floor joist

1. 1.

   joist that supports a floor

   Broaderjoist

Questions about floor joist

What does floor joist mean?

floor joist means "joist that supports a floor".

Is floor joist a common word?

floor joist is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.