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§ Chapter 38 IRC 2021

Wiring Methods

10 entries from Chapter 38 of IRC 2021, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.

ED IRC 2018 ED IRC 2021 ED IRC 2024
§ 01   Sections

All 10 entries.

Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.

NM Cable Can Run Through Framing When It Is Protected and Supported
E3801.2
Can you run Romex through studs without conduit?
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Junction Boxes Must Remain Accessible After the Wall or Ceiling Is Finished
E3802.1
Can I bury a junction box behind drywall?
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Attic Wiring Needs Support and Extra Protection Where It Can Be Stepped On or Stored Against
E3802.2
Does Romex in an attic need to be protected?
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Garage Cable Needs Protection Where It Is Exposed to Physical Damage
E3802.3.2
Does Romex in a garage have to be in conduit?
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Nail Plates Are Required Where Cable Is Too Close to a Framing Edge
E3802.3.2
When do I need nail plates over Romex?
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Crawlspace Cable Must Be Rated for the Location and Protected from Damage
E3802.4
Can Romex be run in a crawlspace?
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Cable Bends Must Not Damage the Sheath or Conductors
E3802.5
How tight can I bend Romex around a corner?
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NM Cable Must Be Secured Within 12 Inches of Boxes and Every 4 1/2 Feet
E3802.6
How often does Romex have to be stapled?
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Raceways Crossing Temperature Zones Need Sealing Against Condensation Movement
E3802.7
Do I need to seal conduit where it goes from inside to outside?
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Underground Wiring Needs the Required Cover and Damage Protection
E3803.1
How deep does underground electrical conduit or cable have to be?
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§ 02   Chapter navigation