The term 'floorboard support' can be summarized as a JOIST, which is a five-letter word. A JOIST is a structural element used in construction to provide support for floors and ceilings. Joists are typically made of wood, steel, or concrete, and are laid out in parallel rows to form the framework of a floor or ceiling. Joists are essential for providing stability and strength to a structure, and are often used in combination with other materials such as beams and girders.