... packing volume 2. Loading per shelf: 500-2500kgs 3. OEM & ODM information : 3-layer heavy-duty warehouse metal storage shelf modelIGO-033sizeH1800*W1800 ... ), Usually bearing loads between 300-800 kg/layer;2), The height of each layer can be adjusted by pitch 50mm freely ... ;3), Consist of column, beam, horizontal brace, diagonal brace ...