Floors

IRC 2024 Bathroom Floor Waterproofing: Wet Area Requirements Under Tile

What waterproofing does IRC 2024 require under shower floors and wet area tile?

R702.4

IRC 2024 Beam and Girder Sizing: Span Tables for Built-Up and LVL Beams

How do I size a floor beam or girder using IRC 2024 span tables?

R502.5

IRC 2024 Cantilevered Floors: Maximum Overhang for Floor Joists

How far can floor joists cantilever beyond a bearing wall under IRC 2024?

R502.3.3

IRC 2024 Crawl Space Floor Insulation: Insulating the Floor vs the Crawl Space Walls

Does IRC 2024 require insulating the floor above a crawl space or the crawl space walls?

N1102.2

IRC 2024 Floor Joist Blocking: When Bridging and Blocking Are Required

When does IRC 2024 require blocking or bridging between floor joists?

R502.7

IRC 2024 Floor Joist Spans: How to Read the Span Tables for Lumber Size

How do I use IRC 2024 span tables to find the right floor joist size and spacing?

R502.3

IRC 2024 Floor Live Load: 40 PSF for Living Areas and 30 PSF for Bedrooms

What floor live load does IRC 2024 require for residential floors?

R301.5

IRC 2024 Floor Sheathing: Minimum Thickness for Subfloor Over Joists

What is the minimum subfloor sheathing thickness required by IRC 2024?

R503.2