3 Axles fence cargo trailer , the fence and side wall height can be adjust , and we can according to your requst to design the fence height , If you transport bulk caego our Standard Specifications is enough for you ,If you transport cattle and livestock we need to increase the height for you ,and we can according to your order Amount to choose the best shipping way for you , and we can save the sea freight for you as well .If you carry heavy tonnage we can recommend 4 Axles for you , 4 Axles can transport 80-100 tons no problem .