IBC Design 721.1(2) 13-1.3
1-Hour Fire Rated Noncombustible studs—interior partition with gypsum wallboard each side — 0.055" (No. 16 carbon sheet steel gage) approved nailable metal…
IBC Table 721.1(2), Item 13-1.3 (Noncombustible studs—interior partition with gypsum wallboard each side): 0.055" (No. 16 carbon sheet steel gage) approved nailable metal studs (e) 24" on center with full-length 5/8" Type X gypsum wallboard (e) applied vertically and nailed 7" on center with 6d cement-coated common nails. Approved metal fastener grips used with nails at vertical butt joints along studs. Minimum finished thickness (face-to-face) — 1-hr: 4-7/8". Prescriptive assembly from the adopted building code — thicknesses are code minimums, see table footnotes for conditions.
0.055" (No. 16 carbon sheet steel gage) approved nailable metal studs (e) 24" on center with full-length 5/8" Type X gypsum wallboard (e) applied vertically and nailed 7" on center with 6d cement-coated common nails. Approved metal fastener grips used with nails at vertical butt joints along studs.
The full text is for BuildSpec members
Read the complete section, search across every adopted code, run the calculators and ask Copilot — free for 14 days, no card required.
- Layer-by-layer components with thicknesses
- Cross-section diagram
- Applicable code sections and test standard
- 6 related assemblies