Housing has become quite expensive: rents are sky-high across the country and mortgage rates have risen 4.6% since last year. So it’s no surprise that more adults are turning to roommate relationships to help pay for housing. A roommate can magically transform an apartment where you’re struggling between rent and groceries into an affordable home.

Of course, roommates have their downsides, especially if you’ve been living alone for a while and thought your days of sharing space and splitting bills were long gone. And it’s one thing to take on a roommate if you have the actual bedroom to offer; it’s another if you live in a studio or one-bedroom and need someone to split the rent. There are plenty of relatively easy and affordable ways to create a private second space in your apartment, but most of them either don’t offer any real privacy or require you to actually renovate your home, which is unlikely to please a landlord.

So what can you do if you want to add a wall to your home without jeopardizing your rent or security deposit? You can install a pressure wall.

So what is a compression wall? It’s a freestanding wall that holds itself in place through tension. They are non-load bearing and not permanently attached in any way, but they look like real walls in every superficial way. These walls can even have doors or windows and can be soundproofed to enhance their privacy. These walls usually have to be custom ordered from a company that makes them, but the advantage of this is that they can be customized to match the decor and style of the apartment, so they blend in almost seamlessly. And best of all, they can be completely removed when it’s time to move in, leaving no trace.