United States / Build / TruExterior® Beadboard soffit and porch-ceiling panels

TruExterior® Beadboard soffit and porch-ceiling panels: eave assembly section, drawn from this record's sourced dimensions. No dimension is drawn that its source did not publish.
TruExterior® Beadboard soffit and porch-ceiling panels — eave assembly section. Drawn from this record's own sourced values; every dimension on it is one a published document states, and a parameter the source did not publish is named on the drawing rather than estimated. CC BY 4.0.

TruExterior® Beadboard soffit and porch-ceiling panels

This is a listed eave assembly. Listing 8160-2134:0106. This site cites SFM 12-7A-3. Match the model and orientation.

Westlake Royal documents TruExterior Beadboard as 5/8-inch-thick poly-ash paneling for soffits and porch ceilings, in nominal single 4-inch and 6-inch and double 4-inch and 6-inch profiles. CAL FIRE OSFM listing 8160-2134:0106 covers those profiles as horizontal-projection underside material under SFM 12-7A-3.

Kind: listed-assembly. Brand: Westlake Royal Building Products — TruExterior. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-29. JSON (CC BY 4.0)

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Documents for this product

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

Spec sheets

  • TruExterior® Siding & Trim brochure — Beadboard dimension tables (Nominal Size / Actual Thickness (A) / Actual Width (B) / Reveal (C)) and the Reference Guide — Westlake Royal Building Products · PDF
    Twelve pages. The Beadboard pages carry a lettered end section (A thickness, B width, C reveal) with a table for the single profile (5/8 x 4, 5/8 x 6) and one for the double (5/8 x 8, 5/8 x 12). Every one of the four names ACTUAL THICKNESS 5/8 inch, which corroborates the OSFM listing's 0.625 exactly, so there is no conflict on this record. The four ACTUAL WIDTHS (3-15/32, 5-5/16, 6-9/16, 10-1/4) are an OPTION SET and panelWidthIn is a stated-only tier, so no width was written — see the tier gap in the lane log. The stored legacy attributeEvidence brochure URL under /sites/default/files/ was superseded by this canto.com link, which is what the current product page serves; the legacy row was not edited.

Documented attributes

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

AttributeValueEvidence source
Form
Solid surface Yes TruExterior siding, trim, and beadboard brochure (manufacturer)
Dimensions
Thickness 0.625 in TruExterior siding, trim, and beadboard brochure (manufacturer)
Fire
Test standard sfm 12 7a 3 OSFM Building Materials Listing — 8160-2134:0106 (official-listing · Listing 8160-2134:0106, TEST PROTOCOL)TEST PROTOCOL: SFM 12-7A-3

Published requirement matches

These links are generated from the cited attributes above. They do not decide installation or a project result.

ProgramID / sourceEvidence dateExpiresStatus
CAL FIRE BML 8160-2134:0106 · Search BML for 8160-2134:0106 2026-08-25 2027-06-30 listed

Tests and programs cited

Models named on the listing

ModelApplication
TruExterior Beadboard 4-inch 0.625 inch actual thickness; listing width 4 inches
TruExterior Beadboard 6-inch 0.625 inch actual thickness; listing width 6 inches
TruExterior Beadboard double 4-inch 0.625 inch actual thickness; listing names this as a double-4 nominal dimension, not an 8-inch actual width
TruExterior Beadboard double 6-inch 0.625 inch actual thickness; listing names this as a double-6 nominal dimension, not a 12-inch actual width

Specification notes

Sources

TruExterior® Beadboard soffit and porch-ceiling panels. FireApproved. https://fireapproved.com/materials/boral-composites-inc-boral-truexterior-beadboard-0-625-actual-thickness/. Last verified 2026-08-29.