United States / Build / Benchmark Oak thermally modified wood decking with square edge

Benchmark Oak thermally modified wood decking with square edge

Name: Benchmark Oak thermally modified wood decking with square edge
Brand: Thermory USA LLC

This is a listed decking assembly. Listing 8110-2135:0503. This site cites OSFM BML. Match the model and orientation.

Kind: listed-assembly. Brand: Thermory USA LLC. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-26. JSON (CC BY 4.0)

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Benchmark Oak thermally modified wood decking with square edge is listed by CAL FIRE OSFM for wildfire-area use.

CAL FIRE’s Office of the State Fire Marshal lists it as 8110-2135:0503 in category 8110 for wildland-urban-interface decking. The live listing showed active status on August 25, 2026, and an expiration date of June 30, 2027. It covers wood decking nominally 5/4 by 6 inches, measuring 1 by 5-1/8 inches actual, or wider.

The listing covers a specified assembly: the boards are installed on nominal 2-by-6-inch Douglas fir joists with no more than 1/4 inch of edge-to-edge spacing. The manufacturer’s installation instructions and product data sheets also apply. Because the listing description does not name a test protocol, confirm the test standard and exact model on GOVmotus before specifying the decking.

Documents for this product

Each link opens the publisher's own copy, so you read the revision they are shipping today.

Listing records

CAL FIRE OSFM Building Materials Listing — live listing record — CAL FIRE OSFM · HTML
Read from this repository's 2026-08-25 GOVmotus snapshot (data/bml-listings.json, 2,865 rows).

Documented attributes

Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.

Attribute	Value	Evidence source
Form
Assembly role	deck surface	CAL FIRE OSFM Building Materials Listing — 8110-2135:0503 (official-listing · Listing 8110-2135:0503, Description field)Benchmark Oak thermally modified wood decking with square edge, nominal 5/4" x 6" (1" x 5-1/8" actual) or wider.
Material
Material	wood	CAL FIRE OSFM Building Materials Listing — 8110-2135:0503 (official-listing · Listing 8110-2135:0503, Description field)

Where this product goes

FA Exhibit DEC-100. The deck edge region, named

Program	ID / source	Evidence date	Expires	Status
CAL FIRE BML	8110-2135:0503 · Search BML for 8110-2135:0503	2026-08-25	2027-06-30	listed

Tests and programs cited

OSFM BML · listing-program

Specification notes

The live BML record names no test protocol in its description; confirm the test standard and exact models on GOVmotus before specification.

Can I use this here

Local force

The rule and every matching product for the United States

Requirement constraints (13)

Each table compares this product's documented attributes with one published requirement. The comparison does not change from place to place, so it is printed once.

ORSC R327 noncombustible deck surface undocumented
Field	Required	Documented value	State
Assembly role	Assembly role = deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

Austin Zone A noncombustible appendage undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

Austin Zone B 30-foot appendage undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

Austin Zone C 10-foot appendage undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

IWUIC Class 1–2 noncombustible deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

Colorado CWRC Class A deck surface undocumented
Field	Required	Documented value	State
Assembly role	Assembly role = deck surface	deck surface	matched
Fire rating	Fire rating = class a	Not documented	undocumented

Colorado CWRC noncombustible deck surface undocumented
Field	Required	Documented value	State
Assembly role	Assembly role = deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

2018 IWUIC Class 1–2 noncombustible deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

Kittitas IR1–IR2 noncombustible deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

Kittitas IR1–IR2 one-hour deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Fire resistance	Fire resistance ≥ 60 min	Not documented	undocumented

2021 IWUIC Class 1–2 noncombustible deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

2006 Utah UWUI Class 1–2 noncombustible deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Noncombustible	Noncombustible = Yes	Not documented	undocumented

2006 Utah UWUI Class 1–2 one-hour deck undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of deck structure, deck surface	deck surface	matched
Fire resistance	Fire resistance ≥ 60 min	Not documented	undocumented

Sources

OSFM Building Materials Listing (live database) — CAL FIRE OSFM (listing-body). Accessed 2026-08-23.

Benchmark Oak thermally modified wood decking with square edge. FireApproved. https://fireapproved.com/materials/thermory-usa-llc-benchmark-oak-thermally-modified-wood-decking-with/. Last verified 2026-08-26.