The Gothic Revival style imitated the great cathedrals and castles of Europe, which were constructed of stone and brick. However, in the United States, the ready availability of lumber and factory-made architectural trim lead to a distinctly American version of Gothic Revival. Wood-framed Gothic Revival homes became America's dominant style in the mid-1800s. The most common features include a steeply pitched roof, steep cross gables, windows with pointed arches, vertical board and batten siding and a porch. It is also less symmetrical and orderly than its European predecessor.