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Testing
 
 

Test your own hardwood species

 

If you should wish to carry out compression and bending tests of your own wood species, Compwood could arrange for such tests on your samples based on following requirements:

 

A. Please state:

 
Wood specie, trade name: (See species)

Wood specie, botanical name:

Country of origin:

 

B. Properties of the samples forwarded to Compwood 

 
Moisture contents: 20-30%
 
Dimensions:
 
Cross section of timber (wood) : 
 
85 mm x125 mm or 

45 mm x125 mm or 

45 mm x 65 mm or 

85 mm x 45 mm.

 
Length:  minimum 1 m, maximum 2.8 m. 

 

Please consult us prior to dispatch concerning quantities needed and the fee for the tests.

 

Quality and sampling of wood:

 

All wood to be compressed shall be as straight as possible and must be fully edged.

 
Knots, diameter

Fiberslope 

Heartwood 

Runs of annual ring

Waney edge 

Bark

Curve - twisting

Cracks - scratchs

Overgrowth

Rot - discolouration

Mechanical damage
Max. 10 mm

Max. 1 cm per 10 cm 

Not allowed 

No demands 

Not allowed

Not allowed

Not allowed

Not allowed

Not allowed

Not allowed

Not allowed
 
 
Shipping:

 

All test pieces shall be wrapped air tight in order to avoid drying during shipping.

 

Good results of cold bending of the following hardwood species are obtained so far:

 

Ø        Ash (Fraxinus excelsior), Denmark 

 

Ø        Ash (Fraxinus americana), USA 

 

Ø        Beech (Fagus sylvatica), Denmark 

 

Ø        Beech (Fagus spp.), Japan 

 

Ø        Black Cherry (Prunus serotina), USA 

 

Ø        Elm (Ulmus glabra), Denmark 

 

Ø        Hard Maple (Acer saccharum), USA 

 

Ø        Japanese Cypress (Chamaesypris obtsusa), Japan 

 

Ø        Northern Red Oak (Quercus velutina), USA 

 

Ø        Oak (Quecus spp. deciduas), Japan 

 

Ø        Oak (Quecus petraea), Denmark 

 

Ø        Walnut (Juglans nigra), USA