Solid frame constructed from 5/4" kiln dried hardwood and 3/4 structural laminates. Mortise & Tenon Joints are blocked, nailed and glued. removeable and reversible seat cushions with layers ,1.8 density foam core, Memory foam toppers on each side, encased in a channeled poly cotton bag containing a 50% feather and 50% Dacron Mix. Sinuous spring seating system with 8 gauge tempered and pre arched metal wire springs tightly spaced 5 inches of center and cross tied with silent tie wires in 2 locations