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Definitions of joist
  1. noun
    beam used to support floors or roofs
    type of:
Definition that contains joist
  • trimmer 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.
  • floor joist joist that supports a floor
  • 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.
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