Depending on why you want to add windows, here are some tips for choosing their location. If you are looking to maintain a level of privacy or security while letting in daylight, the top section is the best location. If you want windows for looking outside or inside the garage, the 3rd section if the right spot. If this location is what you prefer but you also want privacy, request mirror or dark gray tinted panes, as with these you can see outside well but it is difficult to look in.