principal rafter

noun

Definition of principal rafter

: one of the upper diagonal members of a roof truss supporting the purlins and common rafters or those joints to which the roof boarding is secured

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Cite this Entry

“Principal rafter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/principal%20rafter. Accessed 27 Sep. 2021.

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