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HSChapter 44
U.S. imports of cross-laminated timber (clt / x-lam) (HS 441882) totaled $1.7M in April 2026, traded with 6 countries.
Importers of Cross-Laminated Timber (CLT / X-Lam) paid $118K in duties in April 2026 — an effective duty rate of 13% on $896K in dutiable value, based on actual customs collections rather than the published tariff schedule. Cross-Laminated Timber (CLT / X-Lam) imports of $1.7M in April 2026 ran 30% below the year-to-date monthly average of $2.5M.
Last updated: April 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.
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.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $831K | $230K | -$601K |
| AUSTRIA | $887K | -- | -$887K |
| ITALY | $7K | -- | -$7K |
| ANDORRA | $2K | -- | -$2K |
| UNITED KINGDOM | -- | -- | -- |
Monthly import values over time
Supplier Network
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 4418820000 | CROSS-LAMINATED TIMBER (CLT OR X-LAM) | $1.7M | 13.20% | $118K |
CROSS-LAMINATED TIMBER (CLT OR X-LAM)
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4418820000 | CROSS-LAMINATED TIMBER (CLT OR X-LAM) | $230K |
CROSS-LAMINATED TIMBER (CLT OR X-LAM)
90.2K kg
MIX SPF WOOD SAWN/CHIP LENGTHW,SLICED/PEEL,GT 6MM
HS 440713
OTHER ARTICLES OF WOOD, NESOI
HS 442199
ORIENTED STRAND BOARD (OSB), OF WOOD
HS 441012
PLYWD/ETC,NES,GT-1 OUT PLY NONCNF SPECES IN SUBHD
HS 441233
BUILDERS' JOINERY AND CARPENTRY OF WOOD, NESOI
HS 441899
OTHER CONIF WOOD, SAWN/CHIPED LENTGW, THKNS GT 6MM
HS 440719
| State | Imports | Exports | Balance |
|---|---|---|---|
| New York | $1.3M | -- | -$1.3M |
| Michigan | $232K | -- | -$232K |
| Washington | -- | $230K | +$230K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEWARK, NJ | $555K | -- | -$555K |
| BUFFALO-NIAGARA FALLS, NY | $367K | -- | -$367K |
| DETROIT, MI | $355K | -- | -$355K |