trimmer joist


Also found in: Thesaurus, Medical, Encyclopedia.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.trimmer joist - 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.trimmer joist - 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.
joist - beam used to support floors or roofs
Mentioned in ?