释义 |
Trimming joist
(Arch.) | a joist into which timber trimmers are framed; a header. See Header.- Knight. |
See also: Trimming trimming joist
trimming joist1. A joist supporting one end of a header at the edge of an opening in a floor or roof frame, parallel to the other common joists. See also: Joist2. A joist supporting one end of a header at the edge of an opening in a floor or roof frame, parallel to the other common joists.trimming joist trimmer A joist, supporting a trimmer, of larger cross section but of the same length as, and parallel to, the common joists. |