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Bingaman's Ash Americana and Red Oak decking is listed with wood-specific nominal sizes, a maximum gap and an attached-wall condition.
The options in 8110-2308:0500 are thermally modified Ash Americana at nominal 1 by 6 inches or 5/4 by 6 inches, and thermally modified Red Oak at nominal 1 by 6 inches. The thicker ash option is not a size stated for the red oak. Edge-to-edge spacing must be no greater than 3/16 inch.
OSFM records SFM 12-7A-4A and says ASTM E84 was not conducted. The attached exterior wall covering must consist of noncombustible or ignition-resistant material. That requirement belongs with the decking layout when reviewing a deck beside a building; the absent E84 test supplies no separate flame-spread class.
Match the supplied wood and nominal board size before settling the gap. Then carry the attached-wall covering into the construction review using Bingaman's installation instructions and product data sheets. Confirm that exact decking entry in GOVmotus so the ash and red-oak choices retain their own dimensional limits.
Documents for this product
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Thermally modified Ash Americana Decking, material nominal *1" x 6" and 5/4" x 6". FireApproved. https://fireapproved.com/materials/bingaman-son-lumber-inc-thermally-modified-ash-americana-decking/. Last verified 2026-08-23.