Log Grades

Sawmill Log Grades and Majority Specifications
(from
Grade Value Increase Rates paper)

Hardwoods

Log Grade

MinimumTip Diameter

Minimum Length

Clear Faces

Prime

16"

8'

4

Select

14"

8'

4

One

12"

8'

3

Two

12"

8'

2

Three

10"

8'

1

Four

10"

8'

0

White pine

Log Grade

MinimumTip Diameter

Minimum Length

Clear Faces

Prime

16"

12'

4

Select

14"

12'

3

One

14"

12'

<1" red knot

Two

12"

12'

<2.5" red knot

Three

8"

8'

<2.5" red knot

Four

8"

8'

<4" red knot

Red pine

Log Grade

MinimumTip Diameter

Minimum Length

Clear Faces

Prime

16"

12'

4

Select

14"

12'

4

One

12"

12'

3

Two

10"

12'

0

Three

8"

12'

0

Four

6"

12'

0

Spruce

Log Grade

MinimumTip Diameter

Minimum Length

Clear Faces

Prime

13"

12'

4

Select

13"

12'

1 knot

One

12"

12'

2 knots

Two

10"

12'

0

Three

8"

12'

0

Four

6"

12'

0

Hemlock

Log Grade

MinimumTip Diameter

Minimum Length

Clear Faces

One

12"

20'

0

Two

10"

16'

0

Three

8"

12'

0

Four

8"

8'

0

 

Hardwood Log and Tree Values (from NPV Appraisals paper)

Log Grade

MinimumTip Diameter

Minimum Length

Clear Faces

Mill $ per Mbf

Stump $ per Mbf

Prime

16"

8' or 10'

4

880

760

Select

14"

8'

4

720

600

One

12"

8'

3

560

440

Two

12"

8'

2

340

220

Three

10"

8'

1

180

60

Four

10"

8'

0

100

-20

Table 1. Hardwood log grades with average specifications and prices for red oak in southern New England, spring 1995.  Stumpage prices assume $120 per Mbf for logging and trucking.

 

8' Log

Tip Diameter

Log Grade

bf Intn'l*

$ per Mbf

Log $

1

16"

Prime

85

760

65

2

14"

Select

65

600

39

3

12"

One

45

440

20

4

10"

Two

30

220

7

Totals:

   

225

 

130

           

$ per Mbf  for Whole Tree:

578

 

Whole Tree $ per Mbf  / Second 8' Log $ per Mbf:

96%

 

*Ashley 1989

       

Table 3.   Estimated tree value for a red oak, tree grade 1, 18 DBH, 2 logs using log grade specifications and prices from Table 1.