# Spike's Rule

The same way as Edward Hoppus attached his name to the Hoppus Foot rule, Spike VM attached his name to the Spike's Rule.

Spike was no mathematician but by the grumbling of his stomach he could calculate the exact hour of dinner time. Spike has been seen cruising timbers and marking individual trees, so that should give him the right to have his name attached to a log scaling rule.

*It is plain to the most casual observer that this is a most excellent rule for calculating log volume, and that "Spike" whoever he might be, succeeded in attaching his name thereto, not as its inventor, but merely as its tabulator, for his popular work is nothing but a ready-reckoner;*

Spike's rule is a simple cubic foot rule that calculates the volume of a log by taking the average diameter of the small end of a log, in inches and the length of this log, in feet.

#### Logging Calculators

##### Log Rule Calculators

Brereton Log Rule - ImperialBrereton Log Rule - Metric

Cubic Metre Rule

Doyle Log Rule

Francon Measure

Hoppus Rule

International 1/8-inch Log Rule

International 1/4-inch Log Rule

International 1/4-inch Log Rule (Grosenbaugh)

International 1/8-inch and 1/4-inch Log Rules

Japanese Agricultural Standard (JAS)

Nova Scotia Cubic Metre Log Scale

Ontario Log Rule

Scribner Log Rule

Scribner Decimal C

Comparing Results from Various Board Feet Log Rules

##### Log Volume Formula Calculators

Chinese National StandardHuber's Formula

Newton's Formula

Pressler's Cubic Foot Formula

Smalian's Formula - Metric

Smalian's Formula - Imperial

Spike's Rule

William Klemme

##### Log Weight and Volume Calculators

Calculate the Merchantable Volume and Green Weight of a LogVolume of Bark

Estimating the Weight of a Log

##### Wood and Moisture

Equilibrium Moisture Content of Wood - CelsiusEquilibrium Moisture Content of Wood - Fahrenheit

Moisture Content Measured On A Dry Basis

Moisture Content Measured On A Wet Basis

Proportional Weight of Wood and Water in One Pound

##### More

Converting between Wood Specific Gravity BasesDiameter of Tree from Circumference Measurement