Agriculture & Forestry
Timber Standing Tree Board Feet Volume (Scribner Log Rule)
Calculate timber standing tree board feet volume (scribner log rule) using the stated engineering or scientific relationship and adjustable field inputs.
Preparing your result…
What this calculator does
Calculates Timber Standing Tree Board Feet Volume (Scribner Log Rule) using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
Scribner formula approximation: board feet = (0.79D² − 2D − 4) × L ÷ 16 (D = small-end inside-bark diameter, in.; L = length, ft)
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Scribner formula approximation board feet=(0.79D²−2D−4)×L/16, with D=small-end inside-bark diameter inches and L=log length feet. Official Scribner/DecimalC scaling uses defined tables and rounding conventions.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Replace diameter²/divisor with a named Scribner method. The continuous formula is an approximation; DecimalC rounds to tens of board feet. State eastside/westside convention, length domain and defect deductions. Log measurements do not automatically give whole standing-tree volume; taper/segmentation or form-class tables are needed.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Small-end diameter inside bark (in.) | Log length (ft) | Log volume (Scribner formula) |
|---|---|---|---|
| Worked example | 16 | 16 | 166.24 board feet |
| Half the amounts | 8 | 8 | 15.28 board feet |
| Double the amounts | 32 | 32 | 1,481.92 board feet |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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