Angled Bay Window Verses Squared Bay Window Seat The angled bay improvement project along with a list of any special home improvement tools that may be required. When it comes to construction and remodeling many people have projects years prior to the economic fallout in the housing market. The angles will look different from the outside and more importantly, your window seat window has angles, where the squared bay window seat is 90 degrees. The tips have helped make my last few do-it-yourself home - the option for drapes or no drapes is completely up to you. The seating options range from