This giant iPhone table is apparently made of "corrugate and glued together with white glue", which take to mean corrugated cardboard and PVA adhesive (or wood glue). The cardboard actually looks ...

David and his wife, Im, made the coffee table when they were both studying architecture in college. "There was another class that made a large group model from corrugated cardboard," David recalls.

Speaking of ideas that are out of the box, one startup is using cardboard to make eco-friendly furniture. Chairigami manufactures tables, arm chairs, couches, shelves, standing desks, even iPhone ...

This awesome recycled cardboard armchair from Sanserif Creatius is a curvy and comfortable piece that maximizes space by concealing a separate footrest and coffee table within its seat. Dubbed ...