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Introducing LVL by Stora Enso

LVL production line in Finland has started

LVL, laminated veneer lumber

image
Light but exceptionally strong

Ideal for applications where strength, workability and weight is a concern.

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Stora Enso has opened a new LVL production line in Varkaus, Finland, and it is the most modern of its kind. Now we are happy to introduce LVL by Stora Enso.
​LVL, laminated veneer lumber, is an advanced wood product suitable for a wide range of structural applications, from new build to repair. ​Being one of the strongest wood-based construction materials relative to its weight, LVL provides an ideal solution when strength, dimensional stability and high load-bearing capacity are needed.
 
The essential benefits of LVL are derived from the choice of raw material used and the manner of production: logs are rotary peeled into 3 mm thick veneers and bonded together under heat and pressure. Every sheet of veneer is individually measured in terms of density, moisture content and modulus of elasticity to optimise the product performance. Sheets are then re-glued into a continuous billet on the most advanced production line built to date.

​Typical applications range from posts and beams to roof trusses, wood-frame construction and prefabricated building elements, but LVL is increasingly being used in challenging industrial applications where strength, workability, stability and weight is a concern.
 
LVL offers effortless handling and processing, and can be fully combined with other building materials. Stora Enso also sees huge potential for large-scale building solutions that are made in combination with CLT by Stora Enso (cross-laminated timber).
 
LVL by Stora Enso is CE marked and available in
  • T grade (best suitable for framing elements)
  • S grade (best suitable for beams)
  • X grade (cross-laminated, best suitable for construction panels and boards).​​

Technical details (click here)

Maximum thickness
​75 mm
​Maximum width 
2500 mm
​Maximum length
​24 m
​Wood species
​Spruce (Picea abies)
​Moisture content 
​8...10% at delivery
​Weight
​Mean density 510 kg/m3 
​Surface
I​ntended for non-visual end usages. Standard LVL is delivered unsanded with a clear glue line on the top face. Calibration and sanding available on request.
​Adhesives
​LVL is consisting of multiple layers of veneers that are bonded together with brown phenolic resin. Top face veneer scarf joints are bonded with clear melamine-formaldehyde resin. LVL meets the formaldehyde emission class E1 according to standard EN 717-1.
​Usage class​Service classes 1 and 2
​Fire class​D-s1, d0 (EN 13501-1)
​Produced in
​Finland



Design values (click here)

Symbol​
 Unit​
LVL S 
24-75 mm​
LVL X 
24-69 mm​
​LVL T 
21-90 mm 
​Bending strength
​edgewise, parallel to grain
​fm,0,edge,k
​N/mm²
​44
​32
​27
​flatwise, parallel to grain
​fm,0, flat,k
​N/mm²
​50
​36
​32
​Size effect parameter 
​s
​0,15
​0,15
​0,15
​Tensile strength
​parallel to grain
ft,0,k​
​N/mm²
​35
​26
​24
​perpendicular to grain,
edgewise
​ft,90,edge,k
​N/mm²
​0,8
​6
​26
​Compressive strength
​​parallel to grain
​fc,0,k
​N/mm²
​35
​26
​​perpendicular to grain,
edgewise
​fc,90,edge,k
​N/mm²
​6
​9
​Shear strength 
​edgewise, parallel to grain
​fv,0,edge,k
​N/mm²
​4,1
​4,5
​flatwise, parallel to grain
​fv,0,flat,k
​N/mm²
​2,3
​1,3
​Modulus of elasticity
​parallel to grain
​E0,mean
​N/mm²
​13 800
​10 500
​10 000
​parallel to grain
​E0,k
​N/mm²
​11 600
​8 800
​8 800
​Shear modulus                           
​edgewise, parallel to grain
​G0,edge,mean
​N/mm²
​600
​600 
​edgewise, parallel to grain
​G0,edge,k
​N/mm²
​400
​400
​Density
​ρmean
​kg/m3
​510
​510
​440
​ρk
kg/m3​
​480
​480
​410


 

​Documents and downloads
Technical brochureFinnish​ English (UK)
​LVL introduction sheet
FinnishEnglish German French Swedish
T grade

​Finnish English French Swedish

​S grade
 
​​X grade