KAYU-Golden™ Bangkirai (Yellow Balau) Hardwood Fences & Gates
KAYU® Yellow Balau, marketed by KAYU International as KAYU-Golden™ Bangkirai, carries an independently verified Class A Flame Spread rating on the OSFM Building Materials Listing.
Naming: stated exactly
KAYU® Yellow Balau, marketed by KAYU International as KAYU-Golden™ Bangkirai, carries OSFM Building Materials Listing No. 8110-2069:0002 (Class A Flame Spread, Decking for W.U.I.). The listing itself says "Yellow Balau"; we never call this listing "Golden Bangkirai" on its own without that attribution.
Certification: quoted exactly from the OSFM listing
OSFM Building Materials Listing No. 8110-2069:0002; Listee KAYU INTERNATIONAL INC.
"KAYU® Yellow Balau solid wood decking boards, square edge. Boards are nominally 1" thick x 6" wide with edge-to-edge gap space of 3/16"."
Class A Flame Spread; Category 8110, Decking (W.U.I.)
Test Protocol SFM 12-7A-4A and ASTM E84, Date Issued 05/31/2026, Listing Expires 06/30/2027
Profile scope limit: The listing covers a specific board profile; nominal 1"×6", square edge, 3/16" gap. We do not imply every Bangkirai profile is covered by it.
Approval condition (from the listing): Decking use requires the attached exterior wall covering to comply with CBC §707A.
OSFM disclaimer: A Building Materials Listing "is not an endorsement or recommendation." We never characterize this listing as OSFM endorsing the product.
How we apply this to fencing; stated plainly:
No California Building Materials Listing category exists for fencing; the OSFM program lists WUI products in categories like decking, windows, siding, doors, vents, and ignition-resistant materials. Firewise applies KAYU® Yellow Balau's listed/tested fire-resistance characteristics to fence and gate assemblies based on comparable exposure conditions to listed WUI applications, and we say so plainly rather than implying a fence-specific approval that doesn't exist.
Class A ≠ non-combustible: We do not use "Class A" and "non-combustible" interchangeably anywhere on this page. Class A refers to flame-spread performance in standard tests; non-combustible is a material property. They are different classifications.
Verification dated July 26, 2026. The listing expires June 30, 2027; flag for re-verification before then.
Offered profiles, finish/maintenance guidance, lead times, and product photos: [COMING SOON]
How delivery works
A package means assessment, material specification, and coordination through our network of local licensed contractors, who hold the contract and perform the work. Installation performance is always attributed to the local licensed contractor from our network who holds the contract and performs the work.
Next steps:
Request an estimate or contact us to discuss your parcel.
Product information on this page reflects our understanding as of July 26, 2026; the OSFM listing expires June 30, 2027; flag for re-verification before then. Specs and warranty terms may change. Verify current specs with KAYU or Firewise Fences before ordering.