trimmer joist, n.
joist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc.
<noun.artifact>
trimmer trimmer joist
semantic pointers
hypernym
Word
joist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc.
<noun.artifact>
trimmer trimmer joist