A Hopper Window was first built in the 1890s, at that time it remain popular because this window is properly fitted in a small or compact area. Generally, the Hopper style Window is used for the basement, small bedroom, and Bathroom. This window is opened downward or inward and either it opens in 90 degrees or 45 degrees. This hopper style window is placed on the top part of the wall almost near the ceiling for good ventilation.