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U.S. imports of cross-laminated timber (clt / x-lam) (HS 441882) totaled $2.5M in July 2026, traded with 9 countries.
Importers of Cross-Laminated Timber (CLT / X-Lam) paid $109K in duties in July 2026 — an effective duty rate of 13% on $837K in dutiable value, based on actual customs collections rather than the published tariff schedule. Cross-Laminated Timber (CLT / X-Lam) imports of $2.5M in July 2026 ran 14% above the year-to-date monthly average of $2.2M.
Last updated: July 2026 dataCross-laminated timber — large-format structural panels built from softwood boards stacked in alternating perpendicular layers and bonded under pressure — is the fastest-growing product category in mass-timber construction, used for floors, walls, and roofs in mid- and high-rise wood buildings. Austria leads US imports and pioneered the commercial CLT industry, with Canada and Germany also significant suppliers. The single US tariff line (4418820000) covers all CLT regardless of species or panel dimension, and the product is not currently subject to a dedicated trade remedy order, though Canadian softwood species content may implicate softwood lumber scope questions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
100 shipments/mo
CLT used in US construction projects typically must comply with ANSI/APA PRG 320, the standard for performance-rated cross-laminated timber, which governs species, adhesive, and structural performance requirements. While compliance with PRG 320 is a market requirement rather than a customs admissibility condition, buyers and specifiers routinely require third-party certification (such as APA or equivalent) as a condition of purchase. Importers should confirm that foreign manufacturers hold current certification before contracting.
The scope of US softwood lumber AD/CVD orders is defined by species and product form. CLT panels made from covered Canadian softwood species could potentially be argued within scope, though CLT has not historically been a primary focus of those proceedings. Importers of Canadian CLT should seek a formal scope ruling from the Department of Commerce or consult a licensed customs broker to assess current exposure before importation.
HSChapter 44
Subheading 10 of 18 in heading 4418
Subheading 441882 · $2.5M of $248.1M
Supplier Network
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4418820000 | Cross-Laminated Timber (Clt or X-Lam) | $2.5M | 4.40% | 33.85% | $109K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4418820000 | Cross-Laminated Timber (Clt or X-Lam) | $280K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$2.5MYoY · Pro
Exports
$280KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Canada and Austria together supply 99% of it.
customs district
destination
entry
rate provision · imports
66.2% enters free of duty; the effective duty rate is 4.40%.