The pergola is made from an inverted shoe-box. The lower half of the box is used. Cut the bottom from the box, leaving a narrow rim around the bottom. Cut the ends as shown in the diagram by the heavy black lines. Mark off pillars upon the long sides of your box with pencil, and cut these as shown by the heavy black lines of the diagram. Two cardboard strips are glued lengthwise at the top over the lengthwise edges left. Strips of card-board are crossed over the open top which was the bottom of the box.