Tree Grading and Scaling Specifications HARDWOODS
Grade |
Minimum DBH |
Minimum HT/DOB |
Quality Requirements |
1* |
18" |
16'/10" |
4 clear faces |
2* |
16" |
16'/10" |
3 clear faces |
3* |
14" |
16'/10" |
2 clear faces |
4* |
12" |
16'/10" |
1 clear face |
5 |
10" |
8'/10" |
sound |
6 |
8" |
8'/6" |
sound |
SOFTWOODSWhite Pine
Grade |
Minimum DBH |
Minimum HT/DOB |
Quality Requirements |
1* |
18" |
24'/10" |
knots <1" D |
2* |
16" |
24'/10" |
knots <2" D |
3* |
14" |
16'/10" |
knots <3" D |
4* |
12" |
16'/10" |
knots <4" D |
Hemlock |
Grade |
Minimum DBH |
Minimum HT/DOB |
Quality Requirements |
1 |
18" |
48'/10" |
sound, FC 75 |
2 |
16" |
32'/10" |
sound, FC 75 |
3 |
14" |
16'/10" |
sound, FC 75 |
4 |
12" |
16'/10" |
sound, FC 65 |
Red Pine
|
Grade |
Minimum DBH |
Minimum HT/DOB |
Quality Requirements |
1 |
14" |
48'/8" |
straight, knots <2" D |
2 |
12" |
32'/8" |
straight, knots <2" D |
3 |
10" |
16'/8" |
straight, knots <2" D |
4 |
10" |
16'/8" |
sound |
* Hardwood grades are based on the best 12' of the first 16' in the tree. Pine grades are based on the first 24'
in the tree. Black-knotted pines are reduced one grade. DOB means diameter outside bark.
NOTE: White pine and hemlock grades 5 and 6 have same specifications as hardwoods. Red pine grades 5 and 6 have the same specifications as hardwoods less 2" DOB. |
