SC Non-Structural Renovation Practice Questions - South Carolina Non-Structural Renovation Contractor Examination Exam

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When framing a rough opening for a prehung 3-foot 0-inch by 6-foot 8-inch interior door, what is the typical rough-opening allowance used by carpenters?

Exactly the slab size, with no extra width or height About 2 inches wider and 2 to 2-1/2 inches taller than the door unit to allow shimming and a header 6 inches wider and 6 inches taller than the door The same as the finished casing dimensions

Correct Answer:

About 2 inches wider and 2 to 2-1/2 inches taller than the door unit to allow shimming and a header

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