jack rafter

noun

Definition of jack rafter

: a short rafter:
a : one of the shorter rafters used in a hip or valley roof
b : a secondary roof timber (as a common rafter resting on purlins) also : one of the pieces simulating extended rafters under the eaves in some styles of building

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History and Etymology for jack rafter

jack entry 1 (something smaller)

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Cite this Entry

“Jack rafter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jack%20rafter. Accessed 22 Jun. 2021.

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