National Office Furniture Justice collection upholstered arm guest chair has a frame constructed of exterior beech with joints double doweled and securely glued for maximum stability. Corner blocks are screwed and glued into all four corners of the frame.Seat and back are solid molded plywood panels are covered with 3” of high grade polyurethane foam on the seat and back and 4” in the lumbar region. Chair meets BIFMA and ANSI standards for quality and safety, and is GREENGUARD® Certified and meet stringent indoor air quality standards.Ships fully assembled.