]

i'm trying to create a closet for my bedroom, so i'm using simple panels kinda like sliding doors. my only issue is that the simple panels don't make a corner, so there's a weird gap and it ruins the "flow" of it.
i was looking for some furniture that's tall and fills a whole square/rectangle. i've used both the changing room and the large bookcase, but neither of those really look good enough. i just need a corner to connect the panels
i know this is like really specific and weird, but i'm just looking for suggestions. thank you

 

[Bluebellie]

There’s the server if you are looking for a dark piece. It’s black, if you turn it around, it looks like a wall column. Only takes 1 square. It does make slight noises though.