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Verify Rough Opening Dimensions — Measure Opening Width

Beginner2 hours

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How to Measure an Attic Ladder Rough Opening · Step 2 of 4

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After opening the attic access, the host uses a tape measure to verify the rough opening width. The ladder requires a 22.5-inch width, and the measurement confirms the existing opening between the ceiling joists is approximately 22.5 inches. He also confirms the joists run in the correct direction to allow for the ladder's installation without cutting structural trusses.

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