If you're looking to install fake white walls, there are a few things you'll need to do. First, gather your materials. You'll need some sort of backing (foam board or plywood work well), white paint, and adhesive. Next, cut your backing to size and adhere it to the wall. Once that's done, paint the entire surface white. And finally, apply your adhesive of choice (we recommend liquid nails) and stick on your fake panels. That's it! Your fake white walls are now installed.