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Scribner Log Rule Calculator

Spike VM

J. M. Scribner developed the Scribner log rule in 1846.

The Scribner Rule is called a diagram rule because the original numbers were derived by fitting boards into perfect circles representing the ends of logs.

Length of Log in Feet ft
DIB Log Small End in Inches inch
Diameter Measured Inside Bark = DIB


Board Feet: bf

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