Canada tariffs add lines for carpet, vinyl flooring and caulk on Oct. 30, 2026

If you sell carpet, vinyl or rubber flooring, caulk, solvent-based acrylic or vinyl paint or thin MDF in the US, the competing Canadian product carries an added 50% duty when it enters the country from 12:01 a.m. Eastern time on Oct. 30, 2026. For MDF, the duty covers two lines of board up to 5 mm thick, one for board that is not mechanically worked or surface covered and one for surface-covered board that is not edge-profiled for construction. A proclamation signed Oct. 23, 2026 adds 100 tariff lines to the Section 338 Canada tariffs, a 50% duty imposed in a dispute over Canada’s motor vehicle tariffs, and removes 22, among them seven lines of hardwood-faced plywood, polypropylene film, plastic bags and two lines of packaging machinery.

Canadian rivals’ US prices on the added products are likely to rise, which gives US makers and distributors an opening with buyers who now source from Canada. Companies that pass Canadian input costs through to customers as a surcharge should check the 22 removed lines and adjust that surcharge before customers ask.

What changed in the Canada tariffs on Oct. 30?

Proclamation 11048 of July 20, 2026 put a 50% duty on a list of Canadian goods in response to Canada’s tariffs on US motor vehicles. The separate Section 338 lists for alcoholic beverages and dairy in CBP’s Aug. 21, 2026, guidance are unchanged. The duties took effect Aug. 22, 2026, and a Sept. 8, 2026, proclamation revised the list once before.

To count the Oct. 23 changes, we converted Annex I to text, counted every row that begins with an eight-digit HTS subheading and split the list at Part B. Part A, the products leaving the duty, has 22 lines, and Part B, the products added, has 100. Both counts match the subheading lists in Annex II, which amends the tariff schedule. We then read each description and grouped the lines.

Change on Oct. 30	Product group	HTS lines
Added	Carpet and other textile floor coverings	29
Added	Knotted or handmade rugs and artificial turf	14
Added	Cocoa powder	13
Added	Paper, paperboard and wood articles	11
Added	Soap, shampoo, lubricants and waxes	6
Added	MDF, hardboard, moldings and bamboo joinery	5
Added	Power tools, valves and instruments	5
Added	Lab reagents and wastes	5
Added	Vinyl, rubber and wood flooring	3
Added	Plastics (PET resin, polyurethane, plastic boat parts)	3
Added	Paint and caulk	2
Added	Window air conditioners and chest freezers	2
Added	Canoes and archery equipment	2
Removed	Hardwood-faced plywood, plies up to 6 mm	7
Removed	Paperboard, cartons, bags and pulp articles	6
Removed	Machinery	5
Removed	Plastic film, bags and containers	3
Removed	Seaweed	1

Table 1. HTS subheadings added to and removed from the 50% Section 338 duty on Canadian goods, effective Oct. 30, 2026. Groups are ours. Building products, by our rule, are lines for goods installed in or applied to buildings, which are carpet and other textile floor coverings, other flooring, wood panels, moldings and joinery, and paint and caulk. Knotted or handmade rugs and artificial turf are not counted as building products. Source: Plant to Pipeline count of the lines in Annex I to the Oct. 23, 2026, proclamation; the counts match the subheading lists in Annex II.

By our count, 39 of the 100 additions are building products. Our rule counts a line when the goods under it are installed in or applied to buildings, which takes in 29 of the 43 carpet and floor covering lines in HTS chapter 57, three other flooring lines, five lines of wood panels, moldings and joinery, and the paint and caulk lines. We left out 14 chapter 57 lines, 12 that we treat as furnishings and two for artificial turf. The 12 are the five lines for knotted carpets and seven lines the annex describes as hand-woven, hand-loomed, hand-hooked or woven but not on a power-driven loom. The 29 chapter 57 lines we count still include area rugs, because the eight-digit codes do not separate them from wall-to-wall carpet. We kept 4411.12.90, which the annex describes as MDF “not for construction,” because in the tariff schedule that wording separates it from MDF edge-profiled for construction, and the line includes standard wood molding.

Who gains a price opening against Canadian product?

In building products, Canadian carpet and rugs, vinyl flooring other than tile, rubber floor mats, multilayer wood flooring panels, solvent-based acrylic and vinyl paints (3208.20.00) and caulking compounds (3214.10.00) carry the duty from Oct. 30.

Annex I adds two of the five eight-digit lines for MDF up to 5 mm thick in the USITC’s listing for heading 4411, one for board that is not mechanically worked or surface covered (4411.12.10) and one for surface-covered board that is not edge-profiled for construction, which includes standard wood molding (4411.12.90). Thin MDF that is tongued, grooved or rabbeted for construction (4411.12.20 and 4411.12.30) and board that is worked but not surface covered (4411.12.60) stay off the list. Annex I also adds one of the four lines for fiberboard denser than 0.8 g/cm3, board that is not mechanically worked or surface covered (4411.92.10), so worked or surface-covered hardboard, including tileboard (4411.92.20 to 4411.92.40), is not covered.

Vinyl tile (3918.10.10), tufted carpet of man-made fibers other than nylon (5703.39.20) and five lines of thicker board have been on the July list since the duties took effect: two for MDF over 5 mm but not over 9 mm thick (4411.13.20 and 4411.13.90) and three for fiberboard over 9 mm thick (4411.14.20, 4411.14.30 and 4411.14.90). With builder confidence and architectural billings both weak going into 2027, dealers with a Canadian line will compare landed costs, so get your quotes to those dealers now.

The seven plywood lines that came off are the lines under subheadings 4412.33 and 4412.34. According to the HTS heading for these panels, they cover plywood made only of sheets of wood, each ply no more than 6 mm thick, with at least one outer ply of a non-tropical hardwood such as birch, maple, oak or walnut. Other panels on the July list stay covered, including blockboard and other laminated panels with a hardwood outer ply (lines under 4412.52 and 4412.92), laminated veneer lumber (4412.41 to 4412.49), plywood with a tropical-wood face (4412.31) and plywood with softwood faces (4412.39).

In plastics and rubber, the additions include PET resin with a viscosity number of 78 ml/g or higher, elastomeric polyurethanes in primary forms and floor coverings and mats of noncellular vulcanized rubber (4016.91.00), so US resin suppliers selling to processors that buy from Canada, and US makers of rubber floor mats, now compete with Canadian product that carries the duty. Polypropylene film (3920.20.00), plastic boxes and crates (3923.10.90) and polyethylene sacks and bags (3923.21.00) came off, so Canadian film and bags compete at normal duty rates again.

In industrial machinery, filling, sealing and labeling machinery (8422.30.91), packing and wrapping machinery (8422.40.91), two refrigeration and thermal processing lines and produce sorting machines came off, so US packaging machine builders lose their duty advantage. Parts of packing and wrapping machinery (8422.90.91) stay on the list. Handheld electric tools other than drills and saws (8467.29.00) and hand-operated iron or steel valves (8481.80.30) were added.

What should distributors carrying Canadian lines tell customers?

The entry date at customs sets the rate, so goods entered for consumption, or withdrawn from a bonded warehouse, from 12:01 a.m. Eastern time on Oct. 30 carry the change, and stock already entered keeps its cost. Tell customers which SKUs are affected and whether open quotes hold, and update storefront and punchout prices on the same day.

Customers will also ask about USMCA and Section 232. On USMCA, our source is the White House fact sheet of Oct. 23, 2026, which says the tariffs “apply to all covered goods regardless of whether a good originates under the U.S.-Mexico-Canada Agreement (USMCA),” so claiming USMCA origin does not avoid them. The proclamation, which does not mention USMCA, says the duties apply on top of Section 232 duties. The July proclamation had exempted goods subject to Section 232, and the Sept. 8 proclamation reversed that.

What to put in a surcharge or price letter for these lines

Our guide to tariff surcharge notices covers how to structure one. In a letter about this change, name the affected products and HTS lines, cite the Oct. 23 proclamation and the Oct. 30 date, and show the duty as a separate surcharge that ends when the line leaves the list. Construction Dive reported on Oct. 27, 2026 (secondary reporting) that a lawsuit filed at the Court of International Trade seeks to end the tariffs and win refunds for importers. If the suit succeeds, a surcharge shown separately can end on the date the duty stops, without a new price list.

What to do now

1. Match your purchase and sales records by HTS subheading against Annex I and confirm classifications with your customs broker, since the annex says its descriptions are for information only. This article is not legal advice.
2. Recalculate landed cost on any added line you import from Canada, and send customers a dated surcharge notice.
3. Give reps and distributors a list of accounts known to buy Canadian product in the added lines where you compete with it.
4. End the surcharge on removed lines for goods entered from Oct. 30 and tell customers the date. Before you end a plywood surcharge, confirm that the goods are classified under 4412.33 or 4412.34, because plywood under other 4412 subheadings is still covered.
5. Watch for CBP filing guidance on this change, as CBP issued for earlier rounds in CSMS messages 69606660 and 69851916. A search for 9903.03.14 on the USITC’s HTS site brings up the heading for these duties, and the list itself is in U.S. note 51(b)(3) in the chapter 99 notes, which on Oct. 29, 2026, did not yet include the Oct. 23 changes.