Quality inspection items of medium density fiberboard MDF Generally, the quality inspection items of MDF include formaldehyde emission limit in wood-based panels and their products, and the surface bonding strength, water absorption thickness expansion rate, formaldehyde emission, internal bonding strength, static bending strength and other items of MDF products.

Technical Parameters of Ultralam Note: For the production of special batches of Ultralam LVL with high-grade veneer layers (according to the specification), design strength values can be increased by 15 – 20%. CONDITION RELATIVE TO THE GRAIN  Rb  Rs  R  X  I  23,5 ​ 22,5 ​ 22 ​ 3,8 ​ 1,7 ​ 16,5 ​ — ​ 2,6 ​ 1,1 edgewise along the …

Characteristics Average density [kg/m³]550Bending strength: flatwise, parallel to grain [N/mm²]50,00Bending strength: edgewise, parallel to grain (Height: 300mm) [N/mm²]44,00Tensile strength: Flatwise, parallel to grain [N/mm²]36,00Tensile strength: Edgewise, parallel to grain [N/mm²]36,00Compression strength: Flatwise, parallel to grain [N/mm²]40,00Compression strength: Edgewise, parallel to grain [N/mm²]40,00Compressive strength: flatwise, perpendicular to grain [N/mm²]3,60Compressive strength: edgewise, perpendicular to grain [N/mm²]7,50Shear strength: flatwise, parallel to grain [N/mm²]2,60Shear …

Bending stregth fm and elastic modulus E Edgewise, parallel to grain Edgewise, perp. to grain Flatwise, parallel to grain♦ Flatwise, perp. to grain♦♦ Tensile strength ft parallel to grain Edgewise, perp. to grain Compressive strength f parallel to grain♦ Edgewise, perp. to grain♦♦ Flatwise, parallel to grain♦ Shear strength fv and modulus G Edgewise, parallel to grain Edgewise, perp. to …

Laminated Veneer Lumber is a high-strength engineered wood product made from veneers bonded together under heat and pressure. It is used for permanent structural applications including beams and rafters. POPULAR PROBLEMS WHEN IMPORTING LAMINATED VENEER LUMBER (LVL) Laminated Veneer Lumber (LVL) is one of the popular wood materials, and it can replace the sawn timber with some advantages. There’re also many …

Timber in Australia is treated to six levels called Hazard (H) Classes. These treatment levels indicate where the treated product may be used. Hazard ClassWhere the treated wood may be usedWhat the timber is protected againstH1Inside, under cover, protected from the weather and well ventilatedInsectsH1.2**Inside, under cover, protected from the weather subject to moistureInsects and decayH2Inside, under cover, protected from …

Note: For the production of special batches of LVL with high grade veneer layers (according to the specification), design strength values can be increased by 15 – 20%. ConditionRelative to the GrainRbRsRXIbendingedgewise along the grain392726,519,523,5bendingflatwise along the grain4535,527,52422,5compressionedgewise along the grain3025,523,519,522compressionacross the grain54,33,56,83,8compressionperpendicular to the plane of veneer sheets51,91,71,91,7tensionedgewise along the grain2526,522,517,516,5tensionacross the grain––0,7––shear along the glue lineedgewise along the …

Technical Parameters of Ultralam™ Note: For the production of special batches of LVL with high grade veneer layers (according to the specification), design strength values can be increased by 15 – 20%. ConditionRelative to the GrainRbRsRXIbendingedgewise along the grain392726,519,523,5bendingflatwise along the grain4535,527,52422,5compressionedgewise along the grain3025,523,519,522compressionacross the grain54,33,56,83,8compressionperpendicular to the plane of veneer sheets51,91,71,91,7tensionedgewise along the grain2526,522,517,516,5tensionacross the grain––0,7––shear along the …

Structural Composite Lumber: Laminated Veneer Lumber Laminated veneer lumber (LVL) is produced from veneer and intended for structural framing, where high strength and stiffness are required. Softwoods, such as Douglas-fir and southern pines, are typically used. Some hardwoods are also acceptable. As it is a structural product, only high-quality veneer with high strength and stiffness is acceptable. Unlike plywood, all of …

Treated Birch Plywood meeting the requirements of Euro Class B. Suitable for structural applications. Individual birch veneers are soaked in PW-640 (a fire retardant liquid solution) prior to gluing and pressing. This means that augmented fire retardant performance can be achieved as part of the product’s production process and applies to the entirety of the finished panel. This method of …