ceiling-joists

There the ceiling-joists were gracefully festooned with cobwebs, the floor had many a great hole in it, caused by white ant and damp.

An Australian Lassie Lilian Turner

But it was very large indeed, something like thirty yards long and fully twenty yards wide, with two Tuscan columns about ten yards apart in the middle of it, supporting the seven great beams, smoke-blackened till their carving was blurred, on which the ceiling-joists were laid.

Andivius Hedulio Adventures of a Roman Nobleman in the Days of the Empire Edward Lucas White 1900

The floor-joists of one room are the ceiling-joists of the room below. "

Stalky & Co. Rudyard Kipling 1900