In building construction, topping out (also known as topping off) is a builders’ rite traditionally held when the last structural beam is placed atop during its construction. The topping out of the facility doesn’t mean the project is completed but it has since come to mean the structure of the building is finished, whether there is a ceremony or not. The putting the last structural steel beam or final roofing piece in place on a building is a project milestone and signifies that the structure has reached its maximum height.  In America, the final structural piece is often painted white and signed by members of the construction team. Read more