 In Westphalia, in addition to the usual timber-framed buildings, there are also hall farmhouses (mostly of the four-post type, see below) whose external walls are made of brick.The two main forms of construction are the "Zweiständerhaus" (two-post farmhouse) and the "Vierständerhaus" (four-post farmhouse).The "Dreiständerhaus" (three-post farmhouse) is a transitional design.