Glue-laminated timber (glulam)
Builders' joinery and carpentry of wood, including cellular wood panels, assembled flooring panels, shingles and shakes. > Engineered structural timber products: > Glue-laminated timber (glulam) > Glue-laminated timber (glulam) > Glue-laminated timber (glulam)
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Products classified under Tariff item 4418.81.00
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.