Trainworx 40233-13 N Scale 40' Corrugated Trailer Northern Pacific NP

40-foot trailers are still widely used as inter-rail containers. 40 foot is a good length to fit on a 50 foot TOFC flatcar as they provide some room on both ends for safety and sloppy loading. They generally come with a 96" width and are rated for 55,000 pounds. They were never as popular as 48 foot trailers because of the more limited load size. Even 48 foot trailers gave way to 53' models when the laws governing highway transportation changed.