| When trees are cut into logs, they may be sold as: | |
| High Value Veneer logs Sawlogs |
Measure MBF MBF |
| Moderate Value Utility poles Small diameter logs |
MBF Cord/Ton |
| Low Value Cordwood or firewood Pulp logs Mill chips Whole tree chips Sawdust |
Cord Ton Ton Ton Ton/Yd/Cord |
Log Weights
| Species | Ton Per Cord | Ton Per MBF |
| Hardwoods | ||
| White Ash | 2.15 | 4.3 |
| Beech | 2.45 | 4.9 |
| Yellow Birch | 2.55 | 5.1 |
| White Birch | 2.25 | 4.5 |
| Black Cherry | 2.00 | 4.0 |
| Hickory | 2.85 | 5.7 |
| Hard Maple | 2.65 | 5.3 |
| Soft Maple | 2.15 | 4.3 |
| Red Oak | 2.85 | 5.7 |
| White Oak | 2.8 | 5.6 |
| Softwoods | ||
| Hemlock | 2.25 | 4.5 |
| White Pine | 1.60 | 3.2 |
| Red Pine | 1.90 | 3.8 |
Log Scales
|
Scribner Rule- In use since before 1846. This scaling rule is based on a diagram of the size and number of 1" boards that could be sawn from the log allowing for 1/4" kerf. To convert Scribner board feet to International Rule, multiply by 1.11. Doyle Rule - In use since about 1870, this scaling method deducts a full four inches for slabs. Doyle grossly underestimates the yield for small diameter logs. Every fourth Doyle load could be considered free in comparison to International rule, if the logs are within 14" to 20" inches in diameter and the prices per MBF for both scales are identical. To convert Doyle board feet to International Rule, multiply by 1.2. International Rule - In use since about 1906. This is generally regarded as the most accurate of the three scaling methods and deducts only 2.12 inches for slabs and 1/4 inch for kerf. |