This record confirms inclusion in the September 2, 2025 handbook. The current GOVmotus listing status, issue date and expiration are not asserted from this source.
California OSFM · WUI handbook listing
8140-2339:0501
Royal Building Products
The official 2025 OSFM WUI Products Handbook includes this listing under category 8140, Exterior Wall Siding and Sheathing. Open the exact source page before relying on the entry.
- Listee
- Royal Building Products
- Source category
- 8140 · Exterior Wall Siding and Sheathing
- Source state
- Included in 2025 handbookCurrent live status not asserted
- Test protocol
- SFM 12-7A-1PDF page 51
- Rating
- Not stated in this handbook entryPDF page 51
- Publication tier
- Verified metadataNot presented as a complete live BML report
Source-backed record content
Design description
Model D4STD Market Square Double 4" Vinyl with PVC Capstock Siding. Installed on nominal 2" x 4" studs, 16" O.C., 5/8" Type X gypsum sheathing, and Tyvek house wrap stapled to the gypsum sheathing. Siding were attached using 1-1/2" galvani…
Read the full official entryThe excerpt is intentionally short. Installation conditions, product instructions, tests, dimensions and limitations must be verified in the complete official record and manufacturer documents.
Sources & verification
Official OSFM handbook
- Issuing program
- CAL FIRE Office of the State Fire Marshal, Building Materials Listing Program
- Edition
- September 2, 2025
- Last checked
- Aug 31, 2026, 10:07 PM UTC
- Evidence locator
- PDF index 50; displayed page 51
- Document hash
a6aad61d6535b368279fcaea39a913ebe8ab72b4b51ee07a1da6ce7af1c27c29- Storage policy
- Link only; Approval Index does not serve a PDF copy
Independent research context
Approval Index is independent and is not affiliated with, endorsed by, or operated by CAL FIRE, OSFM, the State of California, or the local authority having jurisdiction. Handbook inclusion does not determine suitability, code compliance, installation acceptance or permit approval for a project. Verify the current official listing, full documents, adopted code and project-specific requirements with the AHJ and qualified professionals.
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