Scribner Decimal Rule - Multi-Log Calculator
This Scribner Decimal Rule Multi-Log Calculator helps estimate board feet from multiple logs using the Scribner decimal approximation formula. It supports real-time totals, per-log calculations, copyable history, and CSV downloads.
- Doyle Log Rule Calculator - A traditional board foot estimator for hardwoods and eastern timber.
- International Rule Calculator - Scaling rule based on 1/4-inch kerf, common in western forests.
- Estimate Log Weight Using Huber's Formula - Calculates log weight in pounds using cubic foot volume from midsection diameter and length.
Scribner Decimal Rule - Multi-Log Calculator
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Calculator
- Length (ft): enter the log length in feet
- DIB (in): the diameter inside the bark at the small end (must be > 0)
Results
- Board Feet: calculated per log using the using the Scribner Decimal C formula
- Total Board Feet: automatically summed and displayed
- History: full session history of log inputs and results
Scribner Decimal Rule Formula
\[ \text{Board Feet} = 0.0494 \cdot D^2 \cdot L - 0.124 \cdot D \cdot L - 0.269 \cdot L \]
Example Calculation
Given:
- \( D = 14 \, \text{in} \)
- \( L = 16 \, \text{ft} \)
\[ \begin{align*} \text{Board Feet} &= 0.0494 \cdot 14^2 \cdot 16 - 0.124 \cdot 14 \cdot 16 - 0.269 \cdot 16 \\ &= 0.0494 \cdot 196 \cdot 16 - 0.124 \cdot 224 - 4.304 \\ &= 154.4192 - 27.776 - 4.304 \\ &= 122.34 \end{align*} \]
Board Foot Log Rule Calculators
- Brereton Log Rule - Imperial Measurements
- Blodgett Foot Rule
- Doyle Log Rule
- Doyle Log Rule - Multi-Log
- Early Log Rule
- International 1/8-inch Log Rule
- International 1/4-inch Log Rule (Clark Version)
- International 1/4-Inch Log Rule (Clark Version) - Multi-Log
- International 1/4-inch Log Rule (Grosenbaugh)
- International 1/8-inch and 1/4-inch Log Rules
- Roy Log Rule
- Ontario Log Rule
- Scribner Log Rule
- Scribner Decimal Rule - Multi-Log
- Scribner Log Rule: Board Foot Volume of a Tree
- Scribner Decimal C
- Comparing Results from Various Board Feet Log Rules