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OSFM listing 8140-2126:0100 covers specified Advantage Plus treated Radiata pine siding profiles, with separate tongue-and-groove size and pattern groups.
The September 2025 OSFM table for 8140-2126:0100 does more than name the timber treatment. Its 5/8-inch tongue-and-groove row gives nominal 5/8-by-6 and 5/8-by-8 sizes, with patterns 205 and 206. The 1-inch T&G and T&G EE row instead groups nominal 1-by-6 and 1-by-8 sizes with patterns 633, 634, 632EE, 633EE and 634EE. A tongue-and-groove description alone leaves thickness, size and pattern group unresolved.
The groove labels also matter. The table separates 1-inch T&G with a 3/32-inch V/V2S profile from 1-inch T&G with a 1/4-inch V. Both rows give nominal 1-by-6, 1-by-8 and 1-by-10 sizes, while the latter lists patterns 711, 712 and 713. Shared nominal sizes do not make the groove profiles interchangeable.
SFM 12-7A-1 is the test protocol printed for this siding listing. Match the product's profile and nominal size to its pattern group, then confirm the exact current listing and installation requirements. The table identifies siding products; it does not state a backing-free wall assembly or supply fastening instructions.
Documented attributes
Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.