For the terms used in subch. I, the following definitions apply:
Stand Size Classes | Tree Diameter Ranges at 4.5 Feet from Ground Level | Minimum Density |
Seedlings | 0"-1" | 200 trees per acre |
Saplings | 1"-5" | 100 trees per acre |
Pole timber | 5"-9"*,11"** | 3 cords per acre |
Sawtimber | 9"+*, 11"** | 1,300 board feet per acre |
*For conifer species
**For other species
Position in tree | Butt or upper |
Minimum diameter*, small end-Hardwoods | 10.6" |
Minimum diameter*, small end-Conifers | 9.6" |
Minimum length, without trim** | 8' (except walnut and cherry, which are 4') |
Sweep allowance*** | 1/2 of diameter small end for each 8' length |
Maximum scale deduction for unsound defects | 50% |
Clear cuttings free of knots or other defects | No requirements. |
Sound or unsound surface defect limitations | Diameter of knots, holes, rot, etc., may not exceed 1/3 diameter of log at point of occurrence. |
Sound end defects | No requirements |
*Diameter inside bark
**The maximum trim allowance is 8". Cut products that exceed the 8" trim allowance will be classified as misbucked and will be scaled as sawlogs at the next whole foot increment.
***Sweep is defined as the maximum departure distance of a line drawn between the ends of a log from the nearest surface of the log.
Stand Size Classes | Tree Diameter Ranges at 4.5 Feet From Ground Level | Minimum Medium Density |
Seedlings | 0"-1" | 800 trees per acre1 |
Saplings | 1"-5" | 400 trees per acre2 |
Pole timber | 5"-9"*,11"** | 7 cords per acre |
Sawtimber | 9"+*, 11"+** | 3,000 board feet per acre |
*For conifer species
**For other species
1 Applies to natural stands. Planted stands with uniform spacing qualify as medium density with 400 trees per acre.
2 Applies to natural stands. Planted stands with uniform spacing qualify as medium density with 300 trees per acre. Note: DNR Manual Code is available for inspection at any DNR office
Wis. Admin. Code Department of Natural Resources NR 46.02