jaspector
§ Chapter 3 IRC 2024

Building Planning

10 entries from Chapter 3 of IRC 2024, 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.

IRC 2024 Townhouse Fire Separation: 1-Hour Assemblies and Party Wall Rules
R302
What fire separation is required between IRC 2024 townhouse units?
→
IRC 2024 Natural Light and Ventilation: Window Area Rules for Habitable Rooms
R303
How much window area does IRC 2024 require in habitable rooms?
→
IRC 2024 Bathroom Exhaust: 50 CFM Intermittent or 20 CFM Continuous Required
R303.3
Does IRC 2024 require a bathroom exhaust fan?
→
IRC 2024 Habitable Room Size: Minimum 70 Square Feet and 7-Foot Dimension
R304
What is the minimum room size for a habitable room under IRC 2024?
→
IRC 2024 Ceiling Height: 7-Foot Minimum for Habitable Rooms and Basements
R305
What is the minimum ceiling height under IRC 2024?
→
IRC 2024 Egress Window: Minimum Size and Window Well Rules for Basements
R310
What size egress window does IRC 2024 require for basement bedrooms?
→
IRC 2024 Stairway Dimensions: Rise, Run, Width, and Handrail Rules
R311.7
What are the stair dimension requirements under IRC 2024?
→
IRC 2024 Guards: 36-Inch Minimum Height and 4-Inch Baluster Spacing Rules
R312
What are the guard (guardrail) requirements under IRC 2024?
→
IRC 2024 Requires 10-Year Sealed-Battery Smoke Alarms and Wireless Interconnection
R314
What are the smoke alarm requirements under IRC 2024?
→
IRC 2024 Expands Carbon Monoxide Alarm Locations to All New Homes
R315
Where are carbon monoxide alarms required under IRC 2024?
→
§ 02   Chapter navigation