jack timber

noun

Definition of jack timber

: a timber (as a rafter, rib, or studding) that from being intercepted is shorter than the others with which it is used

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History and Etymology for jack timber

jack entry 1 (something smaller)

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Cite this Entry

“Jack timber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jack%20timber. Accessed 3 Jul. 2020.

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