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principal rafter

noun
1.
a diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest.
Origin of principal rafter
1655-1665
1655-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for principal rafter
Historical Examples
  • Two sketches are shown at the joining of the tie beam and the principal rafter.

    Woodwork Joints William Fairham

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Word Value for principal

15
20
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