Blank dimensions 30 х 235 x 2400 mm

Dimensions (T x W x L), mm: 30 x 215 x 2400
Tolerances on sawn sizes, mm: -0/+3 -0/+5 -0/+10

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Requirements for blanks by grades and purchase value:

Grade A
950 euros per cubic meter


Knots

Sound, intergrown knots

 

Black knots/knot vents

Knots on the edges and crosscut ends

Maximum 2 knots up to 10
mm per board. Pinpoint knots are allowed.

Unallowable

Unallowable

Colour changes

Uniform even colour

 

Texture

Coarse structure, annual rings of more than 5 mm

Ring stains

Ingrown bark

Duramen

Rings with an intergrown structure

Twisting

Unallowable

 

Particular are allowed

Unallowable

Unallowable

Unallowable

Unallowable

Sapwood

 

Unallowable

Shakes

 

Unallowable

Other

Insect injury

Humidity

Unallowable

Natural


Grade B
700 euros per cubic meter


Knots

Sound, intergrown knots

 

 

Black knots/knot vents

 

Knots on the edges and crosscut ends

Sound intergrown knots of a diameter up to 40 mm are allowed

Maximum 3 black knots and vents up to 10 mm are allowed

Unallowable

Colour changes

Uniform even colour

 

Texture

Coarse structure,

annual rings of more than 5 mm

Ring stains

Ingrown bark

Duramen

Rings with intergrown structure

Twisting

Particular are allowed

Are allowed

 

Unallowable

Unallowable

Unallowable

Unallowable

Sapwood

 

Unallowable

Shakes

 

Unallowable

Other

Insect injury

Humidity

Unallowable

Natural


Grade Astig
650 euros per cubic meter


Knots

Sound, intergrown knots

Black knots/knot vents

Knots on the edges and crosscut ends

Are allowed

Are maximally allowed

25 mm
black knots and vents up to 40
mm

Unallowable

Colour changes

Uniform even colour

 

Texture

Coarse structure,

annual rings of more than 5 mm

Ring stains

Ingrown bark

 

Duramen

 

Twisting

Particular are allowed

Are allowed

 

Particular are allowed

Straight and open are allowed,

cross-band and torn are unallowable

Unallowable

Sapwood

 

Unallowable

Shakes

 

Unallowable

Other

Insect injury

Humidity

Unallowable

Natural