Show freight car le lse freight cars vary in itt length from sa M to 73 75 feet the average length being about 43 feet outside ove overall over all eli measurements the capacity at SOO doo box cars owned by 25 lesi lesk leading dins ding railroad dyste ans in the united states range ranee from 1167 1 to cu feet the aver nver aize being cubic feet the capacity of the average railway owned freight car in gervice service increased from 39 1 tons tona la in 1914 to mo mor ro than W wa 0 tons torn at pres prea ent |