Other

Bamboo Glulam Beams

Bamboo glulam beams are engineered structural members made by laminating bamboo strips with adhesives. Under Chapter 44 Note 6, references to 'wood' include bamboos, so these beams are classified as glue-laminated timber (glulam) under tariff item 4418.81.00. They are a sustainable alternative for green building projects, offering high strength and dimensional stability.

Curly Maple Glulam Posts

Curly maple glulam posts are decorative structural posts made from laminated curly maple hardwood, combining aesthetic appeal with engineered strength. They are classified under tariff item 4418.81.00 as glue-laminated timber, as the lamination process meets the definition of glulam. These posts are used in exposed interior applications where appearance and load-bearing capacity are required.

Douglas Fir Glulam Beams

Douglas fir glulam beams are structural load-bearing members made from Douglas fir laminations bonded with adhesives. They meet the definition of glue-laminated timber under tariff item 4418.81.00, as they are engineered for construction applications. These beams are widely used in residential and commercial buildings for their strength and reliability.

European Larch Glulam Rafters

European larch glulam rafters are sloped glue-laminated rafters designed for pitched roof systems. They are classified under tariff item 4418.81.00 as glue-laminated timber, offering natural resistance to decay for exterior structural use. These rafters provide durability and aesthetic appeal in roof construction.

Fire-Retardant Glulam Beams

Fire-retardant glulam beams are glue-laminated beams pressure-impregnated with fire-retardant chemicals to enhance building safety. They retain classification under tariff item 4418.81.00 as glulam structural timber, with the treatment not altering their essential character. These beams meet fire code requirements for commercial and residential construction.

GluLam Arched Roof Beams

Glulam arched roof beams are curved glue-laminated beams custom-engineered for arched roof structures. They are classified under tariff item 4418.81.00 as glue-laminated timber, as the layered gluing allows complex shapes. These beams are popular in timber-framed arenas and churches for their aesthetic and structural benefits.

Glulam Bridge Girders

Glulam bridge girders are heavy-duty glue-laminated girders designed for pedestrian and highway bridge superstructures. They are classified under tariff item 4418.81.00 as engineered glulam for structural timber applications. These girders are treated for exterior durability and are used in infrastructure projects.

Hem-Fir Glulam I-Joists

Hem-Fir glulam I-joists are engineered I-shaped joists with Hem-Fir glulam flanges and OSB webs, used for floor and roof framing. They are classified as glulam under tariff item 4418.81.00 due to the glued laminated flange components meeting structural timber criteria. These joists offer high strength-to-weight ratio for residential and commercial construction.

Hybrid Glulam-Steel Beams

Hybrid glulam-steel beams are composite beams combining a glulam core with steel flitch plates for enhanced strength. They are primarily classified under tariff item 4418.81.00 as glulam timber with metal reinforcement, as the wood component gives the essential character. These beams are used in seismic zones requiring hybrid performance.

Laminated Veneer Lumber (LVL) Beams

Laminated veneer lumber (LVL) beams are produced by gluing thin wood veneers parallel to grain, functioning as a high-strength glulam alternative. They are classified under tariff item 4418.81.00 as glue-laminated structural timber when used similarly to glulam. LVL beams are used in various structural applications, offering consistent strength and dimensional stability.

Mass Timber Glulam Columns

Mass timber glulam columns are extra-wide glue-laminated columns for cross-laminated timber (CLT) building systems, supporting multi-story mass timber construction. They are classified under tariff item 4418.81.00 as core glulam structural elements. These columns are revolutionizing sustainable high-rise construction with their strength and fire resistance.

Radiata Pine Glulam Headers

Radiata pine glulam headers are engineered headers from New Zealand Radiata pine laminations for door and window rough openings. They are classified under tariff item 4418.81.00 as structural glued members. These headers are cost-effective for volume residential construction, offering strength and dimensional stability.

Southern Pine Glulam Columns

Southern pine glulam columns are cylindrical glue-laminated columns from southern pine species, engineered for vertical load support in timber frame buildings. They are classified under tariff item 4418.81.00 as glulam due to the glued lamination of dimensional lumber. These columns are ideal for structural applications requiring high strength.

S-P-F Glulam Lumber

S-P-F glulam lumber is glue-laminated lumber from Spruce-Pine-Fir mixed stands, dimensionally stable for headers and beams. It is classified under tariff item 4418.81.00 as engineered glulam with multiple laminations per definition. This lumber is common in Canadian construction due to its availability and performance.

Western Red Cedar Glulam Roof Trusses

Western red cedar glulam roof trusses are pre-engineered glue-laminated roof truss components from western red cedar, laminated for high strength-to-weight ratio. They are classified under tariff item 4418.81.00 as glulam engineered structural timber, not complete joinery. These trusses are used in residential and commercial roofing for their durability and aesthetic appeal.

CLT Stair Flight Panels

Pre-cut cross-laminated timber panels forming complete stair flights for mid-rise buildings. These panels are engineered structural timber products made by gluing layers of wood in alternating orientations, providing strength and stability for stair applications. They fall under this tariff item as cross-laminated timber (CLT) structural products.

Douglas Fir CLT Wall Panels

Pre-cut cross-laminated timber panels from Douglas fir, orthogonally glued for load-bearing walls in multi-story construction. These panels are engineered structural timber products with layers of wood stacked crosswise, providing high strength and dimensional stability. They are classified under this tariff item as cross-laminated timber (CLT) structural products.

Fire-Retardant Treated CLT Panels

Cross-laminated timber panels pressure-impregnated with fire retardant for exposed interior applications. The fire-retardant treatment enhances safety but does not alter the fundamental nature of the product as CLT. They remain classified under this tariff item as cross-laminated timber structural products.

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. These panels are engineered structural timber products made by cross-laminating layers of wood, providing excellent load-bearing capacity. They are classified under this tariff item as cross-laminated timber (CLT) products.

Large Span CLT Roof Deck Panels

Heavy-duty cross-laminated timber panels engineered for 40+ foot clear spans in commercial roofing. These panels are structural CLT products with orthogonally glued layers, designed for large-scale applications. They fall under this tariff item as cross-laminated timber (CLT) structural products, regardless of size or span.

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. These panels are engineered structural timber products with layers of wood glued in alternating directions, providing rigidity and fire resistance. They are classified under this tariff item as cross-laminated timber (CLT) structural products.

Pine Cross-Laminated Timber Floor Panels

CLT flooring panels constructed from cross-laminated southern yellow pine boards, designed for multi-span structural floors. These panels are engineered structural timber products with orthogonally glued layers, offering high strength for flooring. They fall under this tariff item as cross-laminated timber (CLT) structural products.

Spruce Cross-Laminated Timber Panels

Cross-laminated timber (CLT) panels made from layered spruce lumber boards, glued orthogonally for enhanced structural strength. These panels are engineered structural timber products designed for various building applications. They are classified under this tariff item as cross-laminated timber (CLT) structural products.

SYP Cross-Laminated Timber Shear Walls

Pre-manufactured shear wall panels from cross-laminated Southern Yellow Pine (SYP), engineered for seismic zones. These panels are structural CLT products with orthogonal lamination, providing excellent shear resistance. They fall under this tariff item as cross-laminated timber (CLT) structural products.

Western Red Cedar CLT Panels

Cross-laminated timber panels made from premium western red cedar, valued for natural decay resistance in exterior applications. These panels are engineered structural timber products with orthogonally glued layers, combining aesthetics with durability. They are classified under this tariff item as cross-laminated timber (CLT) structural products.

Douglas Fir Engineered I-Beam

An engineered structural I-beam made with Douglas fir glulam flanges and a laminated veneer lumber web, designed for load-bearing applications in commercial building frameworks. This product meets the definition of an I beam under tariff item 4418.83.00 as a prefabricated engineered structural timber product.

Glulam Wood I-Beam

An engineered I-beam made from glued laminated timber (glulam) with top and bottom flanges of multiple laminated wood layers connected by a thin plywood web. This product is a classic example of an I beam under tariff item 4418.83.00, used for structural support in buildings.

LVL Flange I-Joist

A prefabricated I-joist featuring parallel strand lumber (LVL) flanges bonded to an oriented strand board (OSB) web, used in residential floor and roof framing. This product falls under tariff item 4418.83.00 as an engineered structural timber I beam, optimized for strength and lightweight performance.

OSB Web TJI Joist

A Trus Joist I-joist (TJI) with an oriented strand board (OSB) web and machine stress-rated wood flanges, designed for long-span floor applications. This prefabricated engineered structural timber product is classified under tariff item 4418.83.00 as an I beam.

Prefabricated Roof I-Beam

A factory-assembled wood I-beam for roof truss systems, featuring glulam flanges and plywood gusset web plates. This product is intended for permanent building installation and falls under tariff item 4418.83.00 as an engineered structural timber I beam.

Southern Pine LVL I-Joist

An engineered I-joist using southern yellow pine LVL for both flanges and web reinforcement, suited for construction in hurricane-prone regions. This product is classified under tariff item 4418.83.00 as an engineered structural timber I beam, providing high strength and durability.

Cross-Laminated Timber (CLT) Panels

Cross-laminated timber (CLT) panels are large-format structural panels made by stacking and gluing layers of solid-sawn lumber at right angles. They are used as load-bearing walls, floors, and roofs in mid-rise and tall wood buildings. CLT falls under this tariff item as an engineered structural timber product not elsewhere specified.

Engineered Wood Trusses

Engineered wood trusses are pre-assembled structural frameworks made from dimension lumber or engineered wood members, connected with metal plates or gussets. They are used for roofs and floors in residential and commercial buildings. These trusses are classified under this tariff item as other engineered structural timber products.

Glulam Beams

Glulam beams are engineered structural members made by bonding layers of dimension lumber with moisture-resistant adhesives, forming large beams, columns, and arches. They are used in roofs, bridges, and heavy timber frames. Glulam is an engineered structural timber product classified under this tariff item.

I-Joists (Engineered Wood)

I-joists are prefabricated structural beams consisting of wood flanges (typically LVL or solid lumber) and an oriented strand board (OSB) web, joined to form an I-shaped cross-section. They are widely used for floor and roof framing in residential and light commercial construction. As assembled engineered structural timber products, they are classified under this tariff item.

Laminated Strand Lumber (LSL)

Laminated strand lumber (LSL) is an engineered wood product made from aspen or other hardwood strands oriented and bonded with adhesives under pressure, then cut into studs, rim boards, and headers. It is used as a structural framing material. LSL falls under this tariff item as other engineered structural timber.

Laminated Veneer Lumber (LVL)

Laminated veneer lumber (LVL) is an engineered wood product made from thin veneers glued together under heat and pressure, with grain oriented parallel to the length. It is used for beams, headers, joists, and rim boards in construction. LVL is classified under this tariff item as other engineered structural timber.

Mass Plywood Panels (MPP)

Mass plywood panels (MPP) are thick structural panels made by laminating multiple layers of veneer into panels 6 inches or more in thickness, used for shear walls and load-bearing walls in mass timber construction. They are engineered structural timber products classified under this tariff item.

Parallel Strand Lumber (PSL)

Parallel strand lumber (PSL) is an engineered wood product made from long, thin wood strands oriented parallel and bonded with waterproof adhesives, forming high-strength beams and headers. It is used in heavy construction and large openings. PSL is classified under this tariff item as other engineered structural timber.