Softwood lumber emerges as the hardest file in the eleventh-hour Canada-US trade talks, as Washington resists relief on duties approaching 45 percent and Canadian mills absorb another season of curtailments
OTTAWA, August 17, 2026
As Canadian and American negotiators worked through the weekend to head off sweeping new 50 percent tariffs set to take effect Tuesday, one of Canada’s oldest and most painful trade wounds has forced its way back to the centre of the table. Softwood lumber, the subject of a dispute that has smouldered for four decades, has become one of the most stubborn sticking points in the negotiations, with sources telling Canadian media that the United States has shown little interest in granting relief on lumber duties and would prefer to shunt the file onto a separate track entirely.
The standoff comes at a moment of acute vulnerability for the Canadian forest sector. Canadian softwood producers currently face a combined burden of close to 45 percent at the US border, the product of longstanding anti-dumping and countervailing duties layered beneath a newer 10 percent national security tariff imposed under Section 232 of the Trade Expansion Act of 1962 in October 2025. Mills across British Columbia, Quebec, Ontario and the Atlantic provinces have responded with production curtailments and outright closures, and industry groups warn that each additional month of full-rate duties pushes more capacity permanently offline.
According to reporting by Global News, softwood lumber featured in the weekend discussions between Canada’s Minister responsible for Canada-US Trade, Dominic LeBlanc, and US Trade Representative Jamieson Greer, as officials met repeatedly ahead of the August 19 deadline for the new tariffs. But sources briefed on the talks told CP24 that the American side is “not interested” in reducing softwood tariffs and duties as part of the current package, and that the Trump administration believes the lumber question should be negotiated separately from the sectoral tariff relief Canada is seeking on steel, aluminum and automobiles.
That position lands hard in Ottawa, where Prime Minister Mark Carney has repeatedly identified softwood as a test of any broader arrangement. A softwood deal is “a top priority” in the trade talks, Carney has said, according to The Globe and Mail. Conservative Leader Pierre Poilievre has gone further, making lumber relief a condition of his party’s support for any agreement. “It is unacceptable for there to be U.S. tariffs on Canadian lumber,” Poilievre said.
Four decades of dispute, five rounds of litigation
The softwood lumber conflict is the longest-running trade dispute between the two countries, dating to the early 1980s. At its core is an American allegation that Canadian provinces, which own most of the country’s forest land, charge stumpage fees below market rates, effectively subsidizing Canadian producers, and that Canadian lumber is dumped into the US market at less than fair value. Canada has consistently denied both claims and has won significant victories before dispute panels under successive trade agreements and at the World Trade Organization, yet the duties have repeatedly returned.
The most recent managed-trade truce, the 2006 Softwood Lumber Agreement, expired in October 2015. Since 2017, US duties have been in place continuously under what is now their fifth major round, with rates adjusted through annual administrative reviews conducted by the US Department of Commerce. Those reviews have produced a slow ratchet: the combined anti-dumping and countervailing rate for most Canadian producers climbed from the mid-teens in the early years to 35.16 percent following the sixth review, completed in 2025.
The seventh administrative review, known as AR7, is the file to watch now. In April 2026, Commerce announced preliminary results that would cut the combined rate by roughly 10 percentage points, to 24.83 percent for most Canadian companies. The department issued post-preliminary findings on June 30, and final results had been expected as early as mid-August, with the possibility of extension into October if the department takes its full statutory time. As of this weekend, the final determination remains pending, adding another layer of uncertainty to an already volatile moment.
Even if the AR7 cut is confirmed, the relief is smaller than it appears. The separate 10 percent Section 232 tariff on wood products, imposed in October 2025 on national security grounds, stacks on top of the trade-remedy duties. As trade analysts at IndexBox noted, a 24.83 percent combined duty rate plus the Section 232 tariff leaves the effective burden for Canadian producers near 35 percent, and under the current 35.16 percent rate the total approaches 45 percent. The US Lumber Coalition, the industry group that petitions for the duties, welcomed the Commerce Department’s seventh review as confirmation of what it calls “continued unfair Canadian softwood lumber subsidies and dumping.”
One paradoxical mercy arrived in July. When President Trump invoked Section 338 of the Tariff Act of 1930 to impose the new 50 percent tariffs on some 20 billion US dollars of Canadian goods, lumber was carved out of the target list. Wood Central, an industry publication, reported that timber and lumber escaped the Section 338 wave precisely because the products were already covered by the Section 232 regime and the trade-remedy orders. For Canadian mills, the exemption spared them a catastrophic escalation, but it also underlined their predicament: lumber is already tariffed so heavily that Washington saw no need to add more.
An industry running out of margin
The cumulative toll on the Canadian industry is visible in the production statistics and the town notice boards of forestry-dependent communities. The Forest Products Association of Canada has said the US trade measures have dealt a further blow to an industry already operating below capacity amid curtailments and closures. British Columbia, whose interior mills have borne the brunt, has seen a wave of permanent shutdowns over the past three years as companies shifted capacity south of the border to duty-free US locations, a migration that itself weakens Canada’s negotiating hand.
In November 2025, Carney announced a package of measures intended to protect and transform the steel and lumber industries, including procurement preferences for Canadian wood in federal projects, financing support and an emphasis on domestic housing demand as an alternative outlet for Canadian fibre. Ottawa has paired these with commitments to accelerate homebuilding, arguing that a construction boom at home can absorb volumes that once went south. Industry executives have welcomed the support while cautioning that no domestic program can quickly replace a US market that has historically taken the large majority of Canadian softwood exports.
Market conditions are compounding the policy pain. Lumber futures fell below 580 US dollars per thousand board feet in mid-August, drifting toward a three-month low, as weak US housing demand and persistent trade uncertainty weighed on prices. Falling prices squeeze Canadian producers from both directions: they reduce revenue per board foot while the duties, calculated as a percentage, continue to claim their share. A provincial forestry minister expressed disappointment at the trajectory of US policy, arguing the duties harm both economies by raising construction costs in the United States while accelerating job losses in Canadian forestry regions already stressed by wildfires and insect outbreaks.
That American cost argument has allies south of the border. The National Association of Home Builders has long opposed the duties, noting that they inflate the cost of new American homes at a moment when housing affordability is a first-order political issue in the United States. The association had projected that Canadian lumber duties would decline this summer as a result of the AR7 review, and it has urged the administration to pursue a durable agreement with Canada. So far, that constituency has not moved the White House, which has prioritized the interests of US lumber producers and framed import dependence in national security terms.
Why lumber is different
The current negotiations illustrate why softwood lumber has resisted resolution for forty years while other disputes have come and gone. The duties are not a presidential tariff that can be lifted with a signature; they are trade-remedy orders rooted in petitions from the US industry, sustained by quasi-judicial determinations at the Commerce Department and the US International Trade Commission. Unwinding them typically requires either litigation, which Canada has pursued through CUSMA dispute panels with some success but glacial speed, or a negotiated managed-trade agreement of the kind that expired in 2015, which would likely involve quotas or export taxes that many Canadian producers find unpalatable.
That structural reality explains the American position that lumber should be handled separately from the current tariff standoff. It also explains Canadian frustration. From Ottawa’s perspective, the United States is demanding immediate, concrete Canadian concessions, on liquor access, on dairy, on autos, while offering nothing on the file that matters most to communities from Prince George to Saguenay. Sources told CBC News that Canadian negotiators fear the new tariffs will be imposed on schedule as both Washington and Canadian provinces dig in on their respective demands, with sectoral relief on lumber, autos and steel among the outstanding items.
The politics inside Canada are unforgiving. British Columbia’s government has pressed Ottawa to make lumber a non-negotiable priority, and the federal Conservatives have staked out a position that any deal without lumber relief amounts to capitulation. Carney, who has promised a comprehensive arrangement addressing “all strategic sectors,” now faces the possibility of a deal that delivers partial relief on steel and aluminum while leaving lumber duties intact, an outcome his critics would portray as abandoning the forest sector.
The deposits question
Beneath the headline rates sits a quieter grievance: the money already paid. Since the current duties took effect in 2017, Canadian producers have remitted billions of dollars in cash deposits to US customs authorities, funds that sit in escrow-like limbo while administrative reviews and litigation grind forward. Canadian industry and government officials have long argued that the bulk of those deposits should ultimately be refunded, pointing to the precedent of the 2006 agreement, which returned roughly four billion US dollars of the five billion collected during the previous round of the dispute.
The deposits have become a bargaining chip in their own right. Any negotiated settlement would need to resolve who keeps the accumulated funds, and US industry has historically demanded a share as the price of peace; in 2006, about a billion dollars stayed south of the border, half of it directed to the US industry coalition. Canadian producers regard a repeat of that formula as rewarding the petitioners for a dispute Canada has repeatedly won on the legal merits. For companies weakened by years of duty payments, the prospect of refunds is also a survival question: returned deposits would represent a substantial capital injection for an industry that needs to reinvest in modernized mills to stay competitive.
Litigation continues in parallel. Canada has active challenges under CUSMA’s dispute settlement chapters contesting both the countervailing and anti-dumping determinations, and panels have in past rounds repeatedly found in Canada’s favour, only for the United States to recalculate rates and continue collecting. Ottawa has also raised the Section 232 lumber tariff at the World Trade Organization, though the WTO’s appellate paralysis limits the practical force of that avenue. The legal track record supports Canada’s position; the cash flow supports Washington’s patience.
What it means for the trade
For Canadian exporters, the immediate practical picture is unchanged but precarious. Duty deposit rates remain at the levels set by the sixth administrative review until Commerce publishes the AR7 final results, at which point deposit rates adjust and past entries begin to liquidate at the new rates. Exporters and their US customers should watch for the final determination in the coming weeks, monitor whether Commerce takes the full extension to October, and model cash-flow scenarios at both the current combined rate near 35 percent and the preliminary 24.83 percent figure, in each case adding the 10 percent Section 232 layer.
US buyers, particularly homebuilders and lumber dealers, face their own calculus. Some have accelerated purchases ahead of possible escalation, while others are betting that the AR7 cut and a possible negotiated settlement will lower landed costs by winter. The interaction with the broader August 19 tariff deadline adds a wildcard: if the 50 percent Section 338 tariffs proceed and Canada retaliates, the trading environment for all forest products could deteriorate further regardless of lumber’s formal exemption.
For the communities built around Canadian sawmills, the stakes are not abstract. Every percentage point of duty translates into decisions about shifts, maintenance investments and mill survival. The industry has lived with uncertainty since 2015, but executives describe the current moment, with trade-remedy duties, a national security tariff, a possible continental tariff war and a pending administrative review all in motion at once, as the most complex operating environment in the dispute’s long history.
A sector remaking itself under pressure
The dispute is also accelerating a structural transformation of the North American lumber industry that will outlast any agreement. Over the past decade, and at increasing speed since 2017, the largest Canadian producers have bought and built sawmill capacity in the US South, where timber is privately owned, duties do not apply and labour costs are lower. Companies headquartered in Vancouver now count more American mills than Canadian ones among their assets. The result is a paradox that Canadian policymakers are only beginning to confront: the corporate Canadian lumber industry can prosper even as Canadian lumber production, and the employment that goes with it, shrinks.
That migration shapes the negotiating dynamics in subtle ways. The US industry coalition that petitions for duties now includes substantial Canadian-owned American capacity, blurring the lines of the dispute. And each mill closure in British Columbia or northern Ontario reduces the export volumes over which the two governments are fighting, shrinking the constituency for a deal on the Canadian side even as it deepens the hardship in the communities that remain. British Columbia’s interior, which two decades ago shipped a flood of lumber south, has seen its allowable annual cut reduced by beetle infestation and wildfire, its mill count fall steadily, and its remaining producers operate some of the highest-cost capacity in North America, capacity least able to absorb a 45 percent border charge.
Ottawa’s answer, articulated in the November 2025 industrial package, is to redirect the sector toward domestic demand: mass timber construction, prefabricated housing modules and federal procurement preferences designed to pull Canadian wood into Canadian buildings. Housing policy and trade policy have effectively merged, with the government arguing that its homebuilding acceleration can absorb a meaningful share of displaced export volume. Industry economists are cautious, noting that residential construction cycles are slow, that Canadian consumption is a fraction of US demand, and that mills configured for commodity dimensional lumber cannot pivot overnight to engineered wood products. But few in the sector dispute the direction: less dependence on a US market that has proven, over forty years, to be reliably unreliable.
Reading the week ahead
For those tracking the file professionally, the coming days offer several concrete signposts. The first is whether any deal announced before Tuesday’s deadline mentions lumber at all. Sources briefed on the talks say the American preference is a separate lumber track; if the eventual communique confirms that, the industry will know its relief timeline is measured in quarters, not days. The second is the AR7 final determination from the Commerce Department, expected imminently unless extended to October, which will set duty deposit rates for the year ahead and signal whether the preliminary 10-point cut survives the department’s final calculations. The third is the fate of the 10 percent Section 232 wood tariff, which sits within presidential discretion and could in principle be lifted with a signature as part of any bargain, offering the White House a low-cost gesture that would nonetheless deliver real relief at the margin.
Exporters should also watch the Canadian federal response if Tuesday passes without an agreement. Ottawa’s November 2025 support measures were designed for a lower-intensity conflict, and forestry associations have already begun pressing for expanded loan guarantees, work-sharing arrangements to hold crews through curtailments, and accelerated approvals for the domestic construction programs meant to absorb displaced volume. Provincial governments, led by British Columbia, are preparing their own asks of Ottawa, including demands that any national deal-making not trade lumber’s interests away for relief in the auto and steel belts of central Canada, a regional tension as old as the dispute itself.
Whether this week’s negotiations produce a breakthrough, a separate lumber track, or nothing at all, the softwood file will outlast the August 19 deadline. It has outlasted every deadline before it. The question for Canadian policy is whether this round of talks finally converts four decades of litigation victories and political promises into stable market access, or whether the industry settles in for a sixth round of duties and another decade of managed decline.