Raku Japanese Style Tatami Platform Bed (Full, Dark Walnut) No particle board - solid Para Wood (Rubber Tree). Simple and harmonious construction The corners of the Raku Platform Bed are joined together by means of an ingenious slot-locking system that is simple, sturdy, and easy to put together and take down. Only 3 bolts are used to assemble this bed. Tatami Mats not included 2" Mattress inset External 59 1/2" W x 80 1/2" L x 9 H Internal 54" W x 75" L