Panel types, surfaces
& technical characteristics

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Panel types

KLH® solid timber panels are offered in 3 standard qualities. Upon request special surfaces and panel built-ups are possible, depending on the availability of the raw lamellas and technical feasibility. Special structures are possible upon request.

 

By using double layers, the board’s longitudinal and transverse rigidity can be increased in a targeted manner. Changes to the board structure can be used to increase its fire resistance in order to meet special project requirements.

Maximum formatLength 16.50 m / Width 2.95 m / Thickness up to 0.50 m
Minimum production length8.25 m - respectively in 5 cm increments up to the maximum length
Calculation widths2.40, 2.50, 2.73, 2.95 m

For the wall Covering layer in the transverse panel direction TT

Nominal thickness in mm in Layers TypLamella structure [mm]
  
CLCLCLC
KLH®60mm3sTT202020
KLH®70mm3sTT203020
KLH®80mm3sTT302030
KLH®90mm3sTT303030
KLH®100mm3sTT304030
KLH®110mm3sTT403040
KLH®120mm3sTT404040
KLH®100mm5sTT2020202020
KLH®110mm5sTT2020302020
KLH®120mm5sTT3020202030
KLH®130mm5sTT3020302030
KLH®140mm5sTT3020402030
KLH®150mm5sTT3030303030
KLH®160mm5sTT4020402040

For slab and roof Covering layer in the longitudinal panel direction TL

Nominal thickness in mm in Layers TypLamella structure [mm]
  
LCLCLCL
KLH®60mm3sTL202020
KLH®70mm3sTL203020
KLH®80mm3sTL302030
KLH®90mm3sTL303030
KLH®100mm3sTL402040
KLH®110mm3sTL403040
KLH®120mm3sTL404040
KLH®100mm5sTL2020202020
KLH®110mm5sTL2020302020
KLH®120mm5sTL3020202030
KLH®130mm5sTL3020302030
KLH®140mm5sTL4020202040
KLH®150mm5sTL4020302040
KLH®160mm5sTL4020402040
KLH®170mm5sTL4030303040
KLH®180mm5sTL4030403040
KLH®190mm5sTL4040304040
KLH®200mm5sTL4040404040
KLH®160mm5ssTL30+304030+30
KLH®180mm7sTL20402020204020
KLH®200mm7sTL20402040204020
KLH®220mm7sTL30403020304030
KLH®240mm7sTL30403040304030
KLH®180mm7ssTL30+3020202030+30
KLH®200mm7ssTL30+3020402030+30
KLH®220mm7ssTL40+4020202040+40
KLH®240mm7ssTL40+4020402040+40
KLH®260mm7ssTL40+4030403040+40
KLH®280mm7ssTL40+4040404040+40
KLH®300mm8ssTL40+403040+403040+40
KLH®320mm8ssTL40+404040+404040+40

Surfaces &
Qualitydefinition

As a standard, we produce KLH® solid wood panels in spruce and in three different surface qualities, which can be combined as required. This applies without restriction for all the panel types shown previously.

Surfaces treatment and special surfaces

Both the industrial visible quality and the domestic visible quality panels are fully sanded. We also offer domestic visible quality surfaces in a brushed version. Should you require UV protection, varnished elements or any other surface treatment, please contact us. The same applies to surfaces in other types of wood, which we can offer depending on customer requirements and the availability of raw materials.

Overview of the individual surfaces

 Domestic Visible (DVQ)Industrial Visible (IVQ)Non Visible (NVQ)
Application AreaVisible components without restrictions used in residential constructions.Visible components with with moderate restrictions, not recommendet for residential constructions.Pure structural components with subsequent panelling.
Demand towards Surfacehigh demandmedium demandno demand
Production-Related Referenceschamfer on TL panelschamfer on TL panelsno chamfer
Surface Finishing In-Plantfully sanded (one- or double sided) also one side brushedfully sanded (one- or double sided) planed
Surface Treatment In-Planton request on request not possible

Minimum requirements

THE MINIMUM REQUIREMENTS FOR EACH SURFACE DESCRIBED REFER TO THE TIME OF DELIVERY.
FOR NARROW SIDES AND CNC-TREATED SURFACES, THE CRITERIA FOR NON-VISIBLE SURFACES APPLY.

Criteria Domestic visible (DVQ) Industriel visible (IVQ) Non visible (NVQ)
 
Surface treatmentsandedsandedplaned
Type of woodone type of wood one type of wood;
spruce / fir (≤ 10 %)
are regarded as one
type of wood
addition of other types of wood possible
Colour and texture mostly balanced generally balanced no requirements
Blue stain and red tingeslight discolouration
permissible (≤ 3 %)
slight discolouration
permissible (≤ 5 %)
no restrictions
Branches, tightly intergrownpermissiblepermissibleno restrictions
Branches, blackpermissible ≤ 25 mm Ø permissible ≤ 35 mm Øno restrictions
Loose knots, knot holespermissible ≤ 12 mm Ø permissible ≤ 12 mm Øno restrictions
Resin pocketssporadically permissible
≤ 3 x 50 mm
sporadically permissible
≤ 3 x 70 mm
no restrictions
Pithssporadically permissible
length ≤ 800 mm
sporadically permissible
length ≤ 1000 mm
no restrictions
Bark ingrowthimpermissible impermissible no restrictions
Waneimpermissible impermissible permissible
Compression wood sporadically permissible sporadically permissible no restrictions
Cut burrows from inactive
insect infestation
impermissible impermissible sporadically permissible
Wood moisture during production≤ 12 % ≤ 12 %≤ 14 %
Cracks and joints
(at a reference moisture measurement of 12 %)
sporadically permissible
≤ 1,5 mm
sporadically permissible
≤ 2 mm
sporadically permissible
≤ 6 mm
Surface defectssporadically permissible
≤ 12 mm Ø
sporadically permissible
≤ 12 mm Ø
no restrictions
Surface re-treatment
(Filling and plugging of branch holes, strips, etc.)
permissiblepermissible no restrictions
Defects on cutting edgessporadic small
defects permissible
sporadic defects
permissible
no restrictions
Cutting edge re-treatment
manually, using sand paper
yesyesno
Chamfer on DL panelsyesyesno
Range of validityThe given surface qualities at delivery only include the non-machined top layer but not the edges of the elements.
The edges as well as machined surfaces are subject to our non-visual surface criteria.
Crack formationLike all solid wood products, the above stated qualities are subject to crack and joint formation as a result of drying to their future compensation moisture balance when installed due to the product characteristics. This cannot be prevented.

 

Technical
characteristics

 

Technical characteristics

Product name / BrandKLH®
OTHER PRODUCT NAMESCross-laminated timber (CLT) | X-Lam
APPLICATIONStructural elements for walls, floors and roofs
DURABILITYService classes 1 and 2 according to EN 1995-1-1
WOOD SPECIESSpruce (pine, fir, stone pine and other wood types on request)
PANEL BUILD UP3, 5, 7 or more layers depending on static requirements
LAMELLAEThickness 20 to 45 mm, technically dried, quality-sorted and finger-jointed
STRENGTH CLASSC 24 according to EN 338, maximum 10% C 16 permitted (compare ETA-06/0138)
ADHESIVEFormaldehyde-free PUR adhesive, approved for load-bearing and non-load-bearing components indoors and outdoors according to EN 15425
LAMINATING PRESSUREAt least 0.6 N/mm²
WOOD MOISTURE CONTENT12% (+/- 2%) on delivery
MAXIMUM ELEMENT DIMENSIONSLength 16.50 m / width 2.95 m / thickness 0.50 m
PRODUCED WIDTHS2.40 / 2.50 / 2.73 / 2.95 m
SURFACE QUALITYNon-visual quality (NVQ) | Industrial visual quality (IVQ) | Domestic visual quality (DVQ)
Special surfaces on request
WEIGHT5.5 kN/m³ according to ÖNORM B 1991-1-1:2011 for structural analysis
500 kg/m³ for determination of transport weight
MOISTURE MOVEMENTIn panel plane 0.01% per % change in wood moisture content, perpendicular to panel plane (panel thickness direction)
0.24% per % change in wood moisture content
THERMAL CONDUCTIVITYλ = 0.12 W/(m*K) according to EN ISO 10456
HEAT STORAGE CAPACITYcp = 1600 J/(kg*K) according to EN ISO 10456
VAPOUR RESISTANCEµ = 20 to 50 according to EN ISO 10456
AIR TIGHTNESSKLH® solid wood panels can generally be used as airtight layers.
Connections to other components, butt joints, penetrations, etc. must be sealed appropriately.
REACTION TO FIREEuro class D-s2, d0
RESISTANCE TO FIREAccording to ETA - 06/0138

 

Technical Approvals, Certificates and Eco-labels

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+43 3588 8835
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KLH Massivholz GmbH
Gewerbestrasse 4
A-8842 Teufenbach-Katsch

Together with our customers we are contributing to an eco-friendly and sustainable future– this drives us and makes us proud.

Marco Huter | Managing Director

We want to prove our know-how and long-term experience on international level and expand our technology leadership.

Sonja Moder | Int. Projectmanagement | Business Development

Research and development have always been a part of our concept. We aim to use innovative, efficient and both economically and ecologically sustainable solutions in solid timber construction.

Johannes Habenbacher | Managing Director

We always strive to fulfil our customers’ needs. We follow a solution-oriented approach and gladly share our vast of experience. In addition, we constantly strive to improve the availability and energy efficiency of our machines and systems.

Gernot Knapp | Head of Technical Purchasing, Maintenance

We are always looking ahead and open to new developments. Our core values are commitment, competence and partnership.

 

Elisabeth Judmaier | Head of Financial Department

As a market leader we know our product inside out. As a team, we work inter-departmental and across country borders.

Erich Dorfer | Head of Operations

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