Quality classes of weatherboards and floorboards
|
| Property |
TK |
OK |
TM |
OM |
| Cracks |
Singel cracks, but not transversing crizzles, are allowed. In the ends the short transversing cracks, maximum board-wide, are allowed.
|
singel cracks, but not transversing cizzles, are allowed. In the ends the short transversing cracks are allowed. |
singel cracks, but not transversing cizzles are allowed. In the ends the short transversing cracks are allowed. |
singel cracks, but not transversing cizzles, are allowed. In the ends the short transversing cracks are allowed.
|
Insect damages
|
Not allowed.
|
Not allowed. |
Not allowed. |
Not allowed. |
Outer bark and beetle damages
|
Not allowed. |
Single small outer barks and beetle damages are allowed. |
Single small outer barks and beetle damages are allowed. |
Single small outer barks and beetle damages are allowed. |
| Rot |
Not allowed. |
Not allowed. |
Not allowed. |
Not allowed. |
Spiral-grained annual ring
|
Allowed to the extent it does not hinder the attachment of the board. |
Allowed to the extent it does not hinder the attachment of the board. |
Allowed to the extent it does not hinder the attachment of the board. |
Allowed to the extent it does not hinder the attachment of the board. |
Knot crackles
|
Single, up to 8 mm knot crackles are allowed to the edges of usage side of the board.
|
Single, up to 9 mm knot crackles are allowed to the edges of usage side of the board. |
Single, up to 10 mm knot crackles are allowed to the edges of usage side of the board. |
Single, up to 11 mm knot crackles are allowed to the edges of usage side of the board. |
knot holes
|
Not allowed. |
Not allowed. |
Not allowed. |
Not allowed. |
| Knots |
Complete knots with the maximum size of 1/3 of the width of the board and single per manent dry knots are allowed.
|
Complete knots with the maximum size of 1/2 of the board are allowd. The knots should be permanent in most part. |
Complete knots with the maximum size of 1/2 of the board are allowd. The knots should be permanent and with raw colour.
|
Complete knots with the maximum size of 1/2 of the width of the board are allowed. the knots should be permanent and wholesome.
|
| Paigad |
Not allowed. |
Not allowed. |
Not allowed. |
Not allowed. |
| Resin pockets |
Small resin pockets are allowed to a small extent. The transversing resin pockets are not allowed.
|
Small resin pockets are allowed to a small extent. The transversing resin pockets are not allowed. |
Small resin pockets are allowed to a small extent. The transversing resin pockets are not allowed. |
Small resin pockets are allowed to a small extent. The transversing resin pockets are not allowed. |
Blue stain
|
Not allowed. |
Not allowed. |
Not allowed. |
Not allowed. |
Finger joints
|
Not allowed. |
Not allowed. |
Not allowed. |
Not allowed. |
Stripes of annaul ring
|
The stripes of annual ring with the maximum lenght of half of the lenght of the board are allowed. |
The stripes of annual ring with the maximum lenght of half of the lenght of the board are allowed. |
The stripes of annual ring with the maximum lenght of half of the lenght of the board are allowed. |
The stripes of annual ring with the maximum lenght of half of the lenght of the board are allowed. |
| Värvidefektid |
Not allowed. |
Not allowed. |
Not allowed. |
Not allowed. |
