This Architectural Drawing is AutoCAd 2d drawing of AutoCAD Sofa set layout cad blocks in dwg file.A couch consists of the frame, springs, padding, and covering. The frame is usually made of wood, but can also be made of steel, plastic or laminated boards. Sofa padding is made from foam, down, feathers, fabric or a combination thereof. Sofa coverings are usually made out of soft leather, corduroy or linen.