In
architecture,
post and lintel (also called
prop and lintel or a
trabeated system) is system with a
lintel,
header, or
architrave as the horizontal member over a building void supported at its ends by two vertical
columns, , or . A "fundamental principle" of Ancient Greek architecture, builders continue to use this method to support the weight of the structure above the openings for
windows and
doors in a
bearing wall.