One advantage of having Tallywalls is that you can easily place wall openings and little interior windows into any space. Whether you want a hollow shelf that creates a beautifully insight into the other room, an inserted shelf into one side of your room, a window-like intersection, or an inserted TV opening, everything is possible. Windows and shelves come in a variety of sizes and looks. Windows can have glass separations or plainly act to open up and connect two rooms. Shelving units can either extend the entire length of the wall or just for smaller panel-sized sections.