firm sectional sofa

Common frame and support materials listed include solid wood or hardwood frames, plywood frames, steel or other metal frames, and metal support legs. A few listings also note non-structural components made from melamine or plastic.

Common upholstery materials shown include chenille, plush corduroy, 100% polyester fabrics, and cotton/linen blends (for example, a 50% cotton / 50% linen mix). Availability varies by model.

Listings describe layered or double-layer cushion systems, high-density foam or sponge fills, and combinations with sinuous/coil or pocket-spring support. A few models include feather-blend or feather-filled cushions on select pieces.

Some listings include integrated USB ports and power outlets, hidden under-seat or lift-top chaise storage, and armrest organizers or side storage pockets. Feature availability varies by model.