Category:Joist

Joist, n. Etym: [OE. giste, OF. giste, F. gîte, fr. gesir to lie, F. gésir. See Gist.] (Arch.)

Defn: A piece of timber laid horizontally, or nearly so, to which the planks of the floor, or the laths or furring strips of a ceiling, are nailed; -- called, according to its position or use, binding joist, bridging joist, ceiling joist, trimming joist, etc. See Illust. of Double-framed floor, under Double, a.

joist Joist, v. t. [imp. & p. p. Joisted; p. pr. & vb. n. Joisting.]

Defn: To fit or furnish with joists. Johnson.