These sofas often utilize hardwood frames (poplar, pine) with high-density foam (30 kg/m³+) and soft fabrics like boucle, velvet, or linen. They are designed for intimate seating, often featuring plush, semi-detached back cushions. 

• ?Width: Commonly 233–262 cm for standard 3-4 seaters, extending up to 453 cm for larger, multi-seater modular units.
• Depth: 100–130 cm (total), with seat depths often around 60–75 cm.
• Height: 70–85 cm, providing a low, conversational profile.