Kings Brand Furniture Twin over Twin Wood Bunk Bed with Ladder (White) Solid wood construction, each bunk safely holds 250 lbs. Includes 12 piece wood slats. Designed to be used with twin-sized mattresses. Bedding and mattresses are not included. Features guard rails on the top bunk and an integrated 4-step ladder for safety. Easily converts to two twin beds. Assembly is required, hardware included. Dimensions: 81.25" x 42.5" x 59.75"H