Trimmer Joist

nounverified·updated May 18, 2026

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.

Framework senses

1 sense across 1 framework

Wordset Dictionary1 senseview framework →

§1: 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.