joist
US /dʒɔɪst/
UK /dʒɔɪst/

1.
trave, travetto
a length of timber or steel supporting part of the structure of a building, typically arranged in parallel series to support a floor or ceiling.
:
•
The floorboards were nailed directly to the wooden joists.
Le assi del pavimento erano inchiodate direttamente alle travi di legno.
•
We need to replace some of the rotten joists in the old house.
Dobbiamo sostituire alcune delle travi marce nella vecchia casa.