Of course, you can, generally speaking, 40 chassis can be used to transport 2*20ft containers as well as a 40ft container, 2*20ft containers are fixed by the locking device, also very solid. We need to pay attention to the weight when transporting, if the weight of 20ft container is more than 36,000 lbs or 40ft container is more than 44,000 lbs, three axle chassis is more suitable for us.