Long before computer renderings, architects built physical models. They still do. A physical model is a scaled three-dimensional representation of a building, made by hand from materials like cardboard, basswood, foam, and acrylic. It lets designers and clients see the building in space, from any angle, in real light.

Models serve different purposes at different stages. A sketch model is rough and fast, used to explore massing and form. A presentation model is refined and precise, used to communicate a design to clients or the public. A construction model may show structural details or assembly sequences.

Building a model is a way of thinking. The hands discover things the screen misses. A model shows how a shadow falls across a facade, how a roofline meets a wall, how a building sits on its site. It also exposes problems. A model that looks awkward is telling you something.

Digital tools have not replaced physical models. Many architects use both, moving back and forth between the two. The model is not just a representation. It is a design tool.