easy assembly metal bunk bed packing manner(KD structure): 1.Outer packing:packed in five layers kraft paper standard export carton. 2.Inner packing:bubble bags,PE foam. 3.Nylon cable ties on each carton to make them steady. easy assembly metal bunk bed packing size and weight: (one bed use two cartons,weight include carton.) Carton 1: L1800mm*W530mm*H150mm Weight:27.5KG Carton 2: L2030mm*W900mm*H85mm Weight:43.5KG Loading ability:52 sets/20'GP ,104 sets/40'HQ.