metal bed Feature and Functions: 1. Material High quality cold roll steel from Panzhihua Iron & Steel Co. 2. Knock down Convenient for shipping. Due to its knock down structure, the packing volume is just reduced to one fifth of the common cabinet, so it helps you save a lot in freight fee and can makes a larger loading. 3. Assemble Patented design, no screws needed on the connections, which enables your installment very easy and fast. Even someone without installing experience and never been trained before, can complete its installing in a short time. 4. Structure Stable and long-lasting, the longer you use it, the steadier it becomes. It is one feature of our products, so it sells quite good. We also welcome customized orders, OEM orders. Patented Bunk Bed (Without Screw) ISO90011. Model No.: .HSY12H+X22. Dimension(MM):2000*900*1720 1940*400*335(cabinet)3. G.W.VOL: 40.9/41.9 0.12964. Packing(MM):2000*180*3605.Cabinet Packing(mm): 730*445*365(6.2/6.7) 0.1186 730*445*365(6.2/6.7) 0.11866.Mattres size: 1935*835*707.Container:165 sets/40HQ 0.367CBM