If you have been reading the headlines about duties on Canadian softwood lumber, you may be assuming that a log home package crossing the border will arrive with a duty bill attached. It does not — and the reason is classification, not good fortune.
Canadian softwood lumber really is carrying heavy duties right now. In October 2026 the US Department of Commerce published the final results of its seventh administrative review of Canadian softwood lumber, setting a combined anti-dumping and countervailing duty rate of 24.75% for most producers, down from roughly 35.16%. On top of that, the Section 232 action on timber and lumber that took effect on 14 October 2025 adds a further 10%, and that measure carries no CUSMA exemption. Stacked together, ordinary lumber from Canada faces roughly 34.75% in duties. If your project were imported as a stack of sawn softwood, that is the arithmetic you would be working with.
What those measures actually cover
The Section 232 timber action is tied to specific tariff headings: round logs and timber, railway sleepers, and sawn wood. The anti-dumping and countervailing duty orders address softwood lumber products — boards, planks and similar milled goods. Both are written around lumber, not around finished buildings.
A log home package is neither. It enters the United States under HS 9406.10, the subheading for prefabricated buildings of wood. That heading does not appear on the Section 232 timber list, and it is not within the softwood lumber orders. Goods of Canadian origin that qualify under CUSMA enter at the preferential rate. This is the difference between importing a commodity and importing a building, and it is why our packages have continued to reach US sites without duties through the whole tariff period.
Why the classification holds — and where it can fail
Heading 9406 covers buildings finished in the factory, or supplied as elements to be assembled on site. Customs has long held that a kit of nothing but cut lumber and sheathing is still lumber, classified as its component materials rather than as a building. So the line is drawn by what is in the crate and how it is presented, not by what the project is called.
What puts a Canadian Pride package on the 9406 side of that line is what we have always shipped: logs individually cut, profiled and dovetailed to a specific structure, numbered to a plan, joined as a system rather than a pile of stock. A dovetail log wall cannot be bought off a shelf and cannot be built from commodity lumber. If you are comparing suppliers, this is a question worth asking directly, because the duty outcome follows the answer.
Documentation that keeps a shipment clean
The paperwork has to describe the building, not the wood. In practice that means a commercial invoice stating HS 9406.10 and the country of origin, a CUSMA origin certification, a packing list that itemises the components of the package, and a bill of materials showing the profiling and pre-cutting that make the logs part of a specific structure. Where a package mixes a completed log structure with loose trim or decking, list them separately — a mixed crate invites the broker to treat the whole shipment as its simplest component.
If the value at stake is large, a binding classification ruling from US Customs before shipment settles the question permanently for that design. It is inexpensive relative to the duty at risk, and it is worth having on file.
Why the material matters more than the tariff
Tariff treatment protects the delivered price, but it says nothing about what the wall is made of in year twenty. Western Red Cedar grown in British Columbia is the species we specify when decay resistance is the priority: it is naturally resistant to rot and insect attack, it holds its shape through wet winters and dry summers, and it takes a finish well. That is the reason cedar log walls outlast cheaper alternatives in the same climate, and it is why the BC coastal forests remain the reference source for the timber used in serious log construction.
Douglas fir and white pine each have their place — fir where structural strength and long spans matter, pine where cost and workability drive the choice — but for exposed log work in a wet climate, cedar is the specification that ages well.
What this means for your project budget
You can plan a Canadian log or timber home for the United States without building a duty allowance into the number. You should not assume that is automatic for every supplier. Ask how the package is classified, ask what the invoice will say, and ask whether the components are pre-cut to a specific structure or supplied as loose material. The answers determine whether the softwood lumber duties apply, and they are checkable before anyone starts felling.
For thirty-five years we have built and shipped log homes from Canada, and we continue to deliver packages into the United States under 9406.10 with our clients' landed cost intact. If you want the classification and documentation approach for your own design set out in writing before you commit, we will walk a project through the full picture — species, engineering and border treatment — from first plan to delivery.