[f. JOIST sb.1: see -ING1 1 g.] The timber-work of joists supporting a floor or the like; the mass or structure of joists.
1651. Ayr Presbyt. Rec., in Lit. Scott. World, iv. (1894), 43. The flooring and gisting to be directly the height of the place of repentance.
1893. Westm. Gaz., 30 Oct., 4/2. About 12ft. by 12ft. of the flooring and joisting was involved in the flames.
