jack rafters

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Scope note
Rafters that do not extend from the roof plates to the ridgeboards; employed in hip roofs to reach from roof plates to hip rafters. For rafters spanning between valley rafters and ridgeboards, use "valley jacks." Rafters that do not extend from the roof plates to the ridgeboards; employed in hip roofs to reach from roof plates to hip rafters. For rafters spanning between valley rafters and ridgeboards, use "valley jacks."
jack rafters
Accepted term: 13-May-2024