Hem-Fir Cross-Laminated Timber Roof Panels
Structural CLT roof panels from mixed hemlock-fir lumber (Hem-fir), orthogonally laminated for long-span roofing applications. Specifically classified under HTS 4418.82.00.00 for cross-laminated timber products.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sourced as rough Hem-fir lumber from mixed stands
Per chapter notes, Hem-fir sawn wood uses 4407.14 before engineered processing.
If when assembled with included metal connectors as roof trusses
Doors, windows, and frames with metal fittings use 4418.20.
If using medium density fiberboard core layers
Fiberboard-based panels fall under Chapter 44 heading 4411.
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Import Tips & Compliance
• Provide AITC or ICC-ES evaluation reports proving compliance with US structural standards
• Document moisture content (typically <12%) and storage conditions to prevent mold claims
• Separate structural CLT from any architectural cladding to avoid mixed classification
Related Products under HTS 4418.82.00.00
Spruce Cross-Laminated Timber Panels
Cross-laminated timber (CLT) panels made from layered spruce lumber boards, glued orthogonally for enhanced structural strength. Classified under HTS 4418.82.00.00 as engineered structural timber products specifically for cross-laminated timber (CLT or X-lam). Used in walls, floors, and roofs of modern buildings.
Douglas Fir CLT Wall Panels
Pre-cut cross-laminated timber panels from Douglas fir, orthogonally glued for load-bearing walls in multi-story construction. Falls under HTS 4418.82.00.00 as CLT structural products distinguished by cross-layering technique.
Pine Cross-Laminated Timber Floor Panels
CLT flooring panels constructed from cross-laminated southern yellow pine boards, designed for multi-span structural floors. HTS 4418.82.00.00 covers these engineered panels due to their specific cross-lamination manufacturing process.
Western Red Cedar CLT Panels
Cross-laminated timber panels made from premium western red cedar, valued for natural decay resistance in exterior applications. HTS 4418.82.00.00 applies to all CLT regardless of species due to manufacturing process.
SYP Cross-Laminated Timber Shear Walls
Pre-manufactured shear wall panels from cross-laminated Southern Yellow Pine (SYP), engineered for seismic zones. Classified under 4418.82.00.00 as CLT structural products with orthogonal lamination.
Mixed Softwood CLT Elevator Shaft Panels
Cross-laminated timber panels from mixed spruce-pine-fir (S-P-F) for elevator shaft enclosures in tall buildings. HTS 4418.82.00.00 specifically identifies CLT structural panels per nomenclature.