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Residential Wood Framing Construction Quick-Card based on 2021 IRC This 6-page card covers the construction essentials for wood framing based on the new 2021 International Residential Code (IRC). Features: FOOTINGS & FOUNDATIONS Wall, Floor & Roof Framing Footings Reinforced Concrete Footings Permanent Wood Foundation Crawl Space Section Wood Foundations Minimum Width & Thickness for Concrete Footings for Light-Frame Construction (inches) SILL PLATES & FOUNDATION ANCHORAGE Wood Sill Plates Foundation Anchorage Foundation Anchorage in Seismic Design Categories C, D0, D1, & D2 Wall Anchorage for All Buildings in SDC D0, D1, & D2 & Townhouses In SDC C WOOD FLOOR FRAMING Floors - Design & Construction Bearing Joists Under Bearing Partitions Floor Systems Joist Framing WOOD FLOOR FRAMING - JOISTS Sleeping Areas & Attic Joists Other Floor Joists Framing at Braced Wall Lines Blocking & Subflooring Lateral Restraint at Supports Bridging Floor Joist Spans for Common Lumber Species WOOD FLOOR FRAMING - CUTTING, DRILLING & NOTCHING & FASTENING SCHEDULE Cutting, Drilling & Notching Notches in Sawn Lumber Holes in Sawn Lumber Fastening Fastening Schedule FASTENING, FRAMING OF OPENINGS & FLOOR SHEATHING Fastening Framing of Openings End Joints Subfloor and Combined Subfloor Underlayment Min. Thickness of Lumber Floor Sheathing Allowable Spans for Sanded Plywood Combination Subfloor Underlayment Fastening Schedule WALL FRAMING Stud Size, Height & Spacing Top Plate Bearing Studs Bottom (Sole) Plate Single Member Headers Rim Board Headers Headers for Nonbearing Walls Supports for Headers Maximum Spans for Wood Structural Panel Box Headers Size, Height & Spacing of Wood Studs Notching of Wall Studs Drilling of Wall Studs Drilling & Notching of Top Plate ROOF FRAMING Roof Framing Details Framing of Openings Purlins Ceiling Joist & Rafter Connection Ceiling Joists Lapped Bearing Cutting, Drilling, Notching & Bridging Cantilevered Portions of Rafters Rafter/Ceiling Joist Hee