Stage truss system is made of aluminum alloy main tube 50* 3/ 4mm, brace 25* 2mm different size the max loading is different , we choose the suitable truss according to your place dimension and the weight u would like to hang aluminum alloy 6082 or 6061T6 the nomal size is below, we can also design the new products for your request 1.1m/ 1.5m/ 2m/ 2.5m/ 3m/ 3.5m/ 4m, layer truss, H truss available 2 .Light exhibition truss 100mm* 100mm/ 150mm* 150mm/ 200mm* 200mm/ 250mm* 250mm 3. 300mm* 300mm/ 350mm* 350mm/ 400mm* 400mm/ 450mm* 450mm/ 500mm* 500mm 4 Heavy duty truss 500mm* 600mm/ 520mm* 760mm/ 600mm* 760mm/ 760mm* 910mm 5.Speaker truss: used for hanging audio or speaker, the materal is aluminium square truss. 6.other special truss available .we can design it for you 7.Circle truss Can be of square, triangular, flat type. Diameter 1m, 2m, 3m, 4m and more.