Alum-Line is an American fabricator/manufacturer located in Cresco, Iowa. Alum-Line was formed in 1986 and initially built pickup truck accessories, tack boxes and hog panels. Trailers were added in the late 1980s, and fire/rescue bodies in the 1990s. Today, Alum-Line builds trailers, truck bodies, boxes, dog boxes and trailers, and fire/rescue bodies.