2114 Dry-Stack Masonry — 2025 California Building Code
California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Building Code (Title 24, Part 2) § 2114 · Effective January 1, 2026 · Official source: Building Standards Commission
2114.1 General.¶
The design of dry-stack masonry structures shall comply with the requirements of Chapters 1 through 8 of TMS 402 except as modified by Sections 2114.2 through 2114.5.
2114.2 Limitations.¶
Dry-stack masonry shall be prohibited in Risk Category IV structures.
2114.3 Materials.¶
Concrete masonry units complying with ASTM C90 shall be used.
2114.4 Strength.¶
Dry-stack masonry shall be of adequate strength and proportions to support all superimposed loads without exceeding the allowable stresses listed in Table 2114.4. Allowable stresses not specified in Table 2114.4 shall comply with the requirements of Chapter 8 of TMS 402.
TABLE 2114.4—GROSS CROSS-SECTIONAL AREA ALLOWABLE STRESS FOR DRY-STACK MASONRY
| DESCRIPTION | MAXIMUM ALLOWABLE STRESS (psi) |
|---|---|
| Compression | 45 |
| Flexural tension Horizontal span Vertical span |
30 18 |
| Shear | 10 |
| For SI: 1 pound per square inch = 0.006895 MPa. |
2114.5 Construction.¶
Construction of dry-stack masonry shall comply with ASTM C946.
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