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.
   - trimmer

Derived forms: trimmer joists

Type of: joist

• air station
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• air traffic
• abbreviate
• abbreviated
• abbreviation
• abbreviator
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• abbé
• ABC
• ABC's
• abcoulomb
• Abdias
• abdicable
• abdicate
• abdication
• abdicator
• abdomen
• abdominal
• abdominal actinomycosis
• abdominal aorta
• abdominal aortic aneurysm
• abdominal breathing