Modus Furniture 3ZH3L511 Royal Tufted Platform Bed, Queen, Dolphin Premium bed frame uses a 1-piece headboard that extends all the way to the floor; because of its size this product ships via freight carrier Platform bed mattress support system consists of a steel center rail with 2 steel support legs and 24 wooden slats Cross slats are bent plywood, which creates a springier, more elastic mattress support than a traditional box spring or platform bed system Headboard legs are fitted with countersunk adjustable levelers for use on uneven floors Mostly tool-free assembly process uses rubber clips and thoughtful design to simplify the procedure