batten door
Two, three or four boards joined vertically on the outside face by two or three battens placed apart and horizontally on the inside face. Photo from Millbrook Village Historic Site, Millbrook, New Jersey, 2021. (Light, 1989)
solid batten door, double diagonal door, ledged door, frontier door, batten door, ledged and baraced door, braced door, Z-pattern door, unframed door