Cut the cardboard sides of your box as the heavy black lines indicate. Fold outward upon the dotted lines.
A. A plain window without blinds or awning. Cut the cardboard out on all four sides.
B. Window with blinds. Cut the top line, the center line, and the base. Fold outward on the dotted lines.
C. Window with awning. Cut side lines and base. Bend cardboard outward and upward to make the awning over the window.