Technical Considerations in Harvesting and Sawing Defective Hardwood ButtsHow important are butt defects in hardwoods? We have no reliable estimate of the volume or value of timber lost through basal injuries. However, butt defects will be almost as important in future timber harvests as they are at present. Why? Because most butt defects are due to two causes: fire and logging. Damage from both these agents may be reduced, but it certainly will not be eliminated. |
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100 board feet average defective log average net volume average sound log Better lumber Board foot board foot-dollar ratio butt defects company scaler contractor cull deduction delivered logs Doyle rule evaluation fective logs feet of lumber grade 3 logs gross lumber value hardwood individual logs internally defective butt larger diameters log grade log scale log value log was worth logging costs logging wounds logs and defective LOGS DEFECTIVE LOGS logs of similar longer to saw lumber from defective lumber sawed LUMBER VOLUME SAWED lumber yield lumbermen MBF for defective MBF for sound merchantable logs NET LUMBER VOLUME net scale potential sawlog raw-material costs regression lines relationship sample sawed from sound sawlog dollar value sawlog value Sawmill operators scaling accuracy sound and defective sound versus defective stumpage truckload volume underrun unsound butts unsound logs Upper Darby USDA Forest value between sound value of lumber value per log versus defective logs WILDFIRE