is the term used by ironworkers to indicate that the final piece of steel is being hoisted into place on a building, bridge, or other large structure.1 project is not completed, but has reached its maximum height. To commemorate this first milestone the final piece of iron is usually hoisted into place with a small evergreen tree (called a Christmas tree in the trade) and an American flag attached.2 piece is usually painted white and signed by the ironworkers and visiting dignitaries (figure 1). If the project is important enough (and the largesse of the contractor great enough) the ceremony may culminate in a celebration known as a out party in which the construction crews are treated to food and drink. Ironworkers belong to the union called International Association of Bridge, Structural, and Ornamental Ironworkers, which was established in 1896. Local #1 is in Chicago, the putative birthplace of the skyscraper. work encompasses a wide variety of construction activities from the placement of reinforcing steel (called re-bar) in concrete structures, to welding, to heavy rigging, to the more visible and extreme activities like the erection of skyscrapers and bridges. oldest continuous aspect of the trade is practiced by ornamental ironworkers who install metal stairways, ladders, catwalks and a wide array of decorative metal structures. Ornamental ironwork predates the union and the use of structural steel by many hundreds of years. Even though steel long ago supplanted iron as a building material the men in the trade are called ironworkers-not steel workers-and they usually refer to the columns and beams as iron. One reason the ironworkers observe the topping out custom is the simple fact that they are the first workers to reach the top of the structure. I guess the impulse to commemorate the achievement is similar to that of mountain climbers-or astronauts landing on the moon that matter.3 Topping out the structure means the end is in sight the raising-gang-the men who actually set the iron in place. There is more work to be done, and ironworkers will be involved in some aspects of it, but the heavy work is done and the raising gang is almost out of a job. While no two topping out ceremonies are the same, they usually have some combination of a tree, a flag, the ritual signing of the final beam, and a party. custom of decorating the uppermost point of the structure with an evergreen tree is a tradition that predates the structural-steel industry in America by hundreds of years and has old Northern European roots. Although the topping out tree has ancient roots there is no consensus among modern ironworkers as to what exactly the tree symbolizes, or when and how came to be used by the ironworkers. According to Ironworker, the union's official publication, for some the evergreen tree symbolizes that the job went up without a loss of life, while others it's a good luck charm the future occupants(1984:11). Other accounts attribute the tree as signifying simply that we [ironworkers] did it (Kodish, 1989:2). Little scholarship has been published on this custom. Most of what has been published has appeared in newspapers, popular magazines and engineering trade journals. One can get a feel the age and scope of such tree rituals from James Frazer who discusses tree worship extensively in Golden Bough. (Indeed, the title of the book itself is an allusion to tree worship.) For example, in Chapter Ten, Relics of Tree-Worship in Modern Europe, Frazer reports that was common practice in spring or early summer the people to go into the woods and cut branches and fasten them to every house (1922:139). Frazer further remarks, The intention of these customs is to bring home to the village, and to each house, the blessings which the tree-spirit has in its power to bestow (1922: 139). evergreen tree's ability to survive the harsh Northern European winter must have made a powerful life-affirming symbol. …