tie beam(redirected from tie piece)
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Related to tie piece: tie clip
A horizontal beam forming the base of a triangular truss for a pitched roof, connecting the two side walls and supporting a pair of principals.
(Building) a horizontal beam that serves to prevent two other structural members from separating, esp one that connects two corresponding rafters in a roof or roof truss
a horizontal timber or the like for connecting two structural members to keep them from spreading apart.