Qualities
Worldwide there are many different grading rules for round timber
(logs) and sawn timber (lumber). Knowing about this fact we reconcile
the demands and grading requirements of our client with the national
regulations and rules of the origin of logs and lumber.
European
hardwood
(beech, oak, maple, ash and others - see hardwood
from Europe)
|
International
grading rules
i.Pr.
4 side clear
FAS
FAS1F or combined FAS/FAS1F
Common #1
etc.
|
National
grading rules (e.g. ÖHHU)
I
II
etc.
|
European
Softwood (
spruce, pine, larch, fir....)
|
England
|
Europe
|
North
America
|
| |
|
|
| |
I. Kl.
"Prima"
|
Nr. 1
Clear A
|
| |
|
Nr. 2
Clear B & Better
|
|
"US"
|
II. Kl.
"Secunda"
|
Nr. 3
Clear C
|
|
Unsorted
|
III. Kl:
"Tertia"
|
Select-Merchantable
|
| |
IV. Kl.
"Quarta"
|
Nr. 1
Merchantable
|
|
"Quinta"
|
V. Kl.
"Quinta"
|
Nr. 2
Merchantable
|
| |
VI. Kl.
"Sexta"
|
Nr. 3
Common
|
To
specify the quality of round timber is not difficult. World wide the
specification depends on the purpose of use or according to the structure
of the trunk of the tree.
The
primary classification is as follows:
Veneer
logs (for slicing, for peeling)
Sawn logs
Industrial wood for pulp etc.
