Joist

1.

(one of the parallel beams, extending from wall to wall, supporting a floor or ceiling) floor joist រនូត, ធ្និម, រូត ceiling joist បង្កង់ (ផ្ទោងផ្លាន)

1.

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.

1.

(TRANSITIVE) To fit or furnish with joists.