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MAC Metal steel siding and vented soffit profiles

This is a listed siding assembly. Listing 8170-2358:0001. This site cites ASTM E84. Match the model and orientation.

MAC Metal's profile literature documents prepainted steel siding and soffit products. CAL FIRE OSFM listing 8170-2358:0001 covers the named siding and vented-soffit profiles roll formed from prepainted galvanized steel in 24- or 26-gauge configurations.

Kind: listed-assembly. Brand: MAC Metal Architectural Inc.. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-25. JSON (CC BY 4.0)

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Documents for this product

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Spec sheets

  • MAC Metal Data Sheet — HARRYWOOD PLUS, prefinished steel wall profile without visible screws — MAC Metal Architectural · PDF
    Two pages. A specification table and photographs; NO dimensioned section and no orthographic profile drawing anywhere in it. Publishes Height (covered) 6.0625 in (154 mm), Thickness (depth) 0.29 in (7.3 mm), standard length 144 in, gauge 26 or 24, ventilation 4.94 sq in per linear foot for the vented option, and Installation orientation horizontal | vertical | diagonal. Page 2 cites the W.U.I. accreditation as Inscription 8140-2358-0500, where this FA record carries OSFM listing 8170-2358:0001 — two different listings under one manufacturer code, unreconciled.
  • MAC Metal Data Sheet — NORWOOD, prefinished steel wall profile without visible screws — MAC Metal Architectural · PDF
    Same format and the same absence of a section drawing. Height (covered) 5.38 in (136.652 mm), Thickness (width) 0.44 in (11 mm), Installation orientation horizontal | vertical | diagonal.
  • MAC Metal Data Sheet — MS 1, MS 2 and MS AUTHENTIC — MAC Metal Architectural · PDF
    One sheet serving THREE of this record's named profiles. Height (covered) 19.25 in (488.95 mm), Thickness (width) 1.0625 in (27 mm), Installation orientation VERTICAL only. Set against Harrywood Plus at 6.0625 in and Norwood at 5.38 in, the covered height across this record's twenty-four named profiles spans 5.38 to 19.25 in and the orientation spans vertical-only to any — which is why no single covered height, thickness or course rhythm can be read for this record. The blocker is the record's scope, not the sources: MAC Metal publishes a data sheet per profile and none of them carries a drawing.

Documented attributes

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

AttributeValueEvidence source
Material
Material galvanized steel MAC Metal Architectural data sheets (manufacturer)
ProgramID / sourceEvidence dateExpiresStatus
CAL FIRE BML 8170-2358:0001 · Search BML for 8170-2358:0001 2026-08-25 2027-06-30 listed

Tests and programs cited

Models named on the listing

ModelApplication
MS 1 exterior wall siding
MS 1 Modulaire exterior wall siding
MS 2 exterior wall siding
MS Authentique exterior wall siding
MS 3 exterior wall siding
MS 380 exterior wall siding
MS 750 exterior wall siding
MS 750 I exterior wall siding
Harrywood exterior wall siding
Harrywood Block exterior wall siding
Norwood exterior wall siding
Norwood Mini exterior wall siding
Versa exterior wall siding
Metal Block exterior wall siding
Polymac exterior wall siding without foam backing
Harrywood Plus exterior wall siding
Board & Batten exterior wall siding
Reverse Board & Batten exterior wall siding
Harrywood Plus Vented vented soffit
Norwood Vented vented soffit
MS-750 Vented vented soffit
Versa Vented vented soffit
Polymac Vented vented soffit without foam backing

Specification notes

Sources

MAC Metal steel siding and vented soffit profiles. FireApproved. https://fireapproved.com/materials/mac-metal-architectural-inc-steel-siding-or-vented-soffit/. Last verified 2026-08-25.