OSB Exposure 1 Sheathing from Japan
OSB panels rated Exposure 1 for temporary weather exposure during construction, with waterproof glue lines. Standard oriented strand construction throughout thickness. Classified HTS 4410.12.00 as construction-grade OSB.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Submit APA test reports proving 6-month exterior exposure performance per industry standards
• Mark panels with Exposure 1 rating visible for customs inspection to validate classification
• Distinguish from Exterior grade by noting temporary vs permanent exposure duration in docs