Carpentry. An upright post in the center of a roof-truss, extending from the ridge to the tie-beam.

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1776.  G. Semple, Building in Water, 115. The King-post, h. may be the same.

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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.

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1891.  A. White, Tries at Truth, iii. 15. In building a porch, the king-post is the beam on which the whole structure rests.

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  b.  attrib., as king-post roof, truss.

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1845.  Ecclesiologist, I. 149. Tie-beams, which sustain a low king-post roof.

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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.

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