USED:

1) Suitable for various fumigation-free packaging; templates; and beams, rafters, and columns required for various building structures.

2) Wooden structural material, which can replace structural steel or reinforced concrete.

3) Packaging material for machinery and equipment.

PRODUCTION PROCESS锛歕r

LVL (Laminated Veneer Lumber) is a new type of structural material made by pressing together multiple layers of veneers glued together along the same fiber direction.

The manufacturing process of LVL is as follows: logs are turned into standard-sized boards, which are then cut into veneers; after drying, phenolic resin adhesive is evenly sprayed onto the joint surfaces of the veneers and aged; the aged veneers are laid flat layer by layer, with carbon fiber layers filled between the veneer layers; then, cold pressing, hot pressing, and finally, slitting, chamfering, and anti-corrosion treatment are performed to produce LVL boards.

LVL is mainly used in various packaging plants and wood product factories, especially suitable for export packaging of machinery, glass, and chemical products, as well as decorative wooden framing.

LVL (Laminated Veneer Liner) High-Quality, Long-Lasting Strength Structure; LVL Laminated Veneer Plywood; LVL Beam Plywood; Australia & New Zealand

2. Design Standard for Structural Composite Lumber (ASTM D5456)
Key Parameters:
鈥tructural Composite Lumber聽 Standard: ASTM D5456-21e01
鈥� Structural Composite Lumber Scope: Applies to dry service conditions (moisture content < 16%)
鈥� Structural Composite Lumber Required Tests: Bending, tension, compression, shear, bond durability, etc.
鈥� Structural Composite Lumber Adjustment Factors: Based on product type and volume
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3. Volume Factor and Stability Considerations for SCL Members
Key Parameters:
鈥� Structural Composite Lumber Volume Factor (Cv):
鈥tructural Composite Lumber聽 For shallow members (d 鈮� 12″): Cv = (12/d)^(1/m1)
鈥tructural Composite Lumber聽 For deep members (d > 12″): Cv = (12/d)^(1/m2)
鈥tructural Composite Lumber聽 Column Stability Factor (CP): c = 0.9 for SCL
鈥� Structural Composite Lumber Beam Stability Factor (CL): Determined per NDS 3.3.3
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4. Quality Assurance and Characteristic Value Determination for SCL
Key Parameters:
鈥tructural Composite Lumber聽 Characteristic Values: Derived from test data per ASTM D5456
鈥tructural Composite Lumber聽 Design Stress: Adjusted using factors in Table 1 of ASTM D5456
鈥� Structural Composite Lumber Quality Control: Required for each production facility independently
鈥� Structural Composite Lumber Certification: Must be conducted by an independent qualifying agency
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1.LVL Beam Common Trade Size & Tolerance
鈥� Section: 90 脳 45 mm, 120 脳 45 mm, 150 脳 63 mm, 200 脳 75 mm, 240 脳 63 mm, 300 脳 63 mm, 360 脳 45 mm, 400 脳 63 mm, 600 脳 75 mm
鈥� Length: 1.2 m 鈥� 9.5 m (standard increments 0.6 m; 18 m available on request)
鈥� Tolerance on width/thickness: 卤1 mm (-1 / +2 mm for 300 mm & deeper)
鈥� Straightness: 鈮�5 mm per m (bow & spring)
2.LVL Beam Physical Properties
鈥� Density: 520鈥�0 kg/m鲁 (pine core ~580 kg/m鲁, larch core ~730 kg/m鲁)
鈥� Moisture content at dispatch: 9鈥� % (range 6鈥� % per AS/NZS 4357)
鈥� Edge finish: square, arrised 2 脳 2 mm or 3 脳 3 mm chamfer; raw or sealed
3. LVL Beam Mechanical Characteristic Values (AS/NZS 4357 grade F17-E14, 90 脳 45 mm example)
鈥� Bending strength f鈥檅: 63 MPa
鈥� Shear strength f鈥檚: 4.7 MPa
鈥� Compression perpendicular f鈥檖: 8 MPa
鈥� Modulus of elasticity E: 14 GPa (major axis)
鈥� Shear modulus G: 650 MPa
鈥� Bearing (parallel) f鈥檆: 45 MPa
4. LVL Beam Adhesive & Durability
鈥� Glue type: phenolic WBP (EN 314-2 / AS 2754.1 class A-Bond)
鈥� Formaldehyde: Super E0 鈮� 0.3 mg L鈦宦筡r
鈥� Treatment: untreated, H2 (LOSP), H2-S, H3 CCA or ACQ; colour-coded ends
5. LVL Beam Camber & Precamber
鈥� Stock supplied straight; camber 0鈥�mm m鈦宦� available on request for long-span roof beams
6. LVL Beam Packaging & Logistics
鈥� 20鈥� GP: 8 pallets 鈮� 22 m鲁
鈥� 40鈥� HQ: 18鈥� pallets 鈮� 43鈥� m鲁
鈥� Weight per lin-m (90 脳 45 mm): 鈮� 2.4 kg
7.LVL Beam聽 Certification & Marking
鈥� Standards: AS/NZS 4357, EN 14279, ISO 9001
鈥� Chain-of-custody: FSC & PEFC
鈥� Each piece hot-branded with producer ID, grade, batch, mill number, 鈥淔17鈥� or 鈥淓14鈥�, treatment code
8. LVL Beam Design Aids Supplied
鈥� Span tables for floor joists, rafters, lintels鈥擶ind class N2/N3, live load 1.5 kPa / 2.0 kPa, deflection limit L/300 & L/500
鈥� Connection values for M12 bolts, 3.15 脴 nails, 14-g screws鈥攚ithdrawal & lateral load tables
9. LVL BeamStorage & Handling on Site
鈥� Store under cover, stacked on level bearers 鈮�0 mm c/c, free air flow
鈥� Cut ends re-seal within 4 h; pre-drill holes 鈮� % bolt 脴 to minimise splitting

STRUCTURAL LVL Grade E11锛� 脳 45 mm锛�/strong>锛歕r
鈥� Structural LVL聽Bending strength f鈥檅 鈮� 63 MPa
鈥� Structural LVL聽Shear strength f鈥檚 鈮� 4.7 MPa
鈥� Structural LVL聽Compression perpendicular f鈥檖 鈮� 8 MPa
鈥tructural LVL Modulus of elasticity E 鈮� 14 GPa