Carpentry. An upright post in the center of a roof-truss, extending from the ridge to the tie-beam.
1776. G. Semple, Building in Water, 115. The King-post, h. may be the same.
1817. B. Hall, Voy. Loo Choo (1820), 54. The roof was well constructed, the rafters being mortised into the ends of the horizontal beams, and braced to the middle by a perpendicular beam or king-post.
1891. A. White, Tries at Truth, iii. 15. In building a porch, the king-post is the beam on which the whole structure rests.
b. attrib., as king-post roof, truss.
1845. Ecclesiologist, I. 149. Tie-beams, which sustain a low king-post roof.
1886. E. S. Morse, Japanese Homes, i. 10. He fairly loathes a structure that has no king-post, or at least a queen-post, truss.