Section R608 — EXTERIOR CONCRETE WALL CONSTRUCTION — 2025 California Residential Code (Title 24, Part 2.5)

R608.1 General. ¶

R608.1 General. Exterior concrete walls shall be designed and constructed in accordance with the provisions of this section or in accordance with the provisions of PCA 100, ACI 318 or ACI 332. Where PCA 100, ACI 318, ACI 332 or the provisions of this section are used to design concrete walls, project drawings, typical details and specifications shall not exempt construction documents from the requirement to be stamped by a California licensed architect or engineer. Notwithstanding other sections of law, the law establishing these provisions is found in Business and Professions Code Sections…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.1

R608.2 Applicability limits. ¶

R608.2 Applicability limits. The provisions of this section shall apply to the construction of exterior concrete walls for buildings not greater than 60 feet (18 288 mm) in plan dimensions, floors with clear spans not greater than 32 feet (9754 mm) and roofs with clear spans not greater than 40 feet (12 192 mm). Buildings shall not exceed 35 feet (10 668 mm) in mean roof height or two stories in height above grade. Floor/ceiling dead loads shall not exceed 10 pounds per square foot (479 Pa), roof/ceiling dead loads shall not exceed 15 pounds per square foot (718 Pa) and attic live loads shall…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.2

R608.3 Concrete wall systems. ¶

R608.3 Concrete wall systems. Concrete walls constructed in accordance with these provisions shall comply with the shapes and minimum concrete cross-sectional dimensions of Table R608.3. TABLE R608.3—DIMENSIONAL REQUIREMENTS FOR WALLSaCol2Col3Col4Col5Col6Col7 --------------------- WALL TYPE<brAND NOMINAL<brTHICKNESS MAXIMUM<brWALL WEIGHTb <br(psf) MINIMUM<brWIDTH, W, OF<brVERTICAL CORES<br(inches) MINIMUM<brTHICKNESS, T,<brOF VERTICAL<brCORES<br(inches) MAXIMUM<brSPACING OF<brVERTICAL CORES<br(inches) MAXIMUM<brSPACING OF<brHORIZONTAL<brCORES<br(inches) MINIMUM<brWEB

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.3

R608.4 Stay-in-place forms. Stay-in-place concrete forms shall comply with this section. ¶

R608.4 Stay-in-place forms. Stay-in-place concrete forms shall comply with this section. R608.4.1 Surface burning characteristics. The flame spread index and smoke-developed index of forming material, other than foam plastic, left exposed on the interior shall comply with Section R302.9. The surface burning characteristics of foam plastic used in insulating concrete forms shall comply with Section R303.3. R608.4.2 Interior covering. Stay-in-place forms constructed of rigid foam plastic shall be protected on the interior of the building as required by Sections R303.4 and R702.3.4. Where gypsum…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.4

R608.5 Materials. ¶

R608.5 Materials. Materials used in the construction of concrete walls shall comply with this section. R608.5.1 Concrete and materials for concrete. Materials used in concrete, and the concrete itself, shall conform to requirements of this section, PCA 100, ACI 318 or ACI 332. R608.5.1.1 Cements. The following standards as referenced in Chapter 44 shall be permitted to be used: 1. ASTM C150. 2. ASTM C595. 3. ASTM C1157. R608.5.1.2 Concrete mixing and delivery. Mixing and delivery of concrete shall comply with ASTM C94 or ASTM C685. 6-110 2025 CALIFORNIA RESIDENTIAL CODE on Jul 18, 2025 11:14…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.5

R608.6 Above-grade wall requirements. ¶

R608.6 Above-grade wall requirements. FIGURE R608.6(1)—ABOVE-GRADE CONCRETE WALL CONSTRUCTION ONE STORY SEE SECTION R608.9.3 UNSUPPORTED WALL HEIGHT 10 FT MAXIMUM SECTION CUT THROUGH FLAT WALL FOR VERTICAL CORE OF A WAFFLE- OR SCREEN-GRID WALL For SI: 1 foot = 304.8 mm. on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. WALL CONSTRUCTION FIGURE R608.6(2)—ABOVE-GRADE CONCRETE WALL CONSTRUCTION CONCRETE FIRST STORY AND LIGHT-FRAME SECOND STORY SYSTEM SEE SECTION R608.9.2 WALL—STAY-IN-PLACE OR REMOVABLE FORM SEE SECTION R608.9.2 VERTICAL WALL REINFORCEMENT AS REQUIRED FIRST-STORY UNSUPPORTED WALL HEIGHT…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.6

R608.7 Solid walls for resistance to lateral forces. ¶

R608.7 Solid walls for resistance to lateral forces. R608.7.1 Length of solid wall. Each exterior wall line in each story shall have a total length of solid wall required by Section R608.7.1.1. A solid wall is a section of flat, waffle-grid or screen-grid wall, extending the full story height without openings or penetrations, except those permitted by Section R608.7.2. Solid wall segments that contribute to the total length of solid wall shall comply with Section R608.7.2. R608.7.1.1 Length of solid wall for wind. Buildings shall have solid walls in each exterior endwall line (the side of a…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.7

R608.8 Requirements for lintels and reinforcement around openings. ¶

R608.8 Requirements for lintels and reinforcement around openings. on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. WALL CONSTRUCTION FIGURE R608.8(1)—REINFORCEMENT OF OPENINGS CONTINUOUS BAR AS REQUIRED SEE FIGURES R608.8(2), R608.8(3) AND R608.8(4) TOP OF WALL STORY Col1Col2Col3Col4 ------------ AA ≥ 2 FT ELEVATION OF WALL Col1Col2Col3Col4 ------------ VER<brSEETIC<br SE For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 1 1 / IN. 2 MINIMUM 2 / IN. 1 2 MAXIMUM 2 1 2 FIGURE R608.8(2)—LINTEL FOR FLAT WALLS HORIZONTAL TOP LINTEL REINFORCEMENT AS REQUIRED MINIMUM NO. 3 STIRRUP AS REQUIRED “C” STIRRUPS ARE…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.8

R608.9 Requirements for connections—general. ¶

R608.9 Requirements for connections—general. Concrete walls shall be connected to footings, floors, ceilings and roofs in accordance with this section. FIGURE R608.9(1)—WOOD-FRAMED FLOOR TO SIDE OF CONCRETE WALL, FRAMING PERPENDICULAR ~~SHEATHING~~ ~~BOUNDARY NA~~ ILING 10d COMMON NAILS AT 6 IN. ON CENTER FROM SHEATHING TO JOIST WITH TENSION A 3 IN. 3 IN. CLEAR Col1Col2Col3Col4Col5Col6Col7Col8Col9Col10Col11Col12Col13Col14 ------------------------------------------ . IN 5 .

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

Ask AI about § R608.9

R608.10 Floor, roof and ceiling diaphragms. ¶

R608.10 Floor, roof and ceiling diaphragms. Floors and roofs in buildings with exterior walls of concrete shall be designed and constructed as diaphragms. Where gable-end walls occur, ceilings shall be designed and constructed as diaphragms. The design and construction of floors, roofs and ceilings of wood framing or cold-formed-steel framing serving as diaphragms shall comply with the applicable requirements of this code, or AWC WFCM or AISI S230, if applicable. Wood framing members shall be of a species having a specific gravity equal to or greater than 0.42.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district

Ask AI about § R608.10