Base crucks have blades rising from ground level to a tie-beam or collar-beam which supports the roof timbers. Full crucks have blades rising from ground level to the apex of the roof, serving as the main members of a roof truss.
Camber - Of a horizontal timber, usually a tie-beam or a collar-beam, in which the centre is higher than the ends.
Campanile - A bell tower or any tower containing a bell, generally attached to a church.
a vertical post extending from a tie-beam or a collar-beam to the apex of a roof, and supporting a ridge-piece.
Knop ...
 See also: Timber, Collar, Church, Purlin, Beam
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