Cross-Laminated Timber (CLT) Panels
Mass timber panels made by cross-laminating layers of solid-sawn lumber at right angles with structural adhesives, used for walls, floors, and roofs in mid-rise buildings. HTS 4418.89.00.00 covers these as other engineered structural timber products for their orthogonal lamination strength.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If layers not orthogonally arranged
Parallel-laminated panels resemble plywood over structural CLT.
If designed for doors/windows
CLT sized for fenestration classified as door/window joinery.
If imported as individual boards
Unprocessed lumber boards before lamination go to sawn wood headings.
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Import Tips & Compliance
• Obtain APA or equivalent certification for structural grading to support classification
• Document cross-layer orientation and adhesive type to distinguish from simple plywood
• Check state-specific building code approvals for CLT before marketing
Related Products under HTS 4418.89.00.00
Glulam Beams
Glued laminated timber beams made from layered softwood or hardwood lumber bonded with adhesives, used in structural applications like roof trusses and columns. Classified under HTS 4418.89.00.00 as engineered structural timber products (other) due to the lamination process creating enhanced structural properties beyond simple sawn wood.
Laminated Veneer Lumber (LVL)
Engineered wood product composed of thin wood veneers glued together under heat and pressure, forming strong beams for headers, joists, and rim boards in construction. Falls under HTS 4418.89.00.00 as other engineered structural timber products due to veneer lamination for load-bearing capacity.
Parallel Strand Lumber (PSL)
Engineered lumber made from long wood strands oriented parallel and bonded with waterproof adhesives, used for beams and headers in heavy construction. Classified in HTS 4418.89.00.00 as other engineered structural timber for its strand-based composite structure.
I-Joists (Engineered Wood)
Prefabricated structural beams with wood chord members and OSB webs, designed for floor and roof framing in residential construction. HTS 4418.89.00.00 includes these assembled engineered products as other structural timber elements.
Structural Composite Lumber (SCL)
Generic term encompassing LVL, PSL, and LSL engineered products with wood fibers or strands bonded to form dimensional lumber substitutes for framing. Falls under HTS 4418.89.00.00 as other engineered structural timber products.
Laminated Strand Lumber (LSL)
Engineered wood made from aspen strands laminated into billets then ripped into studs and rim boards for framing. HTS 4418.89.00.00 captures LSL as other engineered structural timber.