For sofa pieces, choose your seat cushion style: Multi-Seat or Bench. Kiln-dried engineered hardwood frame with mortise & tenon joinery. All wood is kiln-dried for added durability. Plastic shadowline support legs in an Espresso finish. High-gauge sinuous spring and webbed cushion support. Cushions have fiber-wrapped, high-resiliency polyurethane foam cores. Seat firmness: Medium. On a scale from 1 to 5 (5 being firmest), it's a 3. Reversible cushions with zip-off covers. Removable legs. Hand upholstered and assembled in the USA.