joist
US /dʒɔɪst/
UK /dʒɔɪst/

1.
solive, poutre
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.
Les planches de plancher étaient clouées directement aux solives en bois.
•
We need to replace some of the rotten joists in the old house.
Nous devons remplacer certaines des solives pourries dans la vieille maison.