Furniture Design Mäss Transformable sofa. by Claudio Sibille I wanted to create a modular sofa that could be transformed in several separate seating solutions. The whole furniture consists of just two different pieces of the same shape to form a variety of solutions. The main structure is the same lateral shape of the arm rests but only thicker. The arm rests can be turned 180 degrees to change or continue the main piece of the furniture.