4418.82.00.00 - Cross-laminated timber (CLT or X-lam)

This classification covers cross-laminated timber (CLT or X-lam), a structural engineered wood product. CLT is manufactured by bonding together successive layers of lumber, with each layer oriented at a 90-degree angle to the previous one. This cross-lamination creates a strong, stable panel suitable for a wide range of structural applications, including walls, floors, and roofs. The panels are typically manufactured to precise dimensions and are often supplied ready for assembly on-site.

It is important to distinguish CLT from its sibling categories. Glue-laminated timber (glulam), classified under 4418.81.00.00, consists of wood laminations stacked parallel to each other and bonded together, resulting in beams and arches. I-beams (4418.83.00.00) are structural members with an I-shaped cross-section, often made from engineered wood like glulam or LVL (laminated veneer lumber), and are used as joists or rafters. This category specifically addresses the unique cross-directional layering that defines CLT.

As a leaf node, 4418.82.00.00 does not have further subcategories. Therefore, classification within this code depends on the confirmation that the product is indeed cross-laminated timber manufactured for structural purposes. Documentation verifying the manufacturing process, material composition, and intended use as a structural building component is essential for accurate classification.