Sawmill Short Course Log Inputs – Measurement & Conversion ...

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Diameter Deduction Involves reducing the scaling diameter of the log It is used for defects such as sap rot, weather checks, shallow cat faces, perimeter rings, and excessive knots Example: A log with sap rot measures 12” in diameter. The rotten sapwood is 1” thick. The gross diameter of the log is decreased by 2”, with a net diameter and scale of a 10” diameter log.
Bucking <strong>Log</strong>s for Scale (Value) Bucking objectives: Cut logs to mill specifications Maximize value of logs cut from stem Minimize waste
Page 1 and 2: Sawmill Short Course Log Inputs - M
Page 3 and 4: Common Log Measurements Board Foot
Page 5 and 6: Cubic Foot of Wood Defined as a so
Page 7 and 8: Linear Foot of Wood A wood member
Page 9 and 10: Board foot log rules Cubic foot sc
Page 11 and 12: Log Scaling Assumptions The log is
Page 13 and 14: Merchantability Guidelines Guidelin
Page 15 and 16: Defect Classifications (Region 2) 1
Page 17 and 18: Squared Defect Method Defective ar
Page 19: Length Deduction Method Used when
Page 23 and 24: Cubic Foot Measure Cubic foot rule
Page 25 and 26: Two-end Two end Conic Rule The log
Page 27 and 28: Is there a best system? - The case
Page 29 and 30: Benefits of Weight Scaling Reduced
Page 31 and 32: Weight Scale Factors Can use stand
Page 33 and 34: Estimating the Number of Sample Tru
Page 35 and 36: Conversion Factors for Log/Lumber M
Page 37 and 38: Conversion Factors for Log/Lumber M
Page 39 and 40: Log Grading Definition: Classifying
Page 41 and 42: Log Grades (Example)
Page 43 and 44: Grading strategies for small mills

Sawmill Short Course Log Inputs – Measurement & Conversion ...

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