A few of our exterior wood products achieve ASTM E84 Class A flame spread ratings. Contact [email protected] to request current certification documentation for your specific product and assembly.
Nakamoto Forestry has an ongoing program of third-party testing in collaboration with internationally accredited laboratories to evaluate the performance of our products against key fire safety standards.
Since we are continuously expanding our certifications and since standards and codes often change, please reconfirm status with our Sales team before your project begins.
Please note: Fire compliance in high-risk zones is typically achieved through tested wall assemblies rather than siding alone.
Below is a list of common fire-related standards in North America.
Please review our Siding and the Wildland Urban Interface knowledge article for more in-depth information on compliance, best practices in high-fire zones, and a useful list of resource links.
| Product Family | ASTM E84 Class | CSFM 12-7A-1 (WUI) | Fire-Retardant Option |
|---|---|---|---|
| Suyaki® | Class A/B/C (varies by finish) | Pending | N/A |
| Gendai® | Class A/B (varies by finish) | Pending | Available |
| Pika-Pika® | Class A/B (varies by finish) | Pending | Available |
| Sugi | Class B | Pending | Available |
*Pending / In Progress: Testing completed or underway; documentation or listing finalization pending. Contact Sales for current status.
Does Nakamoto Forestry have products listed for use within Calfire WUI or other Western high fire zones?
When fire retardants are applied to Nakamoto Forestry’s products, do they change the appearance of the wood?
Could you please give me general information on fire code compliance of Nakamoto Forestry products?
Could you please explain fire retardants to me? Find everything you need to know about our products—from FAQs, to finish coating options, to manuals and technical documentation
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Our lumber products are all of Japanese origin and are unaffected by Canadian import duties from the US. All North American orders ship from inventory stored at our US facility within two weeks. Any tariff costs are included in our published pricing and you will not be charged additional taxes (aside from your GST or HST).
All North American orders ship from inventory stored at our US facility within two weeks. Any tariff costs are included in our published pricing and you will not be charged additional taxes (aside from your local and state taxes).
