Relying on a proprietary machine that can wrap corrugated sheets around a mold, they could create high strength cardboard that serves as both support and insulation.

The "Wikkelhouse", or "wrap house", is a truly customizable home composed of 5-meter-square (53-square-foot) modules that click together to create any-sized structure. The 1.2-metre-deep segments (3.9 feet) are first built up from 24 layers of cardboard moulded around a house-shaped frame. Once "printed", the basic units can be customized: cut with one or two spherical windows, kitted out as a bathroom, a kitchen or even a narrow bunk room or two or three can be combined to create larger rooms.