House of Leaves. It's a book that's been around for a bit, but I believe that it got popular with the zoomers because it was an inspiration for myhouse.wad
It's an abnormaly written allegory for loneliness. Theres a lot going on in the book, but the terror starts when a journalist discovers that his new house is a fraction of an inch bigger on the inside than the outside. After that door leading to a pitch black room just shows up in their house.
It's a reference to a horror book that starts with a protagonist discovering his house is slightly bigger on the inside. Spooky hijinks ensue, and somewhere along the way you loose your mind reading that book.
I don't know anything about the book in question, but I assumed it was because of the way the hook at the end of tape measures has a little play to it. If it's a poorly made tape measure that doesn't account for this properly, you get slightly different measurements by hooking around something versus pushing it against a surface.
Don't look up too much the first time reading it. Just enjoy the weird ride. Feel free to page over to the relevant appendices every now and then, although they didn't make a ton of sense to me. When you're done, check them out. Apparently there's various secret messages and stuff back there that reveal more of the story but like I said, I still need to figure them out myself lol. Once I finished the book my mind was too twisted up trying to figure it out to look into them, but I'll come back... one day.
I kind of found the book sort of teaches you how to read it if you pay attention to the structure in the first few bits. But multiple bookmarks can help.
I am guessing no one's gonna give an actual answer to what the meme is about (yes I know it's from house of leaves, I have 0 interest in reading it) so would be actually nice to have a more in depth explanation
The story begins with a man doing the things described in the picture. He is puzzled and becomes interested in finding out more about it. His wife is not very happy about it. It's easy to get lost in a new hobby. Other people have written their opinions on the strange house, and those are included.