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Apprentice Q&A · #090

How do I identify a fire-rated wall on the architectural drawings?

2nd YearBlueprint ReadingRED · Stop / Verify

Look at the Wall Legend Sheet or the architectural life safety plans. Fire-rated walls are indicated using specific, distinct hatch patterns running through the wall centers (such as thick solid lines, alternating dashes with double dots, or tags labeled *1-HR / 2-HR FRW*).

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Plain-English answer

Look at the Wall Legend Sheet or the architectural life safety plans. Fire-rated walls are indicated using specific, distinct hatch patterns running through the wall centers (such as thick solid lines, alternating dashes with double dots, or tags labeled *1-HR / 2-HR FRW*).

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Field checklist

Ask Foreman

Hey boss, I’m on blueprint reading and need verification before I touch this: How do I identify a fire-rated wall on the architectural drawings? Do you want me to stop here and check the approved detail, submittal, or inspector/manufacturer requirement first?

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Verify before acting

Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

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