On its customer Web site, the Union Pacific Railroad characterizes a gondola as an extremely sturdy open design for carrying rugged unfinished commodities; its large flat interior design with side walls is described as more flexible than a flat car. These qualities make the modern gondola particularly popular with the steel industry, for transportation of loose materials like scrap metal, waste, coke, and slag as well as finished products like iron or steel plate, pipe, structural steel, and rails for railroad track. Other commodities commonly shipped in these versatile cars include mineral ores, granite slabs, gravel, logs, lumber, railroad ties, large crates, and even prefabricated railroad track, also known as "panel track."
The name for these cars actually predates railroads. In the early 1800s, utilitarian flat-bottomed boats with low sides, used to transport coal down the Potomac River to the Washington D.C. area, were called gondolas as a spoof on the much fancier Venetian gondolas. Similarly shaped coal-carrying cars on early railroads earned the same moniker. As more specialized cars were invented for coal service, the gondola evolved into the general-purpose car it is today.
