What is the term for assembling small pre-fab forms into one large form?

The term for assembling small pre-fabricated forms into one large form is "ganged." This term refers to the process where multiple smaller forms are combined to create a larger structural element. This technique is often used in concrete construction, where several smaller formwork pieces are put together to make a single cohesive form that can then be filled with concrete.

Ganging forms helps in increasing efficiency and consistency during construction, allowing for improved handling and installation while ensuring that the structural integrity of the finished product is maintained.

The other choices represent different concepts that do not describe the specific action of combining smaller components into a larger form. For instance, "stacked" implies vertical arrangement but does not capture the idea of joining multiple forms. "Monolithic" usually refers to structures that are made from a single pour of concrete, emphasizing uniformity, while "unified" suggests a combination but does not specifically indicate that the method used involved pre-fabricated forms.