different between crossbeam vs interjoist

English

cross +? beam

crossbeam (plural crossbeams)

A horizontal structural beam that runs perpendicular to the primary support beams; a girder.
The workman hung a light from a crossbeam between the main joists.
(nautical) A beam laid across the bitts, to which the cable is fastened when riding at anchor.

inter- +? joist

interjoist (plural interjoists)

(carpentry) The space or interval between two joists.
(Can we find and add a quotation of Gwilt to this entry?)
(carpentry) A middle joist or crossbeam.
(Can we find and add a quotation of De Colange to this entry?)

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