United States / Build / Solid “Wood” decking, when installed over minimum 2” x 6” solid “Douglas Fir” or better jo (8110-2084:0002)
Solid “Wood” decking, when installed over minimum 2” x 6” solid “Douglas Fir” or better jo (8110-2084:0002)
This is a listed decking assembly. Listing 8110-2084:0002. This site cites ASTM E84. Match the model and orientation.
Solid “Wood” decking, when installed over minimum 2” x 6” solid “Douglas Fir” or better joists, spaced 24” or less on center, and decking and joists complying with American Softwood Lumber Standard PS 20 as follows: Minimum nominal 5/4” thick and nominal 6” wide decking boards with a maximum 3/8” radius edges made of solid wood species “Redwood”, “Western Red Cedar”, “Incense Cedar”, “Port Orford Cedar”, or “Alaska Yellow Cedar” having a Class B Flame Spread rating when tested in accordance with ASTM E84.
Kind: listed-assembly.
Brand: WESTERN WOODS INC.. Listing evidence: OSFM WUI handbook 2026-08-25.
Page reviewed 2026-08-26. JSON (CC BY 4.0)
Read 2026-08-28 from this repository's verified 2026-08-23 pdftotext extraction (docs/research/sources/osfm-wui-handbook-2025-09-02.txt); osfm.fire.ca.gov returns HTTP 403 to automated fetch.
Documented attributes
Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.
Attribute
Value
Evidence source
Material
Material
wood
CAL FIRE OSFM Building Materials Listing — 8110-2084:0002(official-listing · Listing 8110-2084:0002, Description field)Solid "Wood" decking of solid wood species "Redwood", "Western Red Cedar", "Incense Cedar", "Port Orford Cedar", or "Alaska Yellow Cedar".
Solid “Wood” decking, when installed over minimum 2” x 6” solid “Douglas Fir” or better jo (8110-2084:0002). FireApproved. https://fireapproved.com/materials/western-woods-inc-solid-wood-decking-when-installed-over-minimum-2-x-6/. Last verified 2026-08-26.