LumberFlow
Track the current and historical U.S. duty burden on Canadian softwood lumber. See how AD, CVD, and Section 232 tariffs stack over time. Calculate supplier net price under DDP terms or buyer landed cost under FOB.
Free, ungated market utility. Data sourced from DOC, Global Affairs Canada, and official White House proclamations.
As of 2025-10-14, Canadian softwood lumber entering the United States faces a combined duty burden of 45.16% under the "All Others" category — composed of 20.53% antidumping duty, 14.63% countervailing duty, and 10.00% Section 232 national security tariff. Individual company rates vary significantly based on DOC administrative review results.
| Producer | AD | CVD | Section 232 | Total Rate |
|---|---|---|---|---|
| All Others | 20.53% | 14.63% | 10.00% | 45.16% |
| Canfor | 35.47% | 12.12% | 10.00% | 57.59% |
| West Fraser | 26.47% | 0.00% | 10.00% | 36.47% |
Rates reflect the latest DOC Administrative Review final results plus the 10% Section 232 tariff effective September 2025. Use the net price calculator below to estimate landed cost under DDP or FOB terms.
All Others (Industry Average) — effective as of October 14, 2025
Offsets below-fair-value pricing
Offsets government subsidies
National security tariff
The weighted-average rate applied to Canadian producers not individually examined by the DOC. This is the most commonly referenced rate for the softwood lumber sector.
How AD, CVD, and executive tariffs have stacked over time
Receive weekly market updates including duty rate changes, administrative review milestones, and executive tariff actions.
Free. No spam. Unsubscribe anytime.
Calculate supplier net or buyer landed cost based on shipping terms
Delivered Duty Paid (DDP) — the industry standard. The Canadian seller quotes an all-inclusive price covering lumber, freight, and all U.S. duties. This calculator back-calculates what the supplier actually retains (their FOB mill net) after remitting duties to CBP and paying freight.
Frankfurter (ECB) — 2026-06-19
What the Canadian seller retains after duties and freight
Net to Supplier (USD/MBF)
$251.45
Net to Supplier (CAD/MBF)
C$355.85
Of every $450 DDP dollar, the supplier retains 55.9% ( $251.45) after $113.55 in duties and $85.00 freight.
How we calculate rates and estimate supplier economics
For more on how LumberFlow tracks lumber market dynamics, see our weekly price forecasts and market analysis.
Common questions about Canadian softwood lumber duties and tariff tracking
Have a question not answered here? Contact us or explore our procurement solutions.
The duty calculator shows the math. LumberFlow carries that same freight and tariff context into active RFQs, so buyers can compare delivered economics before awarding a load.
Disclaimer
This page is an informational market utility provided by LumberFlow. It is not legal, customs, tax, or accounting advice. Calculator outputs are estimates intended for pricing judgment and negotiation framing. Under DDP terms, the Canadian seller remits duties as Foreign Importer of Record. Under FOB terms, the U.S. buyer is the Importer of Record. Customs valuation is simplified. Always consult a licensed customs broker or trade attorney for compliance guidance. See Terms of Service.