Joist

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Joist \Joist\ (joist), n. [OE. giste, OF. giste, F. g[^i]te, fr.
     gesir to lie, F. g['e]sir. See {Gist}.] (Arch.)
     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.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Joist \Joist\, v. t. [imp. & p. p. {Joisted}; p. pr. & vb. n.
     {Joisting}.]
     To fit or furnish with joists. --Johnson.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  joist
       n : beam used to support floors or roofs